发明申请
- 专利标题: Methods of Forming Semiconductor Constructions
- 专利标题(中): 形成半导体结构的方法
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申请号: US13593373申请日: 2012-08-23
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公开(公告)号: US20120322266A1公开(公告)日: 2012-12-20
- 发明人: Prashant Raghu
- 申请人: Prashant Raghu
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 主分类号: H01L21/306
- IPC分类号: H01L21/306
摘要:
The invention includes methods in which silicon is removed from titanium-containing container structures with an etching composition having a phosphorus-and-oxygen-containing compound therein. The etching composition can, for example, include one or both of ammonium hydroxide and tetra-methyl ammonium hydroxide. The invention also includes methods in which titanium-containing whiskers are removed from between titanium-containing capacitor electrodes. Such removal can be, for example, accomplished with an etch utilizing one or more of hydrofluoric acid, ammonium fluoride, nitric acid and hydrogen peroxide.
公开/授权文献
- US08613864B2 Methods of forming semiconductor constructions 公开/授权日:2013-12-24
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