Method of manufacturing wafer-level chip-size package and...

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Encapsulating

Reexamination Certificate

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Details

C438S106000, C438S110000, C438S613000, C438S113000, C257S787000, C257S788000, C257SE21599, C257SE23124, C257S620000

Reexamination Certificate

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07371618

ABSTRACT:
Provided are a method of manufacturing wafer-level chip-size packages and a molding apparatus suitable for practicing the method whereby a semiconductor wafer having a plurality of semiconductor chips formed thereon may be encapsulated. The semiconductor wafer, typically with a plurality of conductive bumps extending from the semiconductor chips, will be placed in a cavity formed between upper and lower molds. Injection molding of an encapsulant composition or compression molding of encapsulant sheets may then be used to apply encapsulating layers to the upper and lower surfaces of the semiconductor wafer in a substantially simultaneous manner, thereby reducing the likelihood of warping and mechanical damage to the semiconductor wafer. The wafer-level chip-size packages can then be separated from the encapsulated semiconductor wafer.

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patent: 2002-0076838 (2002-10-01), None
Korean Office Action Jul. 7, 2005 for Korean Application No. 2003-0059832 (Complete English translation provided).

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