Works (71)

Updated: April 4th, 2024 15:49

2024 journal article

Activation of primate frontal eye fields with a CMUT phased array system

JOURNAL OF NEUROSCIENCE METHODS, 402.

By: M. Riley*, B. Roeder*, W. Zinke, M. Weisend*, D. Eidum*, G. Pinton n, A. Biliroglu n, F. Yamaner n, O. Oralkan n, P. Connolly*

author keywords: Transcranial focused ultrasound; Non-invasive stimulation; Frontal eye fields; Local field response; Behavioral task
TL;DR: A new approach for non-invasive stimulation during performance of a behavioral task is provided with the ability to steer stimulation patterns and target using a large amount of transducers, which will be greatly improved for future clinical and research applications. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: January 22, 2024

2024 journal article

Design and Fabrication of 1-D CMUT Arrays for Dual-Mode Dual-Frequency Acoustic Angiography Applications

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 71(1), 191–201.

author keywords: Acoustic angiography (AA); capacitive micromachined ultrasonic transducer (CMUT); dual-mode dual-frequency array; glass substrate
TL;DR: A novel scheme with a capacitive micromachined ultrasonic transducer array to receive high-frequency microbubble harmonics in collapse mode and to transmit a low-frequency high-pressure pulse by releasing the CMUT plate from collapse and pull it back to collapse again in the same transmit-receive cycle. (via Semantic Scholar)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: December 13, 2023

2022 journal article

A Handheld Imaging Probe for Acoustic Angiography With an Ultrawideband Capacitive Micromachined Ultrasonic Transducer (CMUT) Array

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 69(7), 2318–2330.

author keywords: Probes; Imaging; Acoustics; Bandwidth; Angiography; Frequency control; Electrodes; Acoustic angiography (AA); alternate amplitude modulation (aAM); capacitive micromachined ultrasonic transducer (CMUT); glass substrate; handheld ultrasound probe; harmonic ultrasound imaging; ultrawideband (UWB) array
MeSH headings : Angiography; Equipment Design; Transducers; Ultrasonics; Ultrasonography / methods
TL;DR: An imaging probe with a 256-element ultrawideband (UWB) 1-D capacitive micromachined ultrasonic transducer (CMUT) array designed for acoustic angiography (AA) demonstrates the suitability of the UWB CMUT for AA. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: July 1, 2022

2022 article

A pre-charged CMUT structure with a built-in charge storage capacitor

2022 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS).

author keywords: Pre-charged; zero-bias; energy transfer; capacitive micromachined ultrasonic transducer; CMUT
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: February 6, 2023

2021 journal article

A Low-Power Wearable E-Nose System Based on a Capacitive Micromachined Ultrasonic Transducer (CMUT) Array for Indoor VOC Monitoring

IEEE Sensors Journal, 21(18), 19684–19696.

By: M. Mahmud n, C. Seok n, X. Wu n, E. Sennik n, A. Biliroglu n, O. Adelegan n, I. Kim n, J. Jur n, F. Yamaner n, O. Oralkan n

author keywords: Sensors; Sensor arrays; Chemical sensors; Sensitivity; Sensor systems; Monitoring; Resonators; Capacitive micromachined ultrasonic transducer (CMUT); multi-channel; e-nose; volatile organic compound (VOC); automated gas generation; wireless; sensitivity; selectivity; sensor resolution
TL;DR: A low-power wearable e-nose system based on a capacitive micromachined ultrasonic transducer (CMUT) array that can be used for identification of volatiles with suitable pattern-recognition techniques is presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: ORCID
Added: November 16, 2021

2021 article

A Row-Column (RC) Addressed 2-D Capacitive Micromachined Ultrasonic Transducer (CMUT) Array on a Glass Substrate

Sanders, J. L., Biliroglu, A. O., Wu, X., Adelegan, O. J., Yamaner, F. Y., & Oralkan, O. (2021, March). IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, Vol. 68, pp. 767–776.

author keywords: Electrodes; Substrates; Imaging; Impedance measurement; Two dimensional displays; Glass; Acoustics; Capacitive micromachined ultrasonic transducer (CMUT); glass substrate; row-column (RC) array; ultrasound imaging
TL;DR: A row-column capacitive micromachined ultrasonic transducer array fabricated using anodic bonding on a borosilicate glass substrate is presented to reduce the bottom electrode-to-substrate capacitive coupling and improves the relative response of the elements when top or bottom electrodes are used as the “signal” (active) electrode. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 26, 2021

2021 journal article

A Wearable Ultrasonic Neurostimulator-Part I: A 1D CMUT Phased Array System for Chronic Implantation in Small Animals

