Hanpei KOIKE

Development of an Evaluation Platform and Performance Experimentation of Flex Power FPGA Device
Toshihiro KATASHITA Masakazu HIOKI Yohei HORI Hanpei KOIKE 
Publication:   
Publication Date: 2018/02/01
Vol. E101-D  No. 2  pp. 303-313
Type of Manuscript:  Special Section PAPER (Special Section on Reconfigurable Systems)
Category: Device and Architecture
Keyword: 
FPGA, programmable body biasing, evaluation platform, static power consumption, 
 Summary | Full Text:PDF
Low Overhead Design of Power Reconfigurable FPGA with Fine-Grained Body Biasing on 65-nm SOTB CMOS Technology
Masakazu HIOKI Hanpei KOIKE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/12/01
Vol. E99-D  No. 12  pp. 3082-3089
Type of Manuscript:  PAPER
Category: Computer System
Keyword: 
FPGA, programmable Vt, body biasing, static power, 
 Summary | Full Text:PDF
A 0.7-V Opamp in Scaled Low-Standby-Power FinFET Technology
Shin-ichi O'UCHI Kazuhiko ENDO Takashi MATSUKAWA Yongxun LIU Tadashi NAKAGAWA Yuki ISHIKAWA Junichi TSUKADA Hiromi YAMAUCHI Toshihiro SEKIGAWA Hanpei KOIKE Kunihiro SAKAMOTO Meishoku MASAHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/04/01
Vol. E95-C  No. 4  pp. 686-695
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design – Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
Common-Double-Gate FinFET, Independent-Double-Gate FinFET, common-mode voltage range, low voltage, differential amplifier, source follower, 
 Summary | Full Text:PDF
High-Frequency Precise Characterization of Intrinsic FinFET Channel
Hideo SAKAI Shinichi O'UCHI Takashi MATSUKAWA Kazuhiko ENDO Yongxun LIU Junichi TSUKADA Yuki ISHIKAWA Tadashi NAKAGAWA Toshihiro SEKIGAWA Hanpei KOIKE Kunihiro SAKAMOTO Meishoku MASAHARA Hiroki ISHIKURO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/04/01
Vol. E95-C  No. 4  pp. 752-760
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
FinFET, SOI, De-embedding, RF, device modeling, 
 Summary | Full Text:PDF
FinFET-Based Flex-Vth SRAM Design for Drastic Standby-Leakage-Current Reduction
Shin-ichi O'UCHI Meishoku MASAHARA Kazuhiko ENDO Yongxun LIU Takashi MATSUKAWA Kunihiro SAKAMOTO Toshihiro SEKIGAWA Hanpei KOIKE Eiichi SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/04/01
Vol. E91-C  No. 4  pp. 534-542
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies in Digital LSIs and Memories)
Category: 
Keyword: 
SRAM, FinFET, 4T-FinFET, standby power, dynamic threshold-voltage control, 
 Summary | Full Text:PDF
Optimization of the Body Bias Voltage Set (BBVS) for Flex Power FPGA
Takashi KAWANAMI Masakazu HIOKI Yohei MATSUMOTO Toshiyuki TSUTSUMI Tadashi NAKAGAWA Toshihiro SEKIGAWA Hanpei KOIKE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/12/01
Vol. E90-D  No. 12  pp. 1947-1955
Type of Manuscript:  Special Section PAPER (Special Section on Reconfigurable Systems)
Category: Reconfigurable Device and Design Tools
Keyword: 
FPGA, low-power, threshold voltage control, body bias, 
 Summary | Full Text:PDF
Preliminary Evaluation of Flex Power FPGA: A Power Reconfigurable Architecture with Fine Granularity
Takashi KAWANAMI Masakazu HIOKI Hiroshi NAGASE Toshiyuki TSUTSUMI Tadashi NAKAGAWA Toshihiro SEKIGAWA Hanpei KOIKE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/08/01
Vol. E87-D  No. 8  pp. 2004-2010
Type of Manuscript:  Special Section PAPER (Special Section on Reconfigurable Systems)
Category: Recornfigurable Systems
Keyword: 
FPGA, reconfigurable device, low-power, threshold voltage control, EDA, 
 Summary | Full Text:PDF