Invention Grant
- Patent Title: Semiconductor device and method of manufacturing semiconductor device
- Patent Title (中): 半导体装置及其制造方法
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Application No.: US11690527Application Date: 2007-03-23
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Publication No.: US07670949B2Publication Date: 2010-03-02
- Inventor: Chiharu Iriguchi
- Applicant: Chiharu Iriguchi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-084936 20060327
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
A method of manufacturing a semiconductor device includes: forming a first photosensitive material pattern having an opening hole on a work target layer formed on an active surface of a substrate; performing a first etching by performing an etching treatment to the work target layer using the first photosensitive material pattern as a mask, and forming one of a concave and a groove in a tapered shape with a wide opening to the work target layer while enlarging the opening hole, by performing the etching treatment so as to enlarge the opening hole; and filling a metal film into one of the concave and the groove.
Public/Granted literature
- US20070224835A1 SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Public/Granted day:2007-09-27
Information query
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