Invention Grant
- Patent Title: Method and materials for reverse patterning
- Patent Title (中): 用于反向图案化的方法和材料
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Application No.: US13386514Application Date: 2010-06-22
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Publication No.: US08828252B2Publication Date: 2014-09-09
- Inventor: Michael L. Bradford , Eric Scott Moyer , Kasumi Takeuchi , Sheng Wang , Craig Rollin Yeakle
- Applicant: Michael L. Bradford , Eric Scott Moyer , Kasumi Takeuchi , Sheng Wang , Craig Rollin Yeakle
- Applicant Address: US MI Midland
- Assignee: Dow Corning Corporation
- Current Assignee: Dow Corning Corporation
- Current Assignee Address: US MI Midland
- Agent Sharon K. Brady
- International Application: PCT/US2010/039415 WO 20100622
- International Announcement: WO2011/011142 WO 20110127
- Main IPC: B44C1/22
- IPC: B44C1/22 ; H01L21/02 ; C08G77/18 ; C08L83/04 ; H01L21/033 ; C09D183/04

Abstract:
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).
Public/Granted literature
- US20120123135A1 Method And Materials For Reverse Patterning Public/Granted day:2012-05-17
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