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 15(4), 692–704.

author keywords: ASIC; brain stimulation; capacitive micromachined ultrasonic transducer (CMUT); freely behaving animals; neurostimulation; ultrasound
MeSH headings : Animals; Equipment Design; Transducers; Ultrasonics; Ultrasonography; Wearable Electronic Devices
TL;DR: A wireless ultrasonic neurostimulator, aiming at a truly wearable device for brain stimulation in small behaving animals, and hydrophone-based acoustic measurements were performed to demonstrate the beam forming and steering capability of the proposed system. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 27, 2021

2021 journal article

A Wearable Ultrasonic Neurostimulator-Part II: A 2D CMUT Phased Array System With a Flip-Chip Bonded ASIC

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 15(4), 705–718.

author keywords: Capacitive micromachined ultrasonic transducer (CMUT); neurostimulator; ultrasound
MeSH headings : Animals; Equipment Design; Mice; Transducers; Ultrasonics; Ultrasonography; Wearable Electronic Devices
TL;DR: A 2D ultrasonic transmit phased array based on a 32 × 32 CMUT array flip-chip bonded to a pitch-matched pulser ASIC for ultrasonic neuromodulation is presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 27, 2021

2021 article

Design and Fabrication of 1D CMUT Arrays for Dual-Mode Acoustic Angiography Applications - Preliminary Results

INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS 2021).

author keywords: Dual-mode dual-frequency; capacitive micromachined ultrasonic transducer; CMUT; acoustic angiography
TL;DR: Finite element model simulation results show that the fabricated devices can transmit at low frequency and receive echoes at high frequency (> 15 MHz), which are verified by experimental results. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 15, 2022

2021 article

Design and Fabrication of Single-Element CMUTs for Forming a Transcranial Array for Focused Beam Applications

INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS 2021).

author keywords: ultrasound; focused; ultrasound; transducer; transcranial; fabrication; stimulation
Sources: Web Of Science, NC State University Libraries
Added: August 15, 2022

2021 journal article

Design and Fabrication of Wideband Air-Coupled Capacitive Micromachined Ultrasonic Transducers With Varying Width Annular-Ring and Spiral Cell Structures

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 68(8), 2749–2759.

By: O. Adelegan n, Z. Coutant n, X. Wu n, F. Yamaner n & O. Oralkan n

author keywords: Annular; anodic bonding process; capacitive micromachined ultrasonic transducer (CMUT); glass substrate; spiral
TL;DR: A design strategy and fabrication process for developing improved concentric annular- and novel spiral-shaped capacitive micromachined ultrasonic transducers that can generate high output pressure and provide wide bandwidth in air are presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 9, 2021

2021 article

Design of Pre-Charged CMUTs with a Metal Floating Gate

INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS 2021).

author keywords: Pre-charged; zero-bias; energy harvesting; capacitive micromachined ultrasonic transducer; CMUT
Sources: Web Of Science, NC State University Libraries
Added: August 15, 2022

2021 journal article

Fabrication of 32 x 32 2D Capacitive Micromachined Ultrasonic Transducer (CMUT) Arrays on a Borosilicate Glass Substrate With Silicon-Through-Wafer Interconnects Using Sacrificial Release Process

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 30(6), 968–979.

author keywords: Capacitive micromachined ultrasonic transducer (CMUT); 2D arrays; glass substrate; silicon-through-glass-vias (Si-TGV); sacrificial release process
UN Sustainable Development Goal Categories
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 10, 2021

2020 journal article

An Improved CMUT Structure Enabling Release and Collapse of the Plate in the Same Tx/Rx Cycle for Dual-Frequency Acoustic Angiography

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 67(11), 2291–2302.

author keywords: Acoustics; Imaging; Transducers; Ultrasonic imaging; Finite element analysis; Electrodes; Frequency control; Contrast-enhanced ultrasound imaging; dual-mode operation; high-frequency (HF) receive; insulation spacers; low-frequency (LF) transmit; microbubbles
MeSH headings : Angiography / instrumentation; Angiography / methods; Contrast Media; Equipment Design; Finite Element Analysis; Microbubbles; Phantoms, Imaging; Transducers; Ultrasonography / instrumentation; Ultrasonography / methods
TL;DR: The ability to detect the microbubble signals with good contrast, and the background reflection is adequately suppressed, indicating the feasibility of the presented approach for acoustic angiography. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: ORCID
Added: October 24, 2020

2020 journal article

Fabrication of 2D Capacitive Micromachined Ultrasonic Transducer (CMUT) Arrays on Insulating Substrates With Through-Wafer Interconnects Using Sacrificial Release Process

