Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 31, 2006
Patent Application Number
10377202
Date Filed
February 27, 2003
Patent Primary Examiner
Patent abstract
A packaging system for a high current, low voltage power supply. The power supply uses bare die power FETs which are directly mounted to a thermally conductive substrate by a solder attachment made to the drain electrode metallization on the back side of the FETs. The source electrode and gate electrode of each FET are coupled to the circuitry on an overhanging printed circuit board, using CSP solder balls affixed to the front side of the FET die. The heat generated by the FETs is effectively dissipated by the close coupling of the FETs to the thermally conductive underlying substrate.
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