Tadashi YASUFUKU


Power Supply Voltage Dependence of Within-Die Delay Variation of Regular Manual Layout and Irregular Place-and-Route Layout
Tadashi YASUFUKU Yasumi NAKAMURA Zhe PIAO Makoto TAKAMIYA Takayasu SAKURAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/06/01
Vol. E94-C  No. 6  pp. 1072-1075
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
within-die delay variationdesign methodologylow voltage
 Summary | Full Text:PDF

Difficulty of Power Supply Voltage Scaling in Large Scale Subthreshold Logic Circuits
Tadashi YASUFUKU Taro NIIYAMA Zhe PIAO Koichi ISHIDA Masami MURAKATA Makoto TAKAMIYA Takayasu SAKURAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/03/01
Vol. E93-C  No. 3  pp. 332-339
Type of Manuscript:  Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
Category: 
Keyword: 
minimum operating voltagesubthresholdlogicvariationsbody bias
 Summary | Full Text:PDF

Inductor and TSV Design of 20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories
Tadashi YASUFUKU Koichi ISHIDA Shinji MIYAMOTO Hiroto NAKAI Makoto TAKAMIYA Takayasu SAKURAI Ken TAKEUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/03/01
Vol. E93-C  No. 3  pp. 317-323
Type of Manuscript:  Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
Category: 
Keyword: 
SSDboost convertercharge pumpinductor designTSV's
 Summary | Full Text:PDF