Journal of Microelectromechanical Systems, 29(4), 553–561.

author keywords: Capacitive micromachined ultrasonic transducer (CMUT); 2D arrays; glass substrate; alkali-free glass; through-glass-Vias (TGV); sacrificial release process
TL;DR: This study shows an alternative method to fabricate 2D CMUT arrays on glass substrates with metal interconnects, especially when the substrate is not suitable for anodic bonding, as well as improving reliability and reduction in parasitic interconnect capacitance and resistance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: ORCID
Added: May 7, 2020

2019 article

A 2D Capacitive Micromachined Ultrasonic Transducer (CMUT) Array with Through-Glass-Via Interconnects Fabricated Using Sacrificial Etching Process

Adelegan, O. J., Coutant, Z. A., Zhang, X., Yamaner, F. Y., & Oralkan, O. (2019, October). 2019 IEEE International Ultrasonics Symposium (IUS).

UN Sustainable Development Goal Categories
Source: ORCID
Added: September 26, 2020

2019 journal article

A Low-Power Wireless Multichannel Gas Sensing System Based on a Capacitive Micromachined Ultrasonic Transducer (CMUT) Array

IEEE INTERNET OF THINGS JOURNAL, 6(1), 831–843.

By: C. Seok n, M. Mahmud n, M. Kumar n, O. Adelegan n, F. Yamaner n & O. Oralkan n

author keywords: Capacitive micromachined ultrasonic transducer (CMUT); frequency counter; front-end integrated circuit (IC); gravimetric sensor; Internet of Things (IoT); multichannel gas sensor; volatile organic compound (VOC)
TL;DR: A complete low-power wireless gas-sensing system based a capacitive micromachined ultrasonic transducer array, which is known to have several advantages such as high mass sensitivity, easy implementation of a multielement structure, and high selectivity upon polymer coating is presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: March 11, 2019

2019 article

A Sub-Millimeter Lateral Resolution Ultrasonic Beamforming System for Brain Stimulation in Behaving Animals

Seok, C., Yamaner, F. Y., Sahin, M., & Oralkan, O. (2019, July). 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

MeSH headings : Animals; Behavior, Animal; Brain; Equipment Design; Stereotaxic Techniques; Transducers; Ultrasonics
TL;DR: A second-generation wireless ultrasonic beamforming system, aiming for a truly wearable device for brain stimulation in small behaving animals, and the fully-integrated, battery-operated system enables a self- contained untethered system. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2019 journal article

An FPGA-Based Backend System for Intravascular Photoacoustic and Ultrasound Imaging

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 66(1), 45–56.

author keywords: Data acquisition; finite-state machine (FSM); field-programmable gate array (FPGA); photoacoustic (PA) imaging; software/hardware codesign; ultrasound (US) imaging; velocity measurement
MeSH headings : Algorithms; Equipment Design; Image Processing, Computer-Assisted / methods; Phantoms, Imaging; Photoacoustic Techniques / instrumentation; Photoacoustic Techniques / methods; Transducers; Ultrasonography, Interventional / instrumentation; Ultrasonography, Interventional / methods
TL;DR: A low-cost, compact, high-speed, and programmable imaging system based on a field-programmable gate array suitable for dual-mode forward-looking IVUS/IVPA imaging that provides a convenient backend platform for research and clinical IVPA and IVUS imaging. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: February 18, 2019

2019 article

Anodically Bonded CMUT with a Two-Layer Bottom Electrode for Increased Reliability and Reduced Parasitic Capacitance

Coutant, Z. A., Adelegan, O. J., Mahmud, M. M., Yamaner, F. Y., & Oralkan, O. (2019, October). 2019 IEEE International Ultrasonics Symposium (IUS).

By: Z. Coutant n, O. Adelegan n, M. Mahmud n, F. Yamaner n & O. Oralkan n

UN Sustainable Development Goal Categories
Source: ORCID
Added: September 26, 2020

2019 article

Ultrasound Transmission through a Flexible Printed Circuit Board Bonded to the Front Side of a Capacitive Micromachined Ultrasonic Transducer Array: Feasibility Study

Seok, C., Ali, Z., Yamaner, F. Y., & Oralkan, O. (2019, October). 2019 IEEE International Ultrasonics Symposium (IUS).

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2019 article

Ultrasound Transmission through a Flexible Printed Circuit Board Bonded to the Front Side of a Capacitive Micromachined Ultrasonic Transducer Array: Feasibility Study

Seok, C., Ali, Z., Yamaner, F. Y., & Oralkan, O. (2019, October). 2019 IEEE International Ultrasonics Symposium (IUS).

