Osamu Hirabayashi

Fumihiko Tachibana, Osamu Hirabayashi, Yasuhisa Takeyama, Miyako Shizuno, Atsushi Kawasumi, Keiichi Kushida, Azuma Suzuki, Yusuke Niki, Shinichi Sasaki, Tomoaki Yabe, Yasuo Unekawa: A 27% active and 85% standby power reduction in dual-power-supply SRAM using BL power calculator and digitally controllable retention circuit. ISSCC 2013: 320-321

Yusuke Niki, Atsushi Kawasumi, Azuma Suzuki, Yasuhisa Takeyama, Osamu Hirabayashi, Keiichi Kushida, Fumihiko Tachibana, Yuki Fujimura, Tomoaki Yabe: A Digitized Replica Bitline Delay Technique for Random-Variation-Tolerant Timing Generation of SRAM Sense Amplifiers. J. Solid-State Circuits 46(11): 2545-2551 (2011)

Atsushi Kawasumi, Yasuhisa Takeyama, Osamu Hirabayashi, Keiichi Kushida, Yuki Fujimura, Tomoaki Yabe: A Low-Supply-Voltage-Operation SRAM With HCI Trimmed Sense Amplifiers. J. Solid-State Circuits 45(11): 2341-2347 (2010)

Yuki Fujimura, Osamu Hirabayashi, Takahiko Sasaki, Azuma Suzuki, Atsushi Kawasumi, Yasuhisa Takeyama, Keiichi Kushida, Gou Fukano, Akira Katayama, Yusuke Niki, Tomoaki Yabe: A configurable SRAM with constant-negative-level write buffer for low-voltage operation with 0.149µm² cell in 32nm high-k metal-gate CMOS. ISSCC 2010: 348-349

Osamu Hirabayashi, Atsushi Kawasumi, Azuma Suzuki, Yasuhisa Takeyama, Keiichi Kushida, Takahiko Sasaki, Akira Katayama, Gou Fukano, Yuki Fujimura, Takaaki Nakazato, Yasushi Shizuki, Natsuki Kushiyama, Tomoaki Yabe: A process-variation-tolerant dual-power-supply SRAM with 0.179µm² Cell in 40nm CMOS using level-programmable wordline driver. ISSCC 2009: 458-459

Akira Katayama, Tomoaki Yabe, Osamu Hirabayashi, Yasuhisa Takeyama, Keiichi Kushida, Takahiko Sasaki, Nobuaki Otsuka: Direct Cell-Stability Test Techniques for an SRAM Macro with Asymmetric Cell-Bias-Voltage Modulation. ITC 2008: 1-7

Osamu Hirabayashi, Azuma Suzuki, Tomoaki Yabe, Atsushi Kawasumi, Yasuhisa Takeyama, Keiichi Kushida, A. Tohata, Nobuaki Otsuka: DFT Techniques for Wafer-Level At-Speed Testing of High-Speed SRAMs. ITC 2002: 164-169