Semiconductor device manufacturing: process – With measuring or testing
Reexamination Certificate
2006-03-17
2009-06-30
Richards, N Drew (Department: 2895)
Semiconductor device manufacturing: process
With measuring or testing
C438S005000, C438S007000, C438S016000, C257SE21522, C430S005000, C430S030000, C382S144000, C382S145000, C382S147000
Reexamination Certificate
active
07553678
ABSTRACT:
A method for detecting semiconductor-manufacturing conditions includes providing a photomask with a plurality of pattern areas each having a plurality of test lines with different pitches, exposing a plurality of wafer with the photomask in different manufacturing conditions, measuring the critical dimensions of the plurality of pattern areas, generating a library of relationships between the pitches and the critical dimension of the pattern areas, exposing a test wafer in an unknown manufacturing condition, finding out a relationships between the pitches and the critical dimension of the pattern areas of the test wafer, searching for a most similar relationship in the library, and detecting a set of manufacturing parameters used to expose the test wafer.
REFERENCES:
patent: 6563564 (2003-05-01), de Mol et al.
patent: 7008731 (2006-03-01), Nojima et al.
patent: 7427457 (2008-09-01), Plat et al.
patent: 2002/0102468 (2002-08-01), Tzu et al.
patent: 2005/0037272 (2005-02-01), Tanaka
patent: 500987 (2002-09-01), None
patent: 571176 (2004-01-01), None
patent: 200401172 (2004-01-01), None
See Kai-Hung Alex
Yu Jin
Zhou Wen-Zhan
Garcia Joannie A
Hsu Winston
Richards N Drew
United Microelectronics Corp.
LandOfFree
Method for detecting semiconductor manufacturing conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for detecting semiconductor manufacturing conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detecting semiconductor manufacturing conditions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4130339