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Featured researches published by Keniti Imamiya.


vlsi test symposium | 1992

Optimum redundancy design for new-generation EPROMs based on yield analysis of previous generation

Keniti Imamiya; Junichi Miyamoto; N. Ohtuska; Naoto Tomita; Yumiko Iyama

Failure modes of 4 Mbit EPROMs have been analyzed, and the model to formulate them is proposed. The redundancy scheme of a 16 Mbit EPROM was optimized by the model in consideration of area penalty. In applying the 4 Mbit data to 16 Mbit EPROM, fabrication line improvement was taken into account. The actual data of 16 Mbit EPROM failure analysis indicate the effectiveness of the prediction. The 16 Mbit EPROM has 2 rows*8 blocks redundancy, and the redundancy gives the highest yield in the time when the mass production begins.<<ETX>>


Archive | 1988

Nonvolatile semiconductor memory having page mode programming function

Keniti Imamiya; Sumio Tanaka; Junichi Miyamoto; Shigeru Atsumi; Nobuaki Ohtsuka; Shinji Saito


Archive | 1990

Address detector of a redundancy memory cell

Keniti Imamiya; Shigeru Atsumi; Sumio Tanaka


Archive | 1988

High voltage switching circuit in a nonvolatile memory

Sumio Tanaka; Shigeru Atsumi; Nobuaki Ohtsuka; Keniti Imamiya


Archive | 1995

Nonvolatile semiconductor memory cell capable of saving overwritten cell and its saving method

Keniti Imamiya; Hiroshi Nakamura


Archive | 1996

Semiconductor memory device with program/erase verification

Hiroshi Nakamura; Junichi Miyamoto; Yoshihisa Iwata; Keniti Imamiya


Archive | 1998

Power-on reset circuit for resetting semiconductor integrated circuit

Keniti Imamiya


Archive | 1995

Semiconductor memory device with a decoding peripheral circuit for improving the operation frequency

Keniti Imamiya; Shinji Miyano; Katsuhiko Sato; Tomoaki Yabe


Archive | 1995

Non-volatile semiconductor memory device capable of preventing excessive-writing

Naohiro Matsukawa; Keniti Imamiya; Toshiharu Watanabe; Michiharu Matsui


Archive | 1988

Reference setting circuit for determining written-in content in nonvolatile semiconductor memories

Keniti Imamiya; Sumio Tanaka; Junichi Miyamoto; Shigeru Atsumi; Yumiko Iyama; Nobuaki Ohtsuka

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