Invention Grant
US08721797B2 Enhanced passivation process to protect silicon prior to high dose implant strip
有权
增强钝化工艺,以在高剂量植入条之前保护硅
- Patent Title: Enhanced passivation process to protect silicon prior to high dose implant strip
- Patent Title (中): 增强钝化工艺,以在高剂量植入条之前保护硅
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Application No.: US12963503Application Date: 2010-12-08
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Publication No.: US08721797B2Publication Date: 2014-05-13
- Inventor: David Cheung , Haoquan Fang , Jack Kuo , Ilia Kalinovski , Ted Li , Andrew Yao
- Applicant: David Cheung , Haoquan Fang , Jack Kuo , Ilia Kalinovski , Ted Li , Andrew Yao
- Applicant Address: US CA Fremont
- Assignee: Novellus Systems, Inc.
- Current Assignee: Novellus Systems, Inc.
- Current Assignee Address: US CA Fremont
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: B08B7/00
- IPC: B08B7/00

Abstract:
Improved methods and apparatus for stripping photoresist and removing ion implant related residues from a work piece surface are provided. According to various embodiments, the workpiece is exposed to a passivation plasma, allowed to cool for a period of time, and then exposed to an oxygen-based or hydrogen-based plasma to remove the photoresist and ion implant related residues. Aspects of the invention include reducing silicon loss, leaving little or no residue while maintaining an acceptable strip rate. In certain embodiments, methods and apparatus remove photoresist material after high-dose ion implantation processes.
Public/Granted literature
- US20110139175A1 ENHANCED PASSIVATION PROCESS TO PROTECT SILICON PRIOR TO HIGH DOSE IMPLANT STRIP Public/Granted day:2011-06-16
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