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2019 article

Ultrasound-Based Post-Endovascular Aneurysm Repair (EVAR) Monitoring Device

Young, E. S., Yamaner, F. Y., & Oralkan, O. (2019, October). 2019 IEEE International Ultrasonics Symposium (IUS).

By: E. Young n, F. Yamaner n & O. Oralkan n

TL;DR: A proof of concept is guiding the design of an integrated circuit implementing the key elements of the implantable device, including a pulse echo measurement of the diameter of the vessel lumen, and a data transmission method that encodes clock, data and transmission framing information in biphasic ultrasonic pulses and takes advantage of the wideband characteristics of the CMUT. (via Semantic Scholar)
Source: ORCID
Added: September 26, 2020

2018 journal article

A Fast-Switching (1.35-mu s) Low-Control-Voltage (2.5-V) MEMS T/R Switch Monolithically Integrated With a Capacitive Micromachined Ultrasonic Transducer

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 27(2), 190–200.

author keywords: Microelectromechanical systems (MEMS) switch; capacitive micromachined ultrasonic transducer (CMUT); ultrasound imaging system; transmit/receive (T/R); low-voltage electronics
TL;DR: The presented MEMS switch could potentially eliminate the high-voltage process requirement for the on-chip front-end electronics of a CMUT-based ultrasound imaging system and thus improve the overall system efficiency. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2018 journal article

A Low-Power Wireless Multichannel Gas Sensing System Based on a Capacitive Micromachined Ultrasonic Transducer (CMUT) Array

IEEE Internet of Things Journal.

By: C. Seok, M. Mahmud, M. Kumar, O. Adelegan, F. Yamaner & Ö. Oralkan

Source: NC State University Libraries
Added: March 9, 2019

2018 conference paper

A Row-Column (RC) Addressed 2D Capacitive Micromachined Ultrasonic Transducer (CMUT) Array on a Glass Substrate: Preliminary Results

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Presented at the 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Event: 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

MeSH headings : Cross-Sectional Studies; Electric Capacitance; Electric Impedance; Electrodes; Equipment Design; Transducers; Ultrasonics / instrumentation
TL;DR: Preliminary characterization results from a 32 x 32 row-column (RC) addressed 2D capacitive micromachined ultrasonic transducer (CMUT) array showed that the array elements behave similarly when ground and hot electrodes were switched between the top and bottom electrodes for all of the measured parameters. (via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2018 journal article

Backward-Mode Photoacoustic Imaging Using Illumination Through a CMUT With Improved Transparency

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 65(1), 85–94.

author keywords: Acoustic transducers; capacitive sensors; glass; indium tin oxide; photoacoustic imaging
MeSH headings : Algorithms; Equipment Design; Indocyanine Green / chemistry; Phantoms, Imaging; Photoacoustic Techniques / instrumentation; Photoacoustic Techniques / methods; Silicon Compounds / chemistry; Transducers; Ultrasonography / instrumentation
TL;DR: A capacitive micromachined ultrasonic transducer (CMUT) with improved transparency for photoacoustic imaging (PAI) with backside illumination is described and CMUTs with the proposed structure are promising for PAI withBackside illumination. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Crossref, NC State University Libraries, ORCID
Added: March 9, 2019

2018 conference paper

Design and Fabrication of High-Frequency Ultra-Wideband 1D CMUT Arrays for Acoustic Angiography Applications - Preliminary Results

2018 IEEE International Ultrasonics Symposium (IUS). Presented at the 2018 IEEE International Ultrasonics Symposium (IUS).

Event: 2018 IEEE International Ultrasonics Symposium (IUS)

TL;DR: This work explored the advantages of a thin silicon plate with an added central mass combined with a reduced bottom electrode area to further improve the bandwidth of 1D capacitive micromachined ultrasonic transducer arrays. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2018 conference paper

Design and Implementation of Wideband CMUTs for Airborne Applications - Preliminary Results

2018 IEEE International Ultrasonics Symposium (IUS). Presented at the 2018 IEEE International Ultrasonics Symposium (IUS).

