Invention Grant
- Patent Title: Glue layer for hydrofluorocarbon etch
- Patent Title (中): 氟化氢蚀刻胶层
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Application No.: US11610953Application Date: 2006-12-14
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Publication No.: US07902073B2Publication Date: 2011-03-08
- Inventor: Ji Soo Kim , Sangheon Lee , Deepak K. Gupta , S. M. Reza Sadjadi
- Applicant: Ji Soo Kim , Sangheon Lee , Deepak K. Gupta , S. M. Reza Sadjadi
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Beyer Law Group LLP
- Main IPC: H01L21/311
- IPC: H01L21/311

Abstract:
A method for etching features in an etch layer disposed below a mask on a process wafer is provided. A hydrocarbon based glue layer is deposited. The etch layer on the process wafer is etched with at least one cycle, wherein each cycle comprises depositing a hydrofluorocarbon layer over the mask and on the hydrocarbon based glue layer, wherein the hydrocarbon based glue layer increases adhesion of the hydrofluorocarbon layer and etching the etch layer.
Public/Granted literature
- US20080146032A1 GLUE LAYER FOR HYDROFLUOROCARBON ETCH Public/Granted day:2008-06-19
Information query
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