Invention Grant
- Patent Title: Realization of self-positioned contacts by epitaxy
- Patent Title (中): 通过外延实现自定位接触
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Application No.: US12101744Application Date: 2008-04-11
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Publication No.: US08168536B2Publication Date: 2012-05-01
- Inventor: Didier Dutartre , Philippe Coronel , Nicolas Loubet
- Applicant: Didier Dutartre , Philippe Coronel , Nicolas Loubet
- Applicant Address: FR Montrouge
- Assignee: STMicroeletronics S.A.
- Current Assignee: STMicroeletronics S.A.
- Current Assignee Address: FR Montrouge
- Agency: Gardere Wynne Sewell LLP
- Priority: FR0702696 20070413
- Main IPC: H01L21/44
- IPC: H01L21/44

Abstract:
Metal contacts are self-positioned on a wafer of semiconductor product. Respective placement areas for a metal contact are determined by a selective deposition of a growth material over a region of the substrate surface (for example, through epitaxial growth). The growth material is surrounded by an insulating material. The grown material is then removed to form a void in the insulating material which coincides with the desired location of the metal contact. This removal of the grown material exposes the region on the substrate surface. Conductive material is then deposited to fill the void and thus form the metal contact directly with the region of the substrate surface.
Public/Granted literature
- US20080254580A1 Realization of Self-Positioned Contacts by Epitaxy Public/Granted day:2008-10-16
Information query
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