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Title: Near-chip compliant layer for reducing perimeter stress during assembly process

Patent ·
OSTI ID:1343745

A heat source (single semiconductor chip or group of closely spaced semiconductor chips of similar height) is provided on a first side of a substrate, which substrate has on said first side a support member comprising a compressible material. A heat removal component, oriented at an angle to said heat source, is brought into proximity of said heat source such that said heat removal component contacts said support member prior to contacting said heat source. Said heat removal component is assembled to said heat source such that said support member at least partially absorbs global inequality of force that would otherwise be applied to said heat source, absent said support member comprising said compressible material.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
B604142
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
9,570,373
Application Number:
14/963,466
OSTI ID:
1343745
Resource Relation:
Patent File Date: 2015 Dec 09
Country of Publication:
United States
Language:
English

References (14)

Multi-chip socket patent July 2014
Local reduction of compliant thermally conductive material layer thickness on chips patent-application June 2005
Semiconductor Package with a Stiffening Member Supporting a Thermal Heat Spreader patent-application January 2011
Flexible heat sink with lateral compliance patent May 2014
Microelectronic assemblies having compliant layers patent January 2011
Heat spreader for a multi-chip package patent-application June 2008
Lid Design for Reliability Enhancement in Flip Chip Package patent-application July 2012
Compliant Heat Spreader for Flip Chip Packaging patent-application April 2012
Circuit arrangement with a cooling member patent March 1994
Adjustable thickness thermal interposer and electronic package utilizing same patent December 2009
Matrix Lid Heatspreader for Flip Chip Package patent-application January 2016
Thermal Pillow patent-application September 2008
Microelectronic assemblies having compliant layers patent December 2012
Liquid DIMM Cooling Device patent-application January 2013