The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
Mar. 25, 2003
Motohiro Toyota, Kanagawa, JP;
Ichiro Saito, Kanagawa, JP;
Toshiki Shimamura, Kanagawa, JP;
Masakazu Muroyama, Kanagawa, JP;
Motohiro Toyota, Kanagawa, JP;
Ichiro Saito, Kanagawa, JP;
Toshiki Shimamura, Kanagawa, JP;
Masakazu Muroyama, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A process for producing a cold cathode field emission device. A cathode electrode is formed on a front surface of a support member that transmits exposure light. An insulating layer is formed on an entire surface. A gate electrode is formed on the insulating layer. The support member is irradiated with exposure light from a back surface side of the support member through the hole as a mask for exposure. An electron-emitting-portion-forming-layer composed of a photosensitive material is formed at least inside the opening portion. The support member is irradiated with exposure light form a back surface side of the support member through the hole at a mask for exposure.