发明申请
- 专利标题: CLEANING SOLUTION FOR SUBSTRATE FOR SEMICONDUCTOR DEVICE
- 专利标题(中): 用于半导体器件的衬底的清洁解决方案
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申请号: US12936304申请日: 2009-05-18
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公开(公告)号: US20110027995A1公开(公告)日: 2011-02-03
- 发明人: Youichi Ishibashi
- 申请人: Youichi Ishibashi
- 优先权: JP2008-137199 20080526
- 国际申请: PCT/JP2009/059478 WO 20090518
- 主分类号: H01L21/306
- IPC分类号: H01L21/306 ; C23G1/02
摘要:
A cleaning solution of the present invention contains a sodium ion, a potassium ion, an iron ion, an ammonium salt of a sulfuric ester represented by General Formula (1), and water, and each content of the sodium ion, the potassium ion, and the iron ion is 1 ppb to 500 ppb. ROSO3—(X)+ (1) where R is an alkyl group with a carbon number of 8-22 or an alkenyl group with a carbon number of 8-22, and (X)+ is an ammonium ion.
公开/授权文献
- US08846533B2 Cleaning solution for substrate for semiconductor device 公开/授权日:2014-09-30
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