Semiconductor device manufacturing: process – Chemical etching – Combined with coating step
Reexamination Certificate
2011-05-24
2011-05-24
Lee, Calvin (Department: 2892)
Semiconductor device manufacturing: process
Chemical etching
Combined with coating step
C216S044000
Reexamination Certificate
active
07947608
ABSTRACT:
Methods of imprint lithography are described. Generally, the methods include imprinting, via a patterned mold, a pattern into a polymerizable fluid composition on a substrate to form a patterned imprinting layer. A conformal layer is overlayed on the patterned imprinting layer. A portion of the conformal layer is used as a hard mask for subsequent processing. The imprinted pattern may be transferred to the substrate by a plurality of etches.
REFERENCES:
patent: 6814879 (2004-11-01), Shibata
patent: 7261831 (2007-08-01), Sreenivasan
patent: 7858528 (2010-12-01), Sreenivasan
Lee Calvin
Molecular Imprints, Inc.
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