Metal interconnect System and Method for Direct Die Attachment
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United States of America Patent
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app pub date -
Dec 11, 2004
filing date -
Dec 12, 2003
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Abandoned
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Abstract
Provided herein is an exemplary embodiment of a semiconductor chip for directly connecting to a carrier. The chip includes a metal layer applied to a top surface of the chip; a passivation layer applied over the metal layer such that portions of the passivation layer is selectively removed to create one or more openings ('bond pads') exposing portions of the metal layer and one or more solderable metal contact regions formed on each of the one or more openings. The solderable metal contact regions electrically connect to the carrier when the chip is positioned face down on the carrier, supplied with a thin layer of solder and heated.
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