International Business Machines Assigned Patent for Implementing Selective Rework for Chip Stacks and Silicon Carrier Assemblies
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., Aug. 31 -- International Business Machines, Armonk, N.Y., has been assigned a patent (8,519,304) developed by four co-inventors for "implementing selective rework for chip stacks and silicon carrier assemblies." The co-inventors are Gerald Keith Bartley, Rochester, Minn., Darryl John Becker, Rochester, Minn., Philip Raymond Germann, Oronoco, Minn., and Andrew Benson Maki, Rochester, Minn.
The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method, apparatus, and structure are provided for implementing selective rework for chip stacks. A backside metal layer to create resistive heating is added to a chip backside in a chip stack. A rework tool applies a predefined current to the backside metal layer to reflow solder connections and enables separating selected chips in the chip stack."
The patent application was filed on July 9, 2010 (12/833,252). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=85,19,304.PN.&OS=PN/85,19,304&RS=PN/85,19,304
Written by Deviprasad Jena; edited by Jaya Anand.
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