DocumentCode
539423
Title
Application of quality engineering for Cu damascene etching
Author
Oda, Yusuke ; Nishizawa, Atsushi ; Murashima, Shigenobu
Author_Institution
NEC Electronics Corporation, Sagamihara, Kanagawa, JAPAN
fYear
2008
fDate
27-29 Oct. 2008
Firstpage
323
Lastpage
326
Abstract
It was tried to apply quality engineering for optimizing of Cu damascene etching. It attempted that etching parameters were adjusted to improve the within-wafer variation of both trench CD and trench depth by dynamic-S/N ratio analysis. Finally we got the optimal etching conditions which significantly improved the within-wafer variation of trench CD and depth.
Keywords
Arrays; Copper; Etching; Fluid flow; Gain; Optical variables measurement; Semiconductor device measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Semiconductor Manufacturing (ISSM), 2008 International Symposium on
Conference_Location
Tokyo, Japan
ISSN
1523-553X
Electronic_ISBN
1523-553X
Type
conf
Filename
5714944
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