Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article
Reexamination Certificate
2007-12-12
2009-12-22
McPherson, John A. (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making named article
C430S394000
Reexamination Certificate
active
07635555
ABSTRACT:
This invention is a method for fabricating polymer ridged waveguides by using tilted immersion lithography. It includes the steps of: 1. preparing step; 2. calculating step; 3. first tilted immersion lithography step; 4. rotating 180-degree step; 5. second tilted immersion lithography step; and 6. finishing step. By these two tilted immersion lithography steps as well as the rotating 180-degree step between them, the UV light refracts and makes the photoresist forming a 45-degree ridged waveguide. This fabricating method is simple and stable. It can reduce the fabricating time and cost. Also, it is suitable for mass production and it has wide-ranged applications.
REFERENCES:
patent: 2004-133300 (2004-04-01), None
Computer-generated translation of JP 2004-133300 (Apr. 2004).
IBM Technical Disclosure Bulletin, vol. 35, Issue 5, pp. 460-462 (Oct. 1992).
IBM Technical Disclosure Bulletin, vol. 32, Issue 11, pp. 305-307 (Apr. 1990).
Wu Chung Chiung
Yang Hsiharng
McPherson John A.
Rosenberg , Klein & Lee
Yang Hsiharng
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