Event: 2018 IEEE International Ultrasonics Symposium (IUS)

Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2018 conference paper

Towards an Untethered Ultrasound Beamforming System for Brain Stimulation in Behaving Animals

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Presented at the 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Event: 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

MeSH headings : Animals; Brain / physiology; Deep Brain Stimulation / instrumentation; Equipment Design; Mice; Transducers; Ultrasonography
TL;DR: A wireless ultrasound transmit (TX) beamforming system, potentially enabling wearable brain stimulation for small awake/behaving animals, and measuring 6-dB beamwidth is promising in that it can stimulate a specific region of the brain, especially for small animals such as mice. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2017 conference paper

A front-end integrated circuit for a 2D capacitive micromachined ultrasound transducer (CMUT) array as a noninvasive neural stimulator

2017 IEEE International Ultrasonics Symposium (IUS). Presented at the 2017 IEEE International Ultrasonics Symposium (IUS).

By: C. Seok n, X. Wu n, F. Yamaner n & O. Oralkan n

Event: 2017 IEEE International Ultrasonics Symposium (IUS)

TL;DR: A front-end integrated circuit for an ultrasound neurostimulation system, to be interfaced with a 16×16 2D CMUT array to realize an ultrasound field pattern (USFP) using quantized phases and amplitudes is presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2017 conference paper

A front-end integrated circuit for a 2D capacitive micromachined ultrasound transducer (CMUT) array for a noninvasive neural interface to the retina

2017 IEEE International Ultrasonics Symposium (IUS). Presented at the 2017 IEEE International Ultrasonics Symposium (IUS).

Event: 2017 IEEE International Ultrasonics Symposium (IUS)

TL;DR: A front-end integrated circuit (IC) for a 2D CMUT array that realizes a USFP with quantized phases and amplitudes is reported that evaluates the projected image quality with Field II simulations considering non-linearity in phases extracted from a fabricated prototype chip. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2017 article

A handheld 1D transparent CMUT array probe for photoacoustic imaging

Sanders, J. L., Zhang, X., Wu, X., Adelegan, O. J., Yamaner, F. Y., Kudenov, M., & Oralkan, O. (2017, September). 2017 IEEE International Ultrasonics Symposium (IUS).

Source: ORCID
Added: September 26, 2020

2017 conference paper

A handheld 1D transparent CMUT array probe for photoacoustic imaging: Preliminary results

2017 IEEE International Ultrasonics Symposium (IUS). Presented at the 2017 IEEE International Ultrasonics Symposium (IUS).

Event: 2017 IEEE International Ultrasonics Symposium (IUS)

TL;DR: A 1D PAI probe that integrates a 1D CMUT array, a fiber bundle, in-probe optics, and low-noise amplifiers which interface with a real-time imaging system is presented and the PAI capability of a single transparent CMUT element is demonstrated. (via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: March 24, 2019

2017 article

An optically transparent air-coupled capacitive micromachined ultrasonic transducer (CMUT) fabricated using adhesive bonding

Zhang, X., Yamaner, F. Y., Adelegan, O., & Oralkan, O. (2017, September). 2017 IEEE International Ultrasonics Symposium (IUS).

Source: ORCID
Added: September 26, 2020

2017 conference paper

An optically transparent capacitive micromachined ultrasonic transducer (CMUT) fabricated using SU-8 or BCB adhesive wafer bonding

2017 IEEE International Ultrasonics Symposium (IUS). Presented at the 2017 IEEE International Ultrasonics Symposium (IUS).

Event: 2017 IEEE International Ultrasonics Symposium (IUS)

Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2017 journal article

Fabrication of Vacuum-Sealed Capacitive Micromachined Ultrasonic Transducers With Through-Glass-Via Interconnects Using Anodic Bonding

Journal of Microelectromechanical Systems, 26(1), 226–234.

UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2017 conference paper

Gravimetric biosensor based on a capacitive micromachined ultrasonic transducer functionalized with peptide ligands

2017 IEEE SENSORS. Presented at the 2017 IEEE SENSORS.

By: M. Mahmud, H. Reese, A. Joshipura, C. Seok, F. Yamaner, M. Daniele n, S. Menegatti, O. Oralkan*

Event: 2017 IEEE SENSORS

Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2017 conference paper

Improved CMUT structure and method of operation for dual-frequency acoustic angiography

2017 IEEE International Ultrasonics Symposium (IUS). Presented at the 2017 IEEE International Ultrasonics Symposium (IUS).

Event: 2017 IEEE International Ultrasonics Symposium (IUS)

TL;DR: A novel scheme to transmit a LF high-pressure pulse from a capacitive micromachined ultrasonic transducer (CMUT) operating in conventional mode and then switching to collapse mode to receive the HF microbubble harmonics in the same transmit-receive cycle is proposed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2017 article

Improved CMUT structure and method of operation for dual-frequency acoustic angiography

Mahmud, M. M., Adelegan, O. J., Sanders, J. L., Zhang, X., Yamaner, F. Y., Dayton, P. A., & Oralkan, O. (2017, September). 2017 IEEE International Ultrasonics Symposium (IUS).

