Invention Grant
- Patent Title: Capacitor comprising metal oxide film having high alignment
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Application No.: US14487336Application Date: 2014-09-16
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Publication No.: US09905586B2Publication Date: 2018-02-27
- Inventor: Shunpei Yamazaki , Junichi Koezuka , Kenichi Okazaki , Yasuharu Hosaka
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- 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: Robinson Intellectual Property Law Office
- Agent Eric J. Robinson
- Priority: JP2013-198891 20130925
- Main IPC: H01L27/108
- IPC: H01L27/108 ; H01L29/94 ; H01L27/12

Abstract:
An oxide semiconductor film with a low density of defect states is formed. In addition, an oxide semiconductor film with a low impurity concentration is formed. Electrical characteristics of a semiconductor device or the like using an oxide semiconductor film is improved. A semiconductor device including a capacitor, a resistor, or a transistor having a metal oxide film that includes a region; with a transmission electron diffraction measurement apparatus, a diffraction pattern with luminescent spots indicating alignment is observed in 70% or more and less than 100% of the region when an observation area is changed one-dimensionally within a range of 300 nm.
Public/Granted literature
- US20150084045A1 SEMICONDUCTOR DEVICE Public/Granted day:2015-03-26
Information query
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