Patent ID: 7435622
Filing Date: 2008-10-14
Classification: H01L

Abstract:
1. A method of making a high performance reworkable heatsink and packaging structure comprising the steps of: forming a heatsink structure for attachment to a module structure; forming said heatsink structure including providing a heatsink base frame; soldering a selected one of a heatpipe or a vapor chamber to said heatsink base frame, soldering a plurality of parallel fins to said heatsink base frame; and applying a solder release layer on at least a portion of an outer surface of said heatsink structure; said solder release layer having a lower melting temperature range than each solder used for attaching said selected one of said heatpipe or said vapor chamber, and said plurality of parallel fins to said heatsink base frame; and attaching said heatsink structure to said module structure using a high performance high adhesive bond strength thermal interface material (TIM) applied between said solder release layer and said module structure.