Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2007-09-18
2007-09-18
Walke, Amanda (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S281100, C430S905000, C430S910000, C430S914000, C430S921000, C430S925000, C430S945000
Reexamination Certificate
active
11175651
ABSTRACT:
A negative resist composition and a method for patterning semiconductor devices using the composition are provided. The negative resist composition contains an alkali-soluble hydroxy-substituted base polymer, a silicon-containing crosslinker having an epoxy ring, and a photoacid generator. In the method for patterning semiconductor devices, fine patterns are formed according to a bi-layer resist process using the negative resist composition.
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patent: 6210856 (2001-04-01), Lin et al.
patent: 6787455 (2004-09-01), Tsai et al.
F. Chau & Associates LLC
Walke Amanda
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