Tadashi Yasufuku

19 papers A* 1A 3Journal 8Unranked 7
YearRankTypeTitle / Venue / Authors
2026 J jnl
A 25-Mpts/s Back-Illuminated Stacked SPAD Direct Time-of-Flight Depth Sensor With Equivalent Time Sampling and Pixel-Level Threshold Control for Automotive LiDAR.
IEEE J. Solid State Circuits
Tatsuya Yui, Katsuhiko Hanzawa, Masahiro Hosoya, Yuqing Liu, Tadashi Yasufuku, Yoshinori Tanaka, Yoshiaki Tashiro, Albert Tumewu, Masataka Yamane, Masatoshi Shibata, Toshiki Sakada, Kazuhisa Akatsuka, Yudai Matsushita, Koki Yamada, Kouji Mori, Takahiro Toyoshima, Yorito Sakano, Oichi Kumagai, Kenichi Tsunoji, Masayuki Takahashi
2018 — conf
A 512Gb 3b/Cell 3D flash memory on a 96-word-line-layer technology.
ISSCC
Hiroshi Maejima, Kazushige Kanda, Susumu Fujimura, Teruo Takagiwa, Susumu Ozawa, Jumpei Sato, Yoshihiko Shindo, Manabu Sato, Naoaki Kanagawa, Junji Musha, Satoshi Inoue, Katsuaki Sakurai, Naohito Morozumi, Ryo Fukuda, Yuui Shimizu, Toshifumi Hashimoto, Xu Li, Yuki Shimizu, Kenichi Abe, Tadashi Yasufuku, Takatoshi Minamoto, Hiroshi Yoshihara, Takahiro Yamashita, Kazuhiko Satou, Takahiro Sugimoto, Fumihiro Kono, Mitsuhiro Abe, Tomoharu Hashiguchi, Masatsugu Kojima, Yasuhiro Suematsu, Takahiro Shimizu, Akihiro Imamoto, Naoki Kobayashi, Makoto Miakashi, Kouichirou Yamaguchi, Sanad Bushnaq, Hicham Haibi, Masatsugu Ogawa, Yusuke Ochi, Kenro Kubota, Taichi Wakui, Dong He, Weihan Wang, Hiroe Minagawa, Tomoko Nishiuchi, Hao Nguyen, Kwang-Ho Kim, Ken Cheah, Yee Lih Koh, Feng Lu, Venky Ramachandra, Srinivas Rajendra, Steve Choi, Keyur Payak, Namas Raghunathan, Spiros Georgakis, Hiroshi Sugawara, Seungpil Lee, Takuya Futatsuyama, Koji Hosono, Noboru Shibata, Toshiki Hisada, Tetsuya Kaneko, Hiroshi Nakamura
2013 J jnl
Minimizing Energy of Integer Unit by Higher Voltage Flip-Flop: V
IEEE Trans. Very Large Scale Integr. Syst.
Hiroshi Fuketa, Koji Hirairi, Tadashi Yasufuku, Makoto Takamiya, Masahiro Nomura, Hirofumi Shinohara, Takayasu Sakurai
2012 — conf
13% Power reduction in 16b integer unit in 40nm CMOS by adaptive power supply voltage control with parity-based error prediction and detection (PEPD) and fully integrated digital LDO.
ISSCC
Koji Hirairi, Yasuyuki Okuma, Hiroshi Fuketa, Tadashi Yasufuku, Makoto Takamiya, Masahiro Nomura, Hirofumi Shinohara, Takayasu Sakurai
2012 — conf
24% Power reduction by post-fabrication dual supply voltage control of 64 voltage domains in V
ISQED
Tadashi Yasufuku, Koji Hirairi, Yu Pu, Yun Fei Zheng, Ryo Takahashi, Masato Sasaki, Hiroshi Fuketa, Atsushi Muramatsu, Masahiro Nomura, Hirofumi Shinohara, Makoto Takamiya, Takayasu Sakurai
2012 J jnl
Large Within-Die Gate Delay Variations in Sub-Threshold Logic Circuits at Low Temperature.
IEEE Trans. Circuits Syst. II Express Briefs
Ryo Takahashi, Hidehiro Takata, Tadashi Yasufuku, Hiroshi Fuketa, Makoto Takamiya, Masahiro Nomura, Hirofumi Shinohara, Takayasu Sakurai
2011 J jnl
1.8 V Low-Transient-Energy Adaptive Program-Voltage Generator Based on Boost Converter for 3D-Integrated NAND Flash SSD.
IEEE J. Solid State Circuits
Koichi Ishida, Tadashi Yasufuku, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai, Ken Takeuchi
2011 — conf
12% Power reduction by within-functional-block fine-grained adaptive dual supply voltage control in logic circuits with 42 voltage domains.
ESSCIRC
Atsushi Muramatsu, Tadashi Yasufuku, Masahiro Nomura, Makoto Takamiya, Hirofumi Shinohara, Takayasu Sakurai
2011 A conf
12.7-times energy efficiency increase of 16-bit integer unit by power supply voltage (V
ISLPED
Hiroshi Fuketa, Koji Hirairi, Tadashi Yasufuku, Makoto Takamiya, Masahiro Nomura, Hirofumi Shinohara, Takayasu Sakurai
2011 A* conf
A closed-form expression for estimating minimum operating voltage (V
DAC
Hiroshi Fuketa, Satoshi Iida, Tadashi Yasufuku, Makoto Takamiya, Masahiro Nomura, Hirofumi Shinohara, Takayasu Sakurai
2011 A conf
Investigation of determinant factors of minimum operating voltage of logic gates in 65-nm CMOS.
ISLPED
Tadashi Yasufuku, Satoshi Iida, Hiroshi Fuketa, Koji Hirairi, Masahiro Nomura, Makoto Takamiya, Takayasu Sakurai
2011 J jnl
Power Supply Voltage Dependence of Within-Die Delay Variation of Regular Manual Layout and Irregular Place-and-Route Layout.
IEICE Trans. Electron.
Tadashi Yasufuku, Yasumi Nakamura, Piao Zhe, Makoto Takamiya, Takayasu Sakurai
2010 J jnl
Difficulty of Power Supply Voltage Scaling in Large Scale Subthreshold Logic Circuits.
IEICE Trans. Electron.
Tadashi Yasufuku, Taro Niiyama, Piao Zhe, Koichi Ishida, Masami Murakata, Makoto Takamiya, Takayasu Sakurai
2010 J jnl
Inductor and TSV Design of 20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories.
IEICE Trans. Electron.
Tadashi Yasufuku, Koichi Ishida, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai, Ken Takeuchi
2010 J jnl
Stretchable EMI Measurement Sheet With 8 ˟ 8 Coil Array, 2 V Organic CMOS Decoder, and 0.18 μ m Silicon CMOS LSIs for Electric and Magnetic Field Detection.
IEEE J. Solid State Circuits
Koichi Ishida, Naoki Masunaga, Zhiwei Zhou, Tadashi Yasufuku, Tsuyoshi Sekitani, Ute Zschieschang, Hagen Klauk, Makoto Takamiya, Takao Someya, Takayasu Sakurai
2009 — conf
A 1.8V 30nJ adaptive program-voltage (20V) generator for 3D-integrated NAND flash SSD.
ISSCC
Koichi Ishida, Tadashi Yasufuku, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai, Ken Takeuchi
2009 — conf
A stretchable EMI measurement sheet with 8×8 coil array, 2V organic CMOS decoder, and -70dBm EMI detection circuits in 0.18¼m CMOS.
ISSCC
Koichi Ishida, Naoki Masunaga, Zhiwei Zhou, Tadashi Yasufuku, Tsuyoshi Sekitani, Ute Zschieschang, Hagen Klauk, Makoto Takamiya, Takao Someya, Takayasu Sakurai
2009 — conf
Effect of resistance of TSV's on performance of boost converter for low power 3D SSD with NAND flash memories.
3DIC
Tadashi Yasufuku, Koichi Ishida, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai, Ken Takeuchi
2009 A conf
Inductor design of 20-V boost converter for low power 3D solid state drive with NAND flash memories.
ISLPED
Tadashi Yasufuku, Koichi Ishida, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai, Ken Takeuchi