Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2007-02-06
2007-02-06
Wyszomierski, George (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
C148S513000
Reexamination Certificate
active
10400776
ABSTRACT:
Lead-free solder metal powder material including two or more metals capable of forming an intermetallic compound and having an unreacted phase and an amorphous phase. Further, a lead-free solder paste is prepared by mixing the powder material with a soldering flux. The powder material is preferably formed using a mechanical milling process.
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Bond Schoeneck & King , PLLC
International Business Machines - Corporation
McGuire George R.
Wyszomierski George
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