Y
Yong-Ki Cho
Researcher at Samsung
Publications - 5
Citations - 90
Yong-Ki Cho is an academic researcher from Samsung. The author has contributed to research in topics: Signal & Phase-locked loop. The author has an hindex of 4, co-authored 5 publications receiving 88 citations.
Papers
More filters
Journal ArticleDOI
A 7 Gb/s/pin 1 Gbit GDDR5 SDRAM With 2.5 ns Bank to Bank Active Time and No Bank Group Restriction
Tae-Young Oh,Young-Soo Sohn,Seung-Jun Bae,Min-Sang Park,Ji-Hoon Lim,Yong-Ki Cho,Dae Hyun Kim,Dong-Min Kim,Hye-Ran Kim,Hyun-Joong Kim,Jin-Hyun Kim,Jin-Kook Kim,Young-Sik Kim,Byeong-Cheol Kim,Sang-hyup Kwak,Jae-Hyung Lee,Jae-Young Lee,Chang-Ho Shin,Yun-Seok Yang,Beom-Sig Cho,Sam-Young Bang,Hyang-ja Yang,Young-Ryeol Choi,Gil-Shin Moon,Cheol-Goo Park,Seok-Won Hwang,Jeong-Don Lim,Kwang-Il Park,Joo Sun Choi,Young-Hyun Jun +29 more
TL;DR: To realize the enhanced bank access flexibility, this DRAM employs the following techniques: skewed control logic, PVT variation compensated IO sense amplifier with auto calibration by replica impedance monitor, FIFO based BLSA enable signal generator, low latency VPP generator and active jitter canceller.
Proceedings ArticleDOI
A 40nm 2Gb 7Gb/s/pin GDDR5 SDRAM with a programmable DQ ordering crosstalk equalizer and adjustable clock-tracking BW
Seung-Jun Bae,Young-Soo Sohn,Tae-Young Oh,Si-Hong Kim,Yun-Seok Yang,Dae Hyun Kim,Sang-hyup Kwak,Ho-Seok Seol,Chang-Ho Shin,Min-Sang Park,Gong-Heom Han,Byeong-Cheol Kim,Yong-Ki Cho,Hye-Ran Kim,Su-Yeon Doo,Young-Sik Kim,Dong-seok Kang,Young-Ryeol Choi,Sam-Young Bang,sunyoung park,Yong-Jae Shin,Gil-Shin Moon,Cheol-Goo Park,Woo-Seop Kim,Hyang-ja Yang,Jeong-Don Lim,Kwang-Il Park,Joo Sun Choi,Young-Hyun Jun +28 more
TL;DR: A channel crosstalk equalizer with programmable signal ordering capability for the DRAM transmitter is presented and tri-mode clocking is addressed to reduce the system jitter for better timing margin: PLL off, LC-PLL and injection-locked oscillator.
Patent
Impedance calibration circuit and semiconductor device including the same
TL;DR: In this paper, an impedance calibration circuit with a variable reference voltage generation unit was proposed to maximize the number of semiconductor devices that can be tested in test equipment at one time and permit the operation of an impedance matching unit (e.g., an on-die termination (ODT) circuit and/or an off-chip-driver) to be tested for a variety of reference resistor values.
Patent
Data receiver circuit and method of adaptively controlling equalization coefficients using the same
Won-Hwa Shin,Yong-Ki Cho +1 more
TL;DR: In this article, a data receiver circuit includes n sampling receivers, n decision feedback equalizer (DFE) circuits, and a data recovery circuit, which is configured to select one of the n respective pre-recovery signals, and output the selected n pre recovery signal as a recovered input signal.
Patent
Semiconductor memory device and memory system including the same
Yong-Ki Cho,Du-Yeul Kim +1 more
TL;DR: In this article, a semiconductor memory device includes a digital noise measurement circuit and an output selection circuit, which selects a first operation voltage among a plurality of operation voltages based on a voltage selection signal and outputs the first noise data.