Invention Grant
- Patent Title: Sandwiched organic LGA structure
- Patent Title (中): 三明治有机LGA结构
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Application No.: US11847606Application Date: 2007-08-30
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Publication No.: US07795724B2Publication Date: 2010-09-14
- Inventor: William L. Brodsky , James A. Busby , Bruce J. Chamberlin , Mitchell G. Ferrill , David L. Questad , Robin A. Susko
- Applicant: William L. Brodsky , James A. Busby , Bruce J. Chamberlin , Mitchell G. Ferrill , David L. Questad , Robin A. Susko
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Gibb I.P. Law Firm, LLC
- Main IPC: H01L23/34
- IPC: H01L23/34

Abstract:
An LGA structure is provided having at least one semiconductor device over a substrate and a mechanical load apparatus over the semiconductor device. The structure includes a load-distributing material between the mechanical load apparatus and the substrate. Specifically, the load-distributing material is proximate a first side of the semiconductor device and a second side of the semiconductor device opposite the first side of the semiconductor device. Furthermore, the load-distributing material completely surrounds the semiconductor device and contacts the mechanical load apparatus, the substrate, and the semiconductor device. The load-distributing material can be thermally conductive and comprises an elastomer and/or a liquid. The load-distributing material comprises a LGA interposer adapted to connect the substrate to a PCB below the substrate and/or a second substrate. Moreover, the load-distributing material comprises compressible material layers and rigid material layers. The load-distributing material comprises a rigid material incased in a compressible material.
Public/Granted literature
- US20090057865A1 SANDWICHED ORGANIC LGA STRUCTURE Public/Granted day:2009-03-05
Information query
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