DocumentCode
1146695
Title
Design considerations for a Gaudi test structure which can be used to determine the optimum focus
Author
Fallon, Martin ; Walton, Anthony J. ; Stevenson, J.T.M. ; Ross, Alan W S
Author_Institution
Dept. of Electr. Eng., Edinburgh Univ., UK
Volume
7
Issue
3
fYear
1994
fDate
8/1/1994 12:00:00 AM
Firstpage
272
Lastpage
278
Abstract
A test structure is described which can be used to optimize the focus of wafer steppers. Simulation is used to examine the effect that some of the design parameters have on the sensitivity of the structure. Finally some practical measurements are presented
Keywords
focusing; semiconductor technology; Gaudi test structure; design parameters; optimum focus; sensitivity; wafer steppers; Bars; Electric resistance; Electric variables measurement; Focusing; Helium; Image resolution; Instruments; Optical sensors; Stimulated emission; Testing;
fLanguage
English
Journal_Title
Semiconductor Manufacturing, IEEE Transactions on
Publisher
ieee
ISSN
0894-6507
Type
jour
DOI
10.1109/66.311329
Filename
311329
Link To Document