Leadless semiconductor chip carrier system

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Making plural separate devices

Reexamination Certificate

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C257S737000, C257SE21499

Reexamination Certificate

active

08039311

ABSTRACT:
A semiconductor package system includes: providing a semiconductor die with bonding pad on the semiconductor die; attaching the semiconductor die to an intermediate layer; attaching one end of a bonding wire to the bonding pad; forming a bonding ball at the other end of the bonding wire, the bonding ball being fully or partially embedded in the intermediate layer; encapsulating the semiconductor die, the bonding pad, the bonding wire, and a portion of the bonding ball with a mold compound; removing the intermediate layer, resulting in the bonding ball protruding from the exposed mold compound bottom surface; and conditioning the bonding ball.

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patent: 2009/0174052 (2009-07-01), Sogawa et al.

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