Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-09-06
2010-11-02
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S842000, C029S844000, C029S874000, C029S884000
Reexamination Certificate
active
07823278
ABSTRACT:
An interposer having one or more hollow electrical contact buttons disposed in a carrier. The interposer is formed by disposing sacrificial posts in vias of the carrier. The electrical contact buttons are formed on the sacrificial posts by a metallizing process in desired pattern using a mask. The sacrificial posts are made of a material that thermally decomposes upon application of heat without altering the carrier or the electrical contact buttons.
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Fogel Keith E
Goma Sherif
Hougham Gareth G
Lauro Paul A
Rosner Joanna
International Business Machines - Corporation
Morris, IBM Attorney Daniel P.
Ohlandt Greeley Ruggiero & Perle LLP
Phan Thiem
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