J
Jung-Hwan Choi
Researcher at Samsung
Publications - 117
Citations - 896
Jung-Hwan Choi is an academic researcher from Samsung. The author has contributed to research in topics: Signal & Dram. The author has an hindex of 16, co-authored 103 publications receiving 797 citations.
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Proceedings ArticleDOI
A 3.6-Gb/s point-to-point heterogeneous-voltage-capable DRAM interface for capacity-scalable memory subsystems
Joseph T. Kennedy,Robert M. Ellis,James E. Jaussi,R. Mooney,S. Borkar,Jung-Hwan Choi,Jae-Kwan Kim,Chan-Kyong Kim,Woo-Seop Kim,Changhyun Kim,Soo-In Cho,Steffen Loeffler,Jochen Hoffmann,Wolfgang Hokenmaier,R. Houghton,Thomas Vogelsang +15 more
TL;DR: A DRAM interface operating at 3.6 Gb/s/pin implemented in 130-nm CMOS logic and 110-nm DRAM process technologies utilizes simultaneous bidirectional signaling in a daisy-chained, point-to-point configuration to enable high performance scalable memory subsystems and also provides direct attach capability for DRAMs to memory controllers or other logic devices.
Journal ArticleDOI
A 1.2 V 30 nm 3.2 Gb/s/pin 4 Gb DDR4 SDRAM With Dual-Error Detection and PVT-Tolerant Data-Fetch Scheme
Kyomin Sohn,Taesik Na,In-Dal Song,Yong Shim,Won-Il Bae,Sang-Hee Kang,Dong Su Lee,Han-Gyun Jung,Hanki Jeoung,Ki-Won Lee,Junsuk Park,Jongeun Lee,Byung-Hyun Lee,Inwoo Jun,Ju-Seop Park,Junghwan Park,Hundai Choi,Sang Hee Kim,Haeyoung Chung,Young Sang Choi,Dae-Hee Jung,Jang Seok Choi,Byung-sick Moon,Jung-Hwan Choi,Byung-Chul Kim,Seong-Jin Jang,Joo Sun Choi,Kyung Seok Oh +27 more
TL;DR: Dual error detection scheme is proposed to guarantee the reliability of signals, and gain enhanced buffer and PVT tolerant data fetch scheme are adopted for CA and DQ respectively to reduce the output jitter.
Proceedings ArticleDOI
A 3.6 Gb/s/pin simultaneous bidirectional (SBD) I/O interface for high-speed DRAM
Jae-Kwan Kim,Jung-Hwan Choi,Sung-Woo Shin,Chan-Kyong Kim,Hwa-Yong Kim,Woo-Seop Kim,Chang-Hyun Kim,Soo-In Cho +7 more
TL;DR: A point-to-point I/O interface for high-speed DRAM that utilizes simultaneous bidirectional signaling that enables transmitting/receiving data through a line at the same time is described.
Journal ArticleDOI
A 1.2 V 20 nm 307 GB/s HBM DRAM With At-Speed Wafer-Level IO Test Scheme and Adaptive Refresh Considering Temperature Distribution
Kyomin Sohn,Won-Joo Yun,Reum Oh,Chi-Sung Oh,Seong-young Seo,Min-Sang Park,Dong-Hak Shin,Won-Chang Jung,Sang-hoon Shin,Je-Min Ryu,Hye-Seung Yu,Jae-Hun Jung,Hyunui Lee,Seok-Yong Kang,Young-Soo Sohn,Jung-Hwan Choi,Yong-Cheol Bae,Seong-Jin Jang,Gyo-Young Jin +18 more
TL;DR: The 2nd generation HBM is proposed to double the bandwidth to more than 256GB/s and support pseudo-channel mode and 8H stacks, and an adaptive refresh considering temperature distribution (ART) scheme as a solution.
Proceedings ArticleDOI
1.2V 1.6Gb/s 56nm 6F 2 4Gb DDR3 SDRAM with hybrid-I/O sense amplifier and segmented sub-array architecture
Yongsam Moon,Yong-Ho Cho,Hyun-Bae Lee,Byung-Hoon Jeong,Seok-Hun Hyun,Byung-Chul Kim,In-Chul Jeong,Seong-young Seo,Jun-Ho Shin,Seok-Woo Choi,Ho-Sung Song,Jung-Hwan Choi,Kye-Hyun Kyung,Young-Hyun Jun,Kinam Kim +14 more
TL;DR: A 4Gb DDR3 SDRAM that supports a 1.2V supply voltage and 1.6Gb/s data rate to address the growing need for data bandwidth and capacity in computer systems.