Invention Grant
- Patent Title: Heat sink with thermally compliant beams
- Patent Title (中): 带散热片的散热片
-
Application No.: US11834552Application Date: 2007-08-06
-
Publication No.: US07749812B2Publication Date: 2010-07-06
- Inventor: Timothy J Chainer
- Applicant: Timothy J Chainer
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Michael J. Buchenhorner; Vazken Alexanian
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L21/48 ; H01L21/50

Abstract:
A heat dissipating structure includes: a heat spreader; and a plurality of compliant beams attached to the heat spreader. The beams are formed of a high-conductive material such that a maximum stress of each beam is less than a fatigue stress of the high-conductive material; said beams are placed at an angle relative to a chip surface such that the beams are able to exert bending compliance in response to x, y, and z forces exerted upon them. The structure also includes a thermal material interface for bonding said structure to the chip surface. Both the heat spreader and the compliant beams can be machined from a copper block. An alternative heat dissipating structure includes compliant beams soldered to the chip surface.
Public/Granted literature
- US20090039499A1 Heat Sink with Thermally Compliant Beams Public/Granted day:2009-02-12
Information query
IPC分类: