Invention Grant
US08395228B2 Integration process to improve focus leveling within a lot process variation
有权
整合过程可以在很多过程变化中提高焦点调平
- Patent Title: Integration process to improve focus leveling within a lot process variation
- Patent Title (中): 整合过程可以在很多过程变化中提高焦点调平
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Application No.: US12941375Application Date: 2010-11-08
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Publication No.: US08395228B2Publication Date: 2013-03-12
- Inventor: Wai-Kin Li , Wu-Song Huang , Dario Leonardo Goldfarb , Martin Glodde , Edward Engbrecht , Yiheng Xu
- Applicant: Wai-Kin Li , Wu-Song Huang , Dario Leonardo Goldfarb , Martin Glodde , Edward Engbrecht , Yiheng Xu
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Catherine Ivers Wenjie Li
- Agent Ira D. Blecker
- Main IPC: H01L21/02
- IPC: H01L21/02

Abstract:
A method of improving the focus leveling response of a semiconductor wafer is described. The method includes combining organic and inorganic or metallic near infrared (NIR) hardmask on a semiconductor substrate; forming an anti-reflective coating (ARC) layer on the combined organic NIR-absorption and the inorganic or metallic NIR-absorption hardmask; and forming a photoresist layer on the ARC layer. A semiconductor structure is also described including a substrate, a resist layer located over the structure; and an absorptive layer located over the substrate. The absorptive layer includes an inorganic or metallic NIR-absorbing hardmask layer.
Public/Granted literature
- US20120112302A1 Novel Integration Process to Improve Focus Leveling Within a Lot Process Variation Public/Granted day:2012-05-10
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