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:
Oct. 02, