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US007374984B2

(12) United States Patent

Hoffman et al.

(io) Patent No.: (45) Date of Patent:

US 7,374,984 B2 May 20, 2008

(54) METHOD OF FORMING A THIN FILM COMPONENT

(76) Inventors: Randy Hoffman, 2924 NE. Newcastle PI, Corvallis, OR (US) 97330; Peter Mardilovich, 4327 NW. Silverbelle PI, Corvallis, OR (US) 97330; David Punsalan, 1024 Colony Pond Dr., Eugene, OR (US) 97401

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 109 days.

(21) Appl. No.: 10/977,068

(22) Filed: Oct. 29, 2004

(65) Prior Publication Data

US 2006/0094168 Al May 4, 2006

(51) Int. CI.

H01L 21/84 (2006.01)

(52) U.S. CI 438/164; 438/591; 257/411;

257/E21.177; 257/21.413

(58) Field of Classification Search 438/164,

438/591; 257/411, E21.177, E21.413 See application file for complete search history.

(56) References Cited

U.S. PATENT DOCUMENTS

4,514,253 A 4/1985 Minezaki

5,328,861 A * 7/1994 Miyakawa 438/151

6,521,489 B2* 2/2003 Duthaler et al 438/149

6,737,287 Bl 5/2004 Furase et al.

6,767,760 B2 * 7/2004 Horikoshi et al 438/97

6,791,144 Bl 9/2004 Fryer

6,919,158 B2* 7/2005 Kawamura et al 430/270.1

7,011,996 B2* 3/2006 Okumura et al 438/164

2002/0173130 Al 11/2002 Pomerede

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FOREIGN PATENT DOCUMENTS

DE 28 37 433 3/1979

OTHER PUBLICATIONS

Vanfleteren, "A four-vaccuum-cycle lift-off process . . . ", IEEE

Electron Device Letters, vol. 6, No. 1, Jan. 1, 1985, pp. 11-13,

XP001292098, Lab of Elect, Ghent St Univ, Belgium.

Van Calster, "A new technology for fast switching circuits on glass",

IEEE Electron Device Letters, vol. 8, No. 10, Oct. 10, 1987, pp.

477-479, XP001292093,Lab of Elect, Belgium.

Jaeger, "2D channel transport of metal-insulator

semiconductor . . . ", Semiconductor Science & Tech, IOP, Bristol,

GB, vol. 9, No. 1, Jan. 1994, pp. 54-60, XP000440612.

* cited by examiner

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