Tayfun Akın

E-mail

tayfuna@metu.edu.tr

Department

Department of Electrical and Electronics Engineering

ORCID

0000-0001-8275-8146

Scopus Author ID

7004435753

Web of Science Researcher ID

O-6924-2015

Temperature-dependent evolution of Al-Ge microstructures for wafer-level vacuum packaging of MEMS devices Dimez, Bekir Gürel; Akın, Tayfun; Kalay, Yunus Eren (2025-04-01) This paper reports the temperature dependency of eutectic aluminum-germanium (Al-Ge) microstructures that can be used for complementary metal-oxide semiconductor (CMOS)-compatible wafer-level vacuum packaging of microelect...
Performance Evaluation of Small Pixel-Sized Gd2O2S and CsI CMOS X-ray Detectors Mart, Yagiz; Aslan, Ahmet Arif; Buyukdemirci, Kaan; Lee, Denny; Akın, Tayfun; Camlica, Ahmet (2025-01-01) Flat panel X-ray detectors with thin-film t ransistors (TFT) a re w idely u sed i n X -ray m edical i maging applications. However, indirect X-ray detectors with TFT suffer f rom a n i nadequate s patial r esolution t hat ...
Wafer Level Vacuum Packaging of MEMS-Based Uncooled Infrared Sensors Demirhan Aydin, Gulsah; Akar, Orhan Sevket; Akın, Tayfun (2024-08-01) This paper introduces a cost-effective, high-performance approach to achieving wafer level vacuum packaging (WLVP) for MEMS-based uncooled infrared sensors. Reliable and hermetic packages for MEMS devices are achieved usin...
Energy-efficient switching method using input-swapping for high-resolution successive approximation register analog-to-digital converters Kocak, Serhat; Akın, Tayfun (2024-05-01) This paper presents an energy-efficient digital-to-analog converter (DAC) switching method with low common-mode variations for high-resolution successive approximation register (SAR) analog-to-digital converters (ADCs), wh...
Tuning structural, electrical, and THz optical properties of VxOy films with W-doping Atik, Bahar; Dirican, Emrah; Demirors, Oytun; Altan, Hakan; Esentürk, Okan; Yildirim, Mustafa; Akın, Tayfun (2022-05-01) Vanadium oxide plays a crucial role as the temperature-sensitive layer of microbolometers. This layer should possess a high temperature coefficient of resistance (TCR) along with a desirable resistivity suitable for readou...
Interband optical absorption obtained by pseudopotential method for type-II InAs/GaSb SL photodetectors Akel, Kazim; Hoştut, Mustafa ; Akın, Tayfun; Ergun, Yuksel (2021-05-01) We have calculated interband optical absorption for InAs/GaSb based type-II superlattice (SL) structures. The empirical pseudopotential method (EPM) has been used as an alternative to the k.p method since it is less sophis...
Optimization of a microbolometer pixel for operation in the sub-1 THz region Demirörs, Oytun; Atik, Bahar; Dirican, Emrah; Altan, Hakan; Esentürk, Okan; Ylldlrlm, Mustafa; Akın, Tayfun (2021-01-01) Imaging in the Terahertz (THz) region has drawn attention in recent years, but the nature of the THz frequency regime causes some drawbacks in imaging such as long wavelength, high cost, and low emission levels at room tem...
Investigation of doped and undoped VOxfilms for terahertz microbolometer applications Atik, Bahar; Dirican, Emrah; Demirörs, Oytun; Altan, Hakan; Esentürk, Okan; Ylldlrlm, Mustafa; Akın, Tayfun (2021-01-01) The microbolometer technology has proved its potential in the Infrared (IR) region due to its low fabrication costs, and room temperature operation, making this technology desirable to be used in various applications, and ...
An all-silicon process platfom for wafer-level vacuum packaged MEMS devices Torunbalci, Mustafa Mert; Gavcar, Hasan Dogan; Yesil, Ferhat; Alper, Said Emre; Akın, Tayfun (2021-01-01) This paper introduces a novel, inherently simple, and all-silicon wafer-level fabrication and hermetic packaging method developed for MEMS devices. The proposed method uses two separate SOI wafers to form highly-doped thro...
Realization of Single Layer Microbolometer Detector Pixel Using ZnO Material Tanrikulu, M. Yusuf; Yildizak, Cigdem; Okyay, Ali K.; Akar, Orhan; Sarac, Adem; Akın, Tayfun (Institute of Electrical and Electronics Engineers (IEEE), 2020-09-01) This paper presents the realization of a single layer microbolometer pixel fabricated using only ZnO material coated with atomic layer deposition. Due to the stress-free nature and high temperature coefficient of resistanc...

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