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:
Dec. 02, 2003
Filed:
Nov. 28, 2000
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There are provided an electron beam device which has an atmospheric pressure-resistant member such as a spacer interposed between an electron source and a member to be irradiated with electrons, and can suppress charge on the member, a charging-suppressing member, and its producing method. An electron beam device having an electron source for emitting electrons, a member to be irradiated with the electrons, and a first member interposed between the electron source and the member to be irradiated is characterized in that the surface of the first member has a three-dimensional shape, and projecting portions of the three-dimensional shape form a network shape. In addition, an electron beam device having an electron source for emitting electrons, a member to be irradiated with the electrons, and a first member interposed between the electron source and the member to be irradiated is characterized in that the surface of the first member has a three-dimensional shape, and the three-dimensional shape has recessed portions continuously surrounded by projecting portions.