Chip scale package fabrication methods

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United States of America Patent

PATENT NO 7745261
SERIAL NO

12109597

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Embodiments of the present invention includes a method of assembling a chip scale package (CSP). The method comprises adding bumps, sawing the saw streets from the front of a wafer, molding the front of the wafer, grinding the back of the wafer, sawing the saw streets from the back of the wafer, molding the back of the wafer, and sawing between devices to form a plurality of packaged devices. Sawing the saw streets from the front of the wafer establishes a first cut. Molding the front of the wafer includes using a first mold compound such that the mold compound fills in the first cut. Sawing the saw streets from the back of the wafer establishes a second cut.

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Patent Owner(s)

Patent OwnerAddress
SHANGHAI KAIHONG TECHNOLOGY CO LTDNO 1 LANE 18 SAN ZHUANG ROAD EXPORT PROCESSING ZONE SONGJIANG DISTRICT SHANGHAI 201612

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Jun Shanghai, CN 117 350
Tan, Xiaochun Shanghai, CN 42 422

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