Etching a substrate: processes – Forming or treating electrical conductor article – Repairing circuit
Reexamination Certificate
2005-01-04
2005-01-04
Mills, Gregory (Department: 1763)
Etching a substrate: processes
Forming or treating electrical conductor article
Repairing circuit
C438S004000
Reexamination Certificate
active
06838009
ABSTRACT:
A method and apparatus are provided for reworking of finishing metallurgy on pads of electronic components. The pads are copper or copper
ickel and have a layer of nickel thereon and an overlying layer of gold. The gold layer is removed first followed by the nickel layer and then the component is treated to remove etch and corrosion products. Media blasting is then used to restore the pads to their original condition as on prime parts. The pads are then replated using conventional nickel and gold plating solutions to form the reworked component.
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Arvin Charles L.
Berger Daniel G.
Liu Hsichang
Semkow Krystyna W.
Blecker Ira D.
Culbert Robert
DeLio & Peterson LLC
Mills Gregory
Tomaszewski John J.
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