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Dive into the research topics where Ki Chang Kwean is active.

Publication


Featured researches published by Ki Chang Kwean.


international solid-state circuits conference | 2006

A 2.5Gb/s/pin 256Mb GDDR3 SDRAM with Series Pipelined CAS Latency Control and Dual-Loop Digital DLL

Dong Uk Lee; Hyun Woo Lee; Ki Chang Kwean; Young Kyoung Choi; Hyong Uk Moon; Seung Wook Kwack; Shin Deok Kang; Kwan Weon Kim; Yong Ju Kim; Young Jung Choi; Patrik B. Moran; Jin Hong Ahn; Joong Sik Kih

A series pipelined CAS latency control with voltage-controlled delay line that extends maximum data rate to 2.5Gb/s/pin at 1.7V, is presented. Other schemes applied in the DLL are dual loop control that increases power noise immunity and LPDCC that achieves low power consumption. All these schemes are implemented in a 8M times 32 device using a 0.10 mum DRAM process


Archive | 2004

Auto refresh control circuit of semiconductor memory device

Ki Chang Kwean


Archive | 2010

REPAIR CIRCUIT AND REPAIR METHOD OF SEMICONDUCTOR MEMORY APPARATUS

Je Yoon Kim; Ki Chang Kwean


Archive | 2005

Data output device and method of semiconductor device

Seung Wook Kwack; Ki Chang Kwean


Archive | 2004

Semiconductor memory device for reducing current consumption in operation

Shin Deok Kang; Ki Chang Kwean


Archive | 2005

Voltage up converter

Ki Chang Kwean


Archive | 2008

Data input circuit of semiconductor memory apparatus and method of inputting the data

Ki Chang Kwean


Archive | 2008

Step-up voltage generator for semiconductor memory and method for controlling the same

Ki Chang Kwean


Archive | 2015

STROBE SIGNAL GENERATION DEVICE AND MEMORY APPARATUS USING THE SAME

Hee Jin Byun; Ki Chang Kwean


Archive | 2007

Data acceleration device and data transmission apparatus using the same

Ki Chang Kwean

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