Importance

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Abstract

A lead-on-chip integrated circuit package comprising at least one extremely thin adhesive layer transferred from a carrier onto the face of integrated circuit chips, and a lead frame laminated to the last adhesive layer, with cured adhesive acting as an insulator, integrated circuit chip connection pads bonded to and encapsulating the chip and lead frame. Thermally conductive and electrically insulating filling may be included with the adhesive to improve heat conduction from the IC. Compliant adhesive reduces thermally induced stresses between the lead frame and IC chip. Both the improved thermal performance and reduced moisture absorption of the encapsulated package improves the reliability of the integrated circuit package.

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First Claim