Lead connections means for stacked tab packaged IC chips

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United States of America Patent

PATENT NO 5138438
SERIAL NO

07796873

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In the present invention, memory chips are stuck together in stacked fashion by TAB (tape automated bonding), and a multiple memory chip and lead complex like an SOP (small out-line package) is formed of the chips and leads, whereby a memory module of high packaging density can be realized by a flat packaging technique.

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Patent Owner(s)

  • AKITA ELECTRONICS CO., LTD.;HITACHI, LTD.;HITACHI SEMICONDUCTOR LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Masayuki, Watanabe Yokohama, JP 7 491
Seiichiro, Tsukui Komoro, JP 7 491
Takashi, Ono Akita, JP 10 519
Toshio, Sugano Kokubunji, JP 10 553
Yoshiaki, Wakashima Kawasaki, JP 8 546

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