Invention Grant
- Patent Title: Photolithography methods and systems
- Patent Title (中): 光刻方法和系统
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Application No.: US10842979Application Date: 2004-05-11
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Publication No.: US06982232B2Publication Date: 2006-01-03
- Inventor: Nicholas F. Borrelli , Charlene M. Smith , Johannes Moll
- Applicant: Nicholas F. Borrelli , Charlene M. Smith , Johannes Moll
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Siwen Chen
- Main IPC: C03C3/06
- IPC: C03C3/06

Abstract:
Lithographic methods are disclosed. In one such method, a pulsed ultraviolet radiation source for producing ultraviolet lithography radiation having a wavelength shorter than about 300 nm at a fluence of less than 10 mJ/cm2/pulse and a high purity fused silica lithography glass having a concentration of molecular hydrogen of between about 0.02×1018 molecules/cm3 and about 0.18×1018 molecules/cm3 are provided. A lithography pattern is formed with the ultraviolet lithography radiation; the lithography pattern is reduced to produce a reduced lithography pattern; and the reduced lithography pattern is projected onto a ultraviolet radiation sensitive lithography medium to form a printed lithography pattern. At least one of the forming, reducing, and projecting steps includes transmitting the ultraviolet lithography radiation through the high purity fused silica lithography glass. Lithography systems and high purity fused silica lithography glass are also described.
Public/Granted literature
- US20040235635A1 Photolithography methods and systems Public/Granted day:2004-11-25
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