发明授权
- 专利标题: Method and materials for reverse patterning
- 专利标题(中): 用于反向图案化的方法和材料
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申请号: US13386514申请日: 2010-06-22
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公开(公告)号: US08828252B2公开(公告)日: 2014-09-09
- 发明人: Michael L. Bradford , Eric Scott Moyer , Kasumi Takeuchi , Sheng Wang , Craig Rollin Yeakle
- 申请人: Michael L. Bradford , Eric Scott Moyer , Kasumi Takeuchi , Sheng Wang , Craig Rollin Yeakle
- 申请人地址: US MI Midland
- 专利权人: Dow Corning Corporation
- 当前专利权人: Dow Corning Corporation
- 当前专利权人地址: US MI Midland
- 代理商 Sharon K. Brady
- 国际申请: PCT/US2010/039415 WO 20100622
- 国际公布: WO2011/011142 WO 20110127
- 主分类号: B44C1/22
- IPC分类号: B44C1/22 ; H01L21/02 ; C08G77/18 ; C08L83/04 ; H01L21/033 ; C09D183/04
摘要:
A silsesquioxane resin is applied on top of the patterned photo-resist and cured to produce a cured silsesquioxane resin on top of the pattern surface. Subsequently, an aqueous base stripper or a reactive ion etch recipe containing CF4 is used to “etch back” the silicon resin to the top of the photoresist material, exposing the entire top surface of the photoresist. Then, a second reactive ion etch recipe containing O2 to etch away the photoresist. The result is a silicon resin film with via holes with the size and shape of the post that were patterned into the photoresist. Optionally, the new pattern can be transferred into the underlying layer(s).
公开/授权文献
- US20120123135A1 Method And Materials For Reverse Patterning 公开/授权日:2012-05-17
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