Hyungtak Kim
Hongik University
121 Papers
588 Citations
Hyungtak Kim is an academic researcher from Hongik University. The author has contributed to research in topics: High-electron-mobility transistor & Threshold voltage. The author has an hindex of 20, co-authored 114 publications. Previous affiliations of Hyungtak Kim include Cornell University & Samsung.
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Papers
Optimization of field-plate AlGaN/GaN HFETs for high-voltage and high-frequency operation
Hoonsang Yoon,Hyungtak Kim +1 more
TL;DR: In this paper, double-layered passivation with a source field plate was proposed and optimized to secure both high-voltage and high-frequency operation, while maintaining high breakdown voltage performance without compromising frequency response and without increasing fabrication complexity.
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Development of a Au-free process using Mo-based metallization for high-power AlGaN/GaN-on-Si heterostructure field-effect transistors
TL;DR: In this paper, a Mo-based, Au-free ohmic contact process for fabricating AlGaN/GaN heterostructure field effect transistors (HFETs) on Si substrates was developed by using Mobased metallization.
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Diode Embedded AlGaN/GaN Heterojuction Field-Effect Transistor
TL;DR: In this paper, three examples of the embedding of different functional diode(s) into AlGaN/GaN heterojunction field effect transistors are presented, which can minimize the parasitic effects caused by interconnection between devices.
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Wave-induced current at Anmok Beach, Korea
Hyungtak Kim,Duhoon Park,Seang-Wock Lee,Hyoun Soo Lim +3 more
- 01 Aug 2017
TL;DR: In this article, a numerical model system called CST3D-WA was used to reproduce the wave-induced current fields on Anmok Beach, where the largest instantaneous current speed at a station during a period was 46 cm/s.
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Simple dual-loop optoelectronic oscillator with a low spurious level
TL;DR: In this paper, a simple dual-loop optoelectronic oscillator with reduced spurious tones was demonstrated by using dual-direct modulation of a multi-electrode distributedfeedback semiconductor laser.
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