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Dive into the research topics where Keizo Aoyama is active.

Publication


Featured researches published by Keizo Aoyama.


Microelectronics Reliability | 1987

4587639 Static semiconductor memory device incorporating redundancy memory cells

Keizo Aoyama; Teruo Seki; Takahik Yamauchi

In a static semiconductor memory device incorporating redundancy memory cells (CR0, CR1, . . . ), a connecting/disconnecting circuit is linked between a power supply terminal (VCC) and one of bit lines (B0, B0, . . . ), thereby reducing or cutting off a current flowing through a defective memory cell.


Archive | 1989

Dual port type semiconductor memory device realizing a high speed read operation

Keizo Aoyama


Archive | 1983

Static memory circuit

Eiji Noguchi; Keizo Aoyama


Archive | 1986

Regulated power supply for semiconductor chips with compensation for changes in electrical characteristics or chips and in external power supply

Keizo Aoyama


Archive | 1984

Static semiconductor memory device incorporating redundancy memory cells

Keizo Aoyama; Teruo Seki; Takahiko Yamauchi


Archive | 1983

Time-switch circuit

Takeshi Sampei; Norio Miyahara; Tadanobu Nikaido; Hiroaki Sato; Keizo Aoyama


Archive | 1987

Semiconductor memory device with switching for redundant cells

Keizo Aoyama


Archive | 1982

Semiconductor memory device with redundant cells

Takahiko Yamauchi; Teruo Seki; Keizo Aoyama


Archive | 1983

Static-type random-access memory device

Keizo Aoyama; Takahiko Yamauchi; Teruo Seki


Archive | 1988

Semiconductor memory device having sense amplifiers with different driving abilities

Keizo Aoyama

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