J
Ji Wang Lee
Researcher at SK Hynix
Publications - 63
Citations - 360
Ji Wang Lee is an academic researcher from SK Hynix. The author has contributed to research in topics: Signal & Clock signal. The author has an hindex of 9, co-authored 63 publications receiving 359 citations. Previous affiliations of Ji Wang Lee include KAIST.
Papers
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Proceedings ArticleDOI
High Frequency Electrical Model of Through Wafer Via for 3-D Stacked Chip Packaging
TL;DR: In this paper, an equivalent circuit model of through wafer via which has height of 90?m and diameter of 75?m was developed based on the physical configuration of through-wafer via.
Patent
Duty cycle correction circuit and semiconductor integrated circuit apparatus including the same
Jae Min Jang,Yong Ju Kim,Sung Woo Han,Hee Woong Song,Ic Su Oh,Hyungsoo Kim,Tae Jin Hwang,Hae Rang Choi,Ji Wang Lee,Changkun Park +9 more
TL;DR: A duty cycle correction circuit includes a phase splitter configured to control a phase of a DLL clock signal to generate a rising clock signal and a falling clock signal, a clock delay unit configured to delay the rising clock signals and the falling clock signals in response to control signals.
Patent
Duty cycle correction apparatus and semiconductor integrated circuit having the same
Jae Min Jang,Yong Ju Kim,Sung Woo Han,Hee Woong Song,Ic Su Oh,Hyungsoo Kim,Tae Jin Hwang,Hae Rang Choi,Ji Wang Lee,Changkun Park +9 more
TL;DR: A duty cycle correction apparatus includes a fixed delay unit, a variable delay unit and a delay control unit as discussed by the authors, which is used to detect duty cycles of the correction rising clock signal and the correction falling clock signal.
Patent
Data output circuit
Yong Ju Kim,Sung Woo Han,Hee Woong Song,Ic Su Oh,Hyungsoo Kim,Tae Jin Hwang,Hae Rang Choi,Ji Wang Lee,Jae Min Jang,Changkun Park +9 more
TL;DR: In this paper, a data output circuit includes a control signal generation block configured to generate a first transfer control signal which is produced in a first read operation and a second transfer control message which is generated in a second read operation.
Patent
Power noise detecting device and power noise control device using the same
Hyungsoo Kim,Yong-Ju Kim,Sung-Woo Han,Hee-Woong Song,Ic-Su Oh,Tae-jin Hwang,Hae-Rang Choi,Ji Wang Lee,Jae-Min Jang,Changkun Park +9 more
TL;DR: In this article, a power noise detecting device includes a plurality of power lines, and a part configured to detect power noise by rectifying voltages of the power lines and converting the rectified voltages into effective voltages.