Ball film for integrated circuit fabrication and testing

Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material

Reexamination Certificate

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Details

C438S614000, C257SE21508

Reexamination Certificate

active

07452799

ABSTRACT:
According to one embodiment of the invention, a method of fabricating ball grid array packages includes providing a substrate, providing a ball film that includes a plurality of metal balls movably contained within respective slots of a thin film, coupling the metal balls to the substrate, and removing the thin film from the metal balls.

REFERENCES:
patent: 5219117 (1993-06-01), Lin
patent: 5861323 (1999-01-01), Hayes
patent: 6025258 (2000-02-01), Ochiai et al.
patent: 6426564 (2002-07-01), Ball
patent: 2001/0041437 (2001-11-01), Cobbley et al.

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