Coating processes – Coating by vapor – gas – or smoke – Organic coating applied by vapor – gas – or smoke
Reexamination Certificate
2008-04-29
2008-04-29
Chen, Bret (Department: 1792)
Coating processes
Coating by vapor, gas, or smoke
Organic coating applied by vapor, gas, or smoke
C427S294000
Reexamination Certificate
active
10805847
ABSTRACT:
A vapor deposition source for use in vacuum chamber for coating an organic layer on a substrate of an OLED device, includes a manifold including side and bottom walls defining a chamber for receiving organic material, and an aperture plate disposed between the side walls, the aperture plate having a plurality of spaced apart apertures for emitting vaporized organic material; the aperture plate including conductive material which in response to an electrical current produces heat; means for heating the organic material to a temperature which causes its vaporization, and heating the side walls of the manifold; and an electrical insulator coupling the aperture plate to the side walls for concentrating heat in the unsupported region of the aperture plate adjacent to the apertures, whereby the distance between the aperture plate and the substrate can be reduced to provide high coating thickness uniformity on the substrate. A method for coating an organic layer on onto a substrate in a vacuum chamber includes providing a manifold including side and bottom walls defining a chamber for receiving organic material. and an aperture plate disposed between the side walls, the aperture elate having a plurality of spaced apart apertures for emitting vaporized organic material; heating the organic material to a temperature which causes its vaporization, and the side walls of the manifold, the aperture plate includes a first aperture plate emissive surface that radiates energy into the chamber and a second aperture plate emissive surface that radiates less energy to the substrate wherein the second aperture elate emissive surface has an emissivity lower than the first aperture plate emissive surface; and concentrating heat in an unsupported region of the aperture plate adjacent to the apertures by providing an electrical insulator coupling the aperture plate to the side walls.
REFERENCES:
patent: 2447789 (1948-08-01), Barr
patent: 4769292 (1988-09-01), Tang et al.
patent: 4854263 (1989-08-01), Chang et al.
patent: 4877505 (1989-10-01), Bergmann
patent: 4885211 (1989-12-01), Tang et al.
patent: 6237529 (2001-05-01), Spahn
patent: 6749906 (2004-06-01), Van Slyke
patent: 6893939 (2005-05-01), Grace et al.
patent: 6936551 (2005-08-01), Moghadam et al.
patent: 7166169 (2007-01-01), Freeman et al.
patent: 2004/0042770 (2004-03-01), Choe et al.
patent: 0 422 355 (1990-09-01), None
patent: 0982411 (2000-03-01), None
patent: 1 342 808 (2003-09-01), None
patent: 1 491 653 (2004-12-01), None
patent: WO 03/025245 (2003-03-01), None
patent: 03/062486 (2003-07-01), None
patent: 03/079420 (2003-09-01), None
Patent Abstracts of Japan vol. 005, No. 204 (C-085), Dec. 24, 1981 & JP 56 123368, Sep. 28, 1981 abstract.
“27.2 Linear source deposition of organic layers for full-color OLED”, by Steven VanSlyke et al., 2002 SID International Symposium Digest of Technical Papers. Boston, MA., May 21-23, 2002.
Freeman Dennis R.
Grace Jeremy M.
Koppe Bruce E.
Long Michael
Redden Neil P.
Chen Bret
Eastman Kodak Company
Owens Raymond L.
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