Leadframe semiconductor integrated circuit device using the same, and method of and process for fabricating the two

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United States of America Patent

PATENT NO RE43443
SERIAL NO

09987978

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Abstract

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In order to improve the package body cracking resistance of an LSI package at the reflow soldering and to provide both a leadframe suitable for fabricating the LSI package according to the flexible manufacturing system and an LSI using the leadframe, the adhered area between a semiconductor chip 2 and a resin is enlarged by making the external size of a die pad 3 smaller than that of the semiconductor chip to be mounted thereon. Moreover, a variety of semiconductor chips 2 having different external sizes can be mounted on the die pad 3 by cutting the leading ends of leads 5 to a suitable length in accordance with the external sizes of the semiconductor chips 2.

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Patent Owner(s)

Patent OwnerAddress
RENESAS ELECTRONICS CORPORATION2-24 TOYOSU 3-CHOME KOTO-KU TOKYO 135-0061

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kajihara, Yujiro Hachiouji, JP 3 133
Kawai, Sueo Iwama-machi, JP 40 889
Miyaki, Yoshinori Tachikawa, JP 41 552
Naito, Takahiro Kodaira, JP 80 1507
Suzuki, Hiromichi Tokyo, JP 127 1931
Suzuki, Kazunari Tokyo, JP 83 1546
Tsubosaki, Kunihiro Hino, JP 99 1825

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