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:
Jul. 13, 2010
Filed:
May. 27, 2005
Kunio Takada, Kanagawa-Ken, JP;
Kunio Takada, Kanagawa-Ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An object of the present invention is to prevent a device portion from being electrostatically charged with the use of the high resistivity film, and at the same time prevent a leak current passing the device portion due to an existing high resistivity film, in an electron source with the use of a surface-conduction electron-emitting device. This process for manufacturing the electron-emitting device comprises the steps of: forming an electroconductive thin filmastride device electrodes; forming the high resistivity filmin a region except the electroconductive thin filmand a perimeter thereof; subjecting the electroconductive thin filmto forming processing, to form a fissuretherein; and depositing a carbon filminside the fissureand in a region reaching the high resistivity filmfrom the edge of the fissure, by applying voltage between device electrodesandunder an atmosphere containing a carbon compound.