Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-01-24
1998-06-16
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
29412, 29418, 257658, 257668, H05K 334
Patent
active
057652805
ABSTRACT:
The present invention discloses the use of a dielectric substrate panel suitable for supporting a plurality of independently packaged ICs. The substrate panel has a plurality of conductive landings arranged on its top surface, a plurality of conductive contacts arranged on its bottom surface and a multiplicity of electrically conductive vias. The vias pass through the substrate panel and are arranged to interconnect selected landings with their associated conductive contacts. The top surface of the substrate panel also includes a number of die attach areas. During packaging, dies are secured to their associated die attach areas on the substrate panel and electrically coupled to appropriate conductive landings. An encapsulant is then formed over each of the dies for protection.
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patent: 4426773 (1984-01-01), Hargis
patent: 5293067 (1994-03-01), Thompson et al.
patent: 5355016 (1994-10-01), Swirbel et al.
patent: 5438216 (1995-08-01), Juskey et al.
patent: 5455455 (1995-10-01), Badehi
Howard Markstein, "Thermal Enhancements For TQFPs," Electronics Packaging & Production, pp. 24-25, date unknown.
Arbes Carl J.
National Semiconductor Corporation
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