By: M. Mahmud, O. Adelegan, J. Sanders, X. Zhang, F. Yamaner, P. Dayton, O. Oralkan

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2016 conference paper

2D CMUT array based ultrasonic micromanipulation platform

2016 IEEE International Ultrasonics Symposium (IUS). Presented at the 2016 IEEE International Ultrasonics Symposium (IUS).

By: A. Zeshan*, X. Zhang n, O. Oralkan n & F. Yamaner*

Event: 2016 IEEE International Ultrasonics Symposium (IUS)

Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 conference paper

A MEMS T/R switch embedded in CMUT structure for ultrasound imaging frontends

2016 IEEE International Ultrasonics Symposium (IUS). Presented at the 2016 IEEE International Ultrasonics Symposium (IUS).

By: X. Zhang n, A. Zeshan*, O. Adelegan n, F. Yamaner* & O. Oralkan n

Event: 2016 IEEE International Ultrasonics Symposium (IUS)

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 conference paper

CMUTs on glass with ITO bottom electrodes for improved transparency

2016 IEEE International Ultrasonics Symposium (IUS). Presented at the 2016 IEEE International Ultrasonics Symposium (IUS).

Event: 2016 IEEE International Ultrasonics Symposium (IUS)

Sources: Crossref, NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 journal article

Focused Ultrasound and NXY-059 in Experimental Cerebral Ischemia: A New Therapeutic Opportunity?

CNS & Neurological Disorders - Drug Targets, 15(9), 1010–1013.

By: B. Yulug*, L. Hanoglu, F. Yamaner, E. Kilic & W. Schabitz

MeSH headings : Animals; Antioxidants / therapeutic use; Benzenesulfonates / therapeutic use; Brain Ischemia / diagnostic imaging; Brain Ischemia / therapy; Magnetic Resonance Imaging; RNA-Binding Protein FUS / metabolism; Ultrasonic Therapy / methods
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: March 9, 2019

2015 journal article

A Three-Mask Process for Fabricating Vacuum-Sealed Capacitive Micromachined Ultrasonic Transducers Using Anodic Bonding

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 62(5), 972–982.

MeSH headings : Electrodes; Equipment Design; Microtechnology; Models, Theoretical; Silicon Compounds / chemistry; Transducers; Ultrasonography / instrumentation; Vacuum
TL;DR: This paper introduces a simplified fabrication method for vacuum-sealed capacitive micromachined ultrasonic transducer arrays using anodic bonding, which combines the advantages of a patterned metal bottom electrode on an insulating substrate, specifically low parasitic series resistance and low parasitic shunt capacitance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 conference paper

A capacitive micromachined ultrasonic transducer (CMUT) array as a low-power multi-channel volatile organic compound (VOC) sensor

2015 IEEE SENSORS, 181–184.

By: M. Mahmud n, M. Kumar n, X. Zhang n, F. Yamaner n, H. Nagle n & O. Oralkan n

Event: 2015 IEEE Sensors

Sources: ORCID, Crossref, NC State University Libraries
Added: March 20, 2019

2015 conference paper

A capacitive micromachined ultrasonic transducer (CMUT) array as a low-power multi-channel volatile organic compound (VOC) sensor

2015 ieee sensors, 181–184.

By: M. Mahmud, M. Kumar, X. Zhang, F. Yamaner, H. Nagle & O. Oralkan

Source: NC State University Libraries
Added: August 6, 2018

2015 conference paper

Design of high-frequency broadband CMUT arrays

2015 IEEE International Ultrasonics Symposium (IUS). Presented at the 2015 IEEE International Ultrasonics Symposium (IUS).

By: X. Zhang n, F. Yamanery, O. Adelegan n & O. Oralkan n

Event: 2015 IEEE International Ultrasonics Symposium (IUS)

author keywords: High frequency transducer array; Broadband; CMUT; Anodic bonding; Glass
UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2015 conference paper

Fabrication of capacitive micromachined ultrasonic transducers with through-glass-via interconnects

2015 IEEE International Ultrasonics Symposium (IUS). Presented at the 2015 IEEE International Ultrasonics Symposium (IUS).

By: X. Zhang n, F. Yamanery & O. Oralkan n

Event: 2015 IEEE International Ultrasonics Symposium (IUS)

author keywords: CMUT; TGV; Anodic bonding; 3D integration; Glass
UN Sustainable Development Goal Categories
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2014 conference paper

A low-power gas sensor for environmental monitoring using a capacitive micromachined ultrasonic transducer

IEEE SENSORS 2014 Proceedings. Presented at the 2014 IEEE Sensors.

By: M. Mahmud n, J. Li n, J. Lunsford n, X. Zhang n, F. Yamaner n, H. Nagle n, O. Oralkan n

Event: 2014 IEEE Sensors

Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2014 article

Fabrication of Anodically Bonded Capacitive Micromachined Ultrasonic Transducers with Vacuum-Sealed Cavities

2014 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), pp. 604–607.

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

High-power CMUTs: design and experimental verification

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 59(6), 1276–1284.

MeSH headings : Computer Simulation; Electric Impedance; Electronics, Medical / instrumentation; Equipment Design; Models, Theoretical; Transducers; Ultrasonography / instrumentation
TL;DR: A design approach in which uncollapsed CMUT array elements are sized so as to operate at the maximum radiation impedance and have gap heights such that the generated electrostatic force can sustain a plate displacement with full swing at the given drive amplitude is described. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019

2012 conference paper

Performance assessment Of CMUTs in dual modality imaging/HIFU applications

2012 IEEE International Ultrasonics Symposium. Presented at the 2012 IEEE International Ultrasonics Symposium.

By: C. Meynier*, Y. Yanamer*, M. Canney*, A. Nguyen-Dinh, A. Carpentier & J. Chapelon*

Event: 2012 IEEE International Ultrasonics Symposium

author keywords: cMUT; transducer; HIFU; ultrasound imaging
TL;DR: The dual imaging-HIFU capability of the cMUT array is demonstrated and this is a new feature of the CMUT technology, as piezoelectric transducers are designed with a trade-off between bandwidth and transduction efficiency. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2011 journal article

An equivalent circuit model for transmitting capacitive micromachined ultrasonic transducers in collapse mode

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(7), 1468–1477.

MeSH headings : Finite Element Analysis; Microtechnology; Transducers; Ultrasonography / instrumentation
TL;DR: An equivalent nonlinear electrical circuit that can accurately simulate the mechanical behavior of a CMUT with given dimensions and mechanical parameters under any large or small signal electrical excitation, including the collapse mode is developed. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019

2011 article

CMUT array element in deep-collapse mode

Olcum, S., Yamaner, F. Y., Bozkurt, A., Koymen, H., & Atalar, A. (2011, October). 2011 IEEE International Ultrasonics Symposium.

Source: ORCID
Added: September 26, 2020

2011 journal article

Deep-collapse operation of capacitive micromachined ultrasonic transducers

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(11), 2475–2483.

MeSH headings : Computer-Aided Design; Electric Capacitance; Equipment Design; Equipment Failure Analysis; Transducers; Ultrasonic Therapy / instrumentation; Ultrasonography / instrumentation
TL;DR: It is shown that the output pressure of CMUTs can be significantly increased by deep-collapse operation, which utilizes an electrical pulse excitation much higher than the collapse voltage. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019

2011 article

Design and implementation of capacitive micromachined ultrasonic transducers for high power

Yamaner, F. Y., Olcum, S., Bozkurt, A., Koymen, H., & Atalar, A. (2011, October). 2011 IEEE International Ultrasonics Symposium.

Source: ORCID
Added: September 26, 2020

2010 conference paper

An equivalent circuit for collapse operation mode of CMUTs

2010 IEEE International Ultrasonics Symposium. Presented at the 2010 IEEE Ultrasonics Symposium (IUS).

Event: 2010 IEEE Ultrasonics Symposium (IUS)

Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2010 conference paper

Optimizing CMUT geometry for high power

2010 IEEE International Ultrasonics Symposium. Presented at the 2010 IEEE Ultrasonics Symposium (IUS).

Event: 2010 IEEE Ultrasonics Symposium (IUS)

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2009 journal article

Dual-electrode CMUT with non-uniform membranes for high electromechanical coupling coefficient and high bandwidth operation

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56(6), 1270–1276.

MeSH headings : Computer-Aided Design; Electrodes; Equipment Design; Equipment Failure Analysis; Membranes, Artificial; Micro-Electrical-Mechanical Systems / instrumentation; Reproducibility of Results; Sensitivity and Specificity; Transducers; Ultrasonography / instrumentation
TL;DR: Measurement results on dual-electrode CMUT demonstrating electromechanical coupling coefficient (k2) of 0.82 at 90% of collapse voltage as well as 136% 3 dB one-way fractional bandwidth at the transducer surface around the design frequency of 8 MHz are reported. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019

2009 conference paper

Modeling the pulse-echo response of a 2D CMUT array element

2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.

Event: 2009 IEEE International Ultrasonics Symposium

Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2009 conference paper

Wafer bonded capacitive micromachined underwater transducers

2009 IEEE International Ultrasonics Symposium. Presented at the 2009 IEEE International Ultrasonics Symposium.

By: S. Olcum*, K. Oguz*, M. Senlik*, F. Yamaner*, A. Bozkurt*, A. Atalar*, H. Koymen*

Event: 2009 IEEE International Ultrasonics Symposium

UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2008 conference paper

Front-end IC design for intravascular ultrasound imaging

2008 Ph.D. Research in Microelectronics and Electronics. Presented at the 2008 Ph.D. Research in Microelectronics and Electronics (PRIME).

Event: 2008 Ph.D. Research in Microelectronics and Electronics (PRIME)

TL;DR: Two different designs of front-end IC for 2D cMUT arrays that can be used for intravascular ultrasound imaging system are presented and the results show that the front- end circuit tested with the equivalent circuit model of the cM UT elements is promising for the optimization of the overall system performance before manufacturing. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2008 conference paper

Ultrasonic phased array device for real-time acoustic imaging in air

2008 IEEE Ultrasonics Symposium. Presented at the 2008 IEEE Ultrasonics Symposium (IUS).

Event: 2008 IEEE Ultrasonics Symposium (IUS)

TL;DR: The results of these experiments prove the grating lobe suppression capability of the applied placement strategy and the functionality of the system is tested with several experiments. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 18, 2019

2007 conference paper

A Low Noise Capacitive Feedback Analog Front-end for CMUTs in IVUS Imaging

Proceedings of the 2007 IEEE Ultrasonics Symposium.

By: C. Reddy, A. Bozkurt, F. Yamaner & T. Ytterdal

Source: NC State University Libraries
Added: March 18, 2019

2007 conference paper

Front-End IC Design for 2D cMUT Arrays: Modeling and Experimental Verification

Proceedings of the 2007 IEEE Ultrasonics Symposium.

By: F. Yamaner & A. Bozkurt

Source: NC State University Libraries
Added: March 18, 2019

2007 article

P4M-6 A Low Noise Capacitive Feedback Analog Front-End for CMUTs in Intra Vascular Ultrasound Imaging

Cenkeramaddi, L. R., Bozkurt, A., Yamaner, F. Y., & Ytterdal, T. (2007, October). 2007 IEEE Ultrasonics Symposium Proceedings.

author keywords: CMUT; CMUT sensing circuit; CMUT analog front-end; CMUT-CMOS; low-noise; ultrasound front end; high voltage ultrasound pulser; IVUS imaging; capacitive feedback analog front-end
TL;DR: The proposed capacitive feedback analog front-end for intra vascular ultrasound (IVUS) imaging as opposed to the conventional resistive feedback Analog front-ends was able to achieve an overall noise figure of less than 2 dB. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2007 article

P4M-7 Front-End IC Design for 2D cMUT Arrays: Modeling and Experimental Verification

Yamaner, F. Y., & Bozkurt, A. (2007, October). 2007 IEEE Ultrasonics Symposium Proceedings.

Source: ORCID
Added: September 26, 2020

2006 conference paper

A Lumped Circuit Model for the Mutual Radiation Impedance of Acoustic Array Elements

Proceedings of the 2006 IEEE Ultrasonics Symposium.

By: F. Yamaner & A. Bozkurt

Source: NC State University Libraries
Added: March 18, 2019

2006 article

P3R-6 A Lumped Circuit Model for the Mutual Radiation Impedance of Acoustic Array Elements

2006 IEEE Ultrasonics Symposium.

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 26, 2020

2005 journal article

A biotelemetric system for human ECG measurements

Measurement, 38(2), 148–153.

author keywords: ECG; telemedicine; biomedical electronics
TL;DR: A prototype telemedicine system which provides human electrocardiogram signals transferring via a mobile phone and covers the management of electronic records of patient and access to databases on the hospital side is presented. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: March 9, 2019

Employment

Updated: May 2nd, 2024 12:39

2019 - present

Clearsens Inc. Raleigh, NC, US
CEO

2016 - present

North Carolina State University Raleigh, NC, US
Research Assistant Professor Department of Electrical and Computer Engineering

2014 - 2016

Istanbul Medipol University Istanbul, TR
Assistant Professor Engineering

Education

Updated: December 10th, 2019 14:34

2006 - 2011

Sabancı University Istanbul, TR
Ph.D. Electronics Engineering

2004 - 2006

Sabanci University Istanbul, TR
M.Sc. Electronics Engineering

1999 - 2004

Ege University Izmir, TR

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