Patent
1991-02-11
1992-09-22
Hille, Rolf
357 72, H01L 2312, H01L 2328
Patent
active
051501937
ABSTRACT:
The present invention consists in that a through hole of large area is provided in a die pad or a tab, thereby to prevent a resin from cracking at the rear surface of a surface-packaging resin package in a high-temperature soldering atmosphere of vapor-phase reflow or the like, whereby a resin-molded surface-packaged IC of high reliability is provided.
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Hoshi Akio
Masuda Masachika
Murakami Gen
Nagamine Tooru
Nishi Kunihiko
Clark S. V.
Hille Rolf
Hitachi , Ltd.
Hitachi Tobu Semiconductor Ltd.
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