Liquid resin composition and semiconductor device

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United States of America Patent

PATENT NO 8722768
APP PUB NO 20130143983A1
SERIAL NO

13817351

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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According to the invention, a liquid resin composition which has favorable wet spreadability after mounting of a chip and exhibits excellent solder cracking resistance even in a high-temperature solder reflow process at about 260° C., i.e., even when being used in lead-free solder, and a semiconductor package using the liquid resin composition are provided. In the liquid resin composition of the invention, an acrylic copolymer having a radical polymerizable functional group contains alkyl(meth)acrylate as a constituent monomer having a linear or branched alkyl group having 6 to 9 carbon atoms in an amount of 10 wt % to 40 wt % of the entire constituent monomers.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO BAKELITE CO LTD5-8 HIGASHI-SHINAGAWA 2-CHOME SHINAGAWA-KU TOKYO 1400002 ?1400002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Makihara, Kouji Kitakyushu, JP 2 4
Murayama, Ryuichi Narashimo, JP 9 25

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