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Dive into the research topics where Yasushi Kasa is active.

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Featured researches published by Yasushi Kasa.


symposium on vlsi circuits | 1996

A 2.7 V only 8 Mb/spl times/16 NOR flash memory

Johnny Chen; Tiao-Hua Kuo; Lee Cleveland; C.K. Chung; Nancy Leong; Yong K. Kim; Takao Akaogi; Yasushi Kasa

This paper describes a 80 ns, 2.7 V to 3.6 V single voltage supply 8 Mb/spl times/16 flash memory. It uses a high speed Vcc detector to control the wordline boost level and an intelligent programming algorithm to optimize the program time. Erase is achieved by a new low Vcc negative charge pump. The device is fabricated using a 0.5 /spl mu/m design rule, double layer metal, dual layer polysilicon, and triple well CMOS. The single transistor cell size is 1.7/spl times/1.7 /spl mu/m/sup 2/. The memory cell uses a conventional drain side channel hot electron for programming and negative gate Fowler-Nordheim tunneling on the source side for erase.


Archive | 1999

Write protect input implementation for a simultaneous operation flash memory device

Tiao-Hua Kuo; Yasushi Kasa; Johnny Chen


Archive | 2001

Bank selector circuit for a simultaneous operation flash memory device with a flexible bank partition architecture

Tiao-Hua Kuo; Yasushi Kasa; Nancy Leong; Johnny Chen; Michael A. Van Buskirk


Archive | 2000

Redundant dual bank architecture for a simultaneous operation flash memory

Yasushi Kasa; Guowei Wang


Archive | 1999

Memory address decoding circuit for a simultaneous operation flash memory device with a flexible bank partition architecture

Tiao-Hua Kuo; Yasushi Kasa; Nancy Leong; Johnny Chen; Michael A. Van Buskirk


Archive | 1999

OTP sector double protection for a simultaneous operation flash memory

Yasushi Kasa; Johnny Chen; Guowei Wang; Tiao-Hua Kuo


Archive | 2000

Architecture for a dual-bank page mode memory with redundancy

Yasushi Kasa; Ming-Huei Shing


Archive | 1998

Simultaneous operation flash memory device with a flexible bank partition architecture

Tiao-Hua Kuo; Yasushi Kasa; Nancy Leong; Johnny Chen; Michael A. Van Buskirk


Archive | 1998

VT reference voltage for extremely low power supply

Yong K. Kim; Yasushi Kasa


Archive | 1999

Method of making flexibly partitioned metal line segments for a simultaneous operation flash memory device with a flexible bank partition architecture

Tiao-Hua Kuo; Yasushi Kasa; Nancy Leong; Johnny Chen; Michael A. Van Buskirk

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Johnny Chen

Advanced Micro Devices

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Nancy Leong

Advanced Micro Devices

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Guowei Wang

Advanced Micro Devices

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Yong K. Kim

Advanced Micro Devices

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C.K. Chung

Advanced Micro Devices

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Fan W. Lai

Advanced Micro Devices

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