Invention Grant
US07727871B2 Manufacturing method of semiconductor device using etching solution
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使用蚀刻溶液的半导体器件的制造方法
- Patent Title: Manufacturing method of semiconductor device using etching solution
- Patent Title (中): 使用蚀刻溶液的半导体器件的制造方法
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Application No.: US11702575Application Date: 2007-02-06
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Publication No.: US07727871B2Publication Date: 2010-06-01
- Inventor: Hiroshi Tomita , Hiroyasu Iimori
- Applicant: Hiroshi Tomita , Hiroyasu Iimori
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JP2006-029639 20060207
- Main IPC: H01L21/3205
- IPC: H01L21/3205 ; H01L21/4763

Abstract:
This disclosure concerns a manufacturing method of a semiconductor device comprising an etching process using an etching solution having ozone dissolved by 10 ppm or more into a liquid containing H2SO4 by 86 wt % to 97.9 wt %, HF by 0.1 wt % to 10 wt %, and H2O by 2 wt % to 4 wt %.
Public/Granted literature
- US20070224792A1 Manufacturing method of semiconductor device and etching solution Public/Granted day:2007-09-27
Information query
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