Invention Grant
- Patent Title: Semiconductor device and method for manufacturing the same
- Patent Title (中): 半导体装置及其制造方法
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Application No.: US12046881Application Date: 2008-03-12
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Publication No.: US07709368B2Publication Date: 2010-05-04
- Inventor: Shinya Sasagawa
- Applicant: Shinya Sasagawa
- Applicant Address: JP Kanagawa-Ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Kanagawa-Ken
- Agency: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Priority: JP2007-079609 20070326
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
A method for easily manufacturing a semiconductor device in which variation in thickness or disconnection of a source electrode or a drain electrode is prevented is proposed A semiconductor device includes a semiconductor layer formed over an insulating substrate; a first insulating layer formed over the semiconductor layer; a gate electrode formed over the first insulating layer; a second insulating layer formed over the gate electrode; an opening which reaches the semiconductor layer and is formed at least in the first insulating layer and the second insulating layer; and a step portion formed at a side surface of the second insulating layer in the opening.
Public/Granted literature
- US20080237876A1 SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2008-10-02
Information query
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