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Dive into the research topics where Makoto Hatakenaka is active.

Publication


Featured researches published by Makoto Hatakenaka.


IEEE Journal of Solid-state Circuits | 1999

A 5.3-GB/s embedded SDRAM core with slight-boost scheme

Akira Yamazaki; Tadato Yamagata; Makoto Hatakenaka; Atsushi Miyanishi; Isao Hayashi; Shigeki Tomishima; Atsuo Mangyo; Yoshio Yukinari; Takashi Tatsumi; Masashi Matsumura; Kazutami Arimoto; Michihiro Yamada

This paper describes a slight-boost scheme to improve a transistor performance in system large-scale integrated circuits, which integrate logic circuits and 1-Tr/1-C DRAMs. In this scheme, an embedded SDRAM core has been developed for graphic and multimedia applications. Its maximum operating frequency is 166 MHz, with a peak data rate of 5.3 GB/s. As well, a fast row-address access time of 22 ns has been achieved. The SDRAM core has been fabricated by means of a 0.3-/spl mu/m quad-polysilicon, triple metal, triple-well CMOS process. This SDRAM core has a block write function, enhanced by a multiselect block write scheme, and a synchronous direct memory-access test circuit has been implemented to reduce the number of test pads.


Archive | 1998

Multi-bank semiconductor memory device suitable for integration with logic

Tadato Yamagata; Akira Yamazaki; Shigeki Tomishima; Yoshio Yukinari; Makoto Hatakenaka; Atsushi Miyanishi


Archive | 2002

Semiconductor integrated circuit and multi-chip package

Takekazu Yamashita; Makoto Hatakenaka; Manabu Miura


Archive | 1997

Semiconductor integrated circuit device comprising synchronous DRAM core and logic circuit integrated into a single chip and method of testing the synchronous DRAM core

Makoto Hatakenaka; Akira Yamazaki; Shigeki Tomishima; Tadato Yamagata


Archive | 1995

Synchronized clock generating apparatus

Yukio Miyazaki; Takenori Okitaka; Makoto Hatakenaka; Junji Mano


Archive | 1994

Phase-locked circuit and interated circuit device

Makoto Hatakenaka


Archive | 2001

Semiconductor integrated circuit device allowing accurate evaluation of access time of memory core contained therein and access time evaluating method

Manabu Miura; Makoto Hatakenaka


Archive | 2002

Semiconductor device downsizing its built-in driver

Manabu Miura; Makoto Hatakenaka; Takekazu Yamashita


Archive | 1998

Semiconductor integrated circuit device with large internal bus width, including memory and logic circuit

Tadato Yamagata; Makoto Hatakenaka; Shigeki Tomishima; Akira Yamazaki


Archive | 1997

Variable delay circuit for varying delay time and pulse width

Manabu Miura; Makoto Hatakenaka

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