Invention Grant
- Patent Title: Through via recessed reveal structure and method
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Application No.: US12985888Application Date: 2011-01-06
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Publication No.: US08390130B1Publication Date: 2013-03-05
- Inventor: David Jon Hiner , Ronald Patrick Huemoeller , Michael G. Kelly
- Applicant: David Jon Hiner , Ronald Patrick Huemoeller , Michael G. Kelly
- Applicant Address: US AZ Chandler
- Assignee: Amkor Technology, Inc.
- Current Assignee: Amkor Technology, Inc.
- Current Assignee Address: US AZ Chandler
- Agency: McKay and Hodgson, LLP
- Agent Serge J. Hodgson
- Main IPC: H01L23/48
- IPC: H01L23/48

Abstract:
A stacked assembly includes a stacked structure stacked on a through via recessed reveal structure. The through via recessed reveal structure includes recesses within a backside surface of an electronic component that expose backsides of through vias. Pillars of the stacked structure are attached to the exposed backsides of the through vias through the recesses. The recesses in combination with the pillars work as a lock and key arrangement to insure self-alignment of the pillars with the backsides of the through vias allowing fine pitch interconnections to be realized. Further, by forming the interconnections to the backsides of the through vias within the recesses, the overall thickness of the stacked assembly is minimized. Further still, by forming the interconnections to the backsides of the through vias within the recesses, shorting between adjacent through vias is minimized or eliminated.
Information query
IPC分类: