Chip package

Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Bump leads

Reexamination Certificate

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C257S738000, C257S777000, C257SE23141, C257SE23021

Reexamination Certificate

active

07964961

ABSTRACT:
A chip package includes a semiconductor chip, a flexible circuit film and a substrate. The substrate has a circuit structure in the substrate. The flexible circuit film is connected to the circuit structure of the substrate through metal joints, an anisotropic conductive film or wireboning wires. The semiconductor chip has fine-pitched metal bumps having a thickness of between 5 and 50 micrometers, and preferably of between 10 and 25 micrometers, and the semiconductor chip is joined with the flexible circuit film by the fine-pitched metal bumps using a chip-on-film (COF) technology or tape-automated-bonding (TAB) technology. A pitch of the neighboring metal bumps is less than 35 micrometers, such as between 10 and 30 micrometers.

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