Koutaro HACHIYA


Impact of Self-Heating in Wire Interconnection on Timing
Toshiki KANAMOTO  Takaaki OKUMURA  Katsuhiro FURUKAWA  Hiroshi TAKAFUJI  Atsushi KUROKAWA  Koutaro HACHIYA  Tsuyoshi SAKATA  Masakazu TANAKA  Hidenari NAKASHIMA  Hiroo MASUDA  Takashi SATO  Masanori HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/03/01
Vol. E93-C  No. 3  pp. 388-392
Type of Manuscript: BRIEF PAPER
Category: 
Keyword: 
interconnectdelay variationparasitic resistancethermaltemperatureself-heatSoC
  Summary |  Full Text:PDF (219.6KB)

An Approach for Reducing Leakage Current Variation due to Manufacturing Variability
Tsuyoshi SAKATA  Takaaki OKUMURA  Atsushi KUROKAWA  Hidenari NAKASHIMA  Hiroo MASUDA  Takashi SATO  Masanori HASHIMOTO  Koutaro HACHIYA  Katsuhiro FURUKAWA  Masakazu TANAKA  Hiroshi TAKAFUJI  Toshiki KANAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3016-3023
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Device and Circuit Modeling and Analysis
Keyword: 
low powerleakagegate delay modelvariation
  Summary |  Full Text:PDF (1.1MB)

Fast Methods to Estimate Clock Jitter due to Power Supply Noise
Koutaro HACHIYA  Takayuki OHSHIMA  Hidenari NAKASHIMA  Masaaki SODA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/04/01
Vol. E90-A  No. 4  pp. 741-747
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 19th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
clock jitterpower supply noiseclock distribution networkpower distribution network
  Summary |  Full Text:PDF (500.7KB)

Impact of Intrinsic Parasitic Extraction Errors on Timing and Noise Estimation
Toshiki KANAMOTO  Shigekiyo AKUTSU  Tamiyo NAKABAYASHI  Takahiro ICHINOMIYA  Koutaro HACHIYA  Atsushi KUROKAWA  Hiroshi ISHIKAWA  Sakae MUROMOTO  Hiroyuki KOBAYASHI  Masanori HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/12/01
Vol. E89-A  No. 12  pp. 3666-3670
Type of Manuscript: Special Section LETTER (Special Section on VLSI Design and CAD Algorithms)
Category: Interconnect
Keyword: 
interconnectdelay variationparasitic capacitanceSoC
  Summary |  Full Text:PDF (434.3KB)

A Method to Derive SSO Design Rule Considering Jitter Constraint
Koutaro HACHIYA  Hiroyuki KOBAYASHI  Takaaki OKUMURA  Takashi SATO  Hiroki OKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/04/01
Vol. E89-A  No. 4  pp. 865-872
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
simultaneous switching outputsimultaneous switching noisejitterASIC
  Summary |  Full Text:PDF (438.4KB)

On-Chip Thermal Gradient Analysis and Temperature Flattening for SoC Design
Takashi SATO  Junji ICHIMIYA  Nobuto ONO  Koutaro HACHIYA  Masanori HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/12/01
Vol. E88-A  No. 12  pp. 3382-3389
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Prediction and Analysis
Keyword: 
thermal simulationthermal gradienttemperature flatteningclock skewreliabilitytiming
  Summary |  Full Text:PDF (961.5KB)