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Featured researches published by Yasuyuki Matsuoka.


symposium on vlsi technology | 2007

Bit Cost Scalable Technology with Punch and Plug Process for Ultra High Density Flash Memory

Hiroyasu Tanaka; Masaru Kido; K. Yahashi; M. Oomura; Ryota Katsumata; Masaru Kito; Yoshiaki Fukuzumi; Masaki Sato; Y. Nagata; Yasuyuki Matsuoka; Yoshihisa Iwata; Hideaki Aochi; Akihiro Nitayama

We propose Bit-Cost Scalable (BiCS) technology which realizes a multi-stacked memory array with a few constant critical lithography steps regardless of number of stacked layer to keep a continuous reduction of bit cost. In this technology, whole stack of electrode plate is punched through and plugged by another electrode material. SONOS type flash technology is successfully applied to achieve BiCS flash memory. Its cell array concept, fabrication process and characteristics of key features are presented.


Archive | 2009

Non-volatile semiconductor storage device and method of manufacturing the same

Yoshiaki Fukuzumi; Ryota Katsumata; Masaru Kito; Hiroyasu Tanaka; Masaru Kidoh; Yosuke Komori; Megumi Ishiduki; Akihiro Nitayama; Hideaki Aochi; Hitoshi Ito; Yasuyuki Matsuoka


international electron devices meeting | 2007

Optimal Integration and Characteristics of Vertical Array Devices for Ultra-High Density, Bit-Cost Scalable Flash Memory

Yoshiaki Fukuzumi; Yasuyuki Matsuoka; Masaru Kito; Masaru Kido; Masaki Sato; Hiroyasu Tanaka; Y. Nagata; Yoshihisa Iwata; Hideaki Aochi; Akihiro Nitayama


Archive | 2007

MEMORY SYSTEM, SEMICONDUCTOR MEMORY DEVICE AND METHOD OF DRIVING SAME

Ryota Katsumata; Masaru Kidoh; Hiroyasu Tanaka; Masaru Kito; Hideaki Aochi; Yoshiaki Fukuzumi; Yasuyuki Matsuoka


Archive | 2008

NONVOLATILE SEMICONDUCTOR MEMORY AND METHOD FOR MANUFACTURING THE SAME

Masaru Kidoh; Ryota Katsumata; Masaru Kito; Yoshiaki Fukuzumi; Hideaki Aochi; Hiroyasu Tanaka; Yasuyuki Matsuoka; Yoshio Ozawa; Mitsuru Sato


Archive | 2009

Nonvolatile semiconductor storage device and manufacturing method thereof

Masaru Kidoh; Masaru Kito; Ryota Katsumata; Yoshiaki Fukuzumi; Hiroyasu Tanaka; Megumi Ishiduki; Yosuke Komori; Hideaki Aochi; Yasuyuki Matsuoka


Archive | 2009

Non-volatile semiconductor memory device and method of manufacturing the same

Yosuke Komori; Masaru Kito; Megumi Ishiduki; Ryota Katsumata; Hiroyasu Tanaka; Masaru Kidoh; Yoshiaki Fukuzumi; Hideaki Aochi; Yasuyuki Matsuoka


Archive | 2011

Nonvolatile semicondutor memory device and manufacturing method thereof

Masaru Kito; Hideaki Aochi; Ryota Katsumata; Akihiro Nitayama; Masaru Kidoh; Hiroyasu Tanaka; Yoshiaki Fukuzumi; Yasuyuki Matsuoka; Mitsuru Sato


Archive | 2009

Nonvolatile semiconductor storage device including a plurality of memory strings

Masaru Kidoh; Masaru Kito; Ryota Katsumata; Yoshiaki Fukuzumi; Hiroyasu Tanaka; Megumi Ishiduki; Yosuke Komori; Hideaki Aochi; Akihiro Nitayama; Hitoshi Ito; Yasuyuki Matsuoka


Archive | 2007

Memory system, semiconductor memory and its driving method

Hideaki Aochi; Yoshiaki Fukuzumi; Ryuta Katsumata; Masaru Kito; Takashi Kito; Yasuyuki Matsuoka; Hiroyasu Tanaka

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