Metal treatment – Process of modifying or maintaining internal physical... – Producing or treating layered – bonded – welded – or...
Reexamination Certificate
2006-05-09
2006-05-09
Ip, Sikyin (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Producing or treating layered, bonded, welded, or...
C148S442000, C148S400000, C420S558000, C420S570000, C420S589000, C228S121000, C228S123100
Reexamination Certificate
active
07041180
ABSTRACT:
A method of joining workpieces using a solder alloy. The alloy contains either at least 1% or a maximum of about 10% by weight of an element or a mixture of elements selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, and tantalum; either at least 0.01% or 0.01–10% by weight of an element or a mixture of elements selected from the group of the lanthanides (rare earths); either at least 0.5% or 0.5–10% by weight of an element or a mixture of elements selected from the group consisting of silver, copper, and indium; optionally either at least 0.01% or 0.01–1% by weight of gallium; and a remainder consisting of tin, lead, or of a mixture of tin and lead.
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Lugscheider Erich
Tillmann Wolfgang
Zhuang Hongshou
Ip Sikyin
Materials Resources International
Stradley Ronon Stevens & Young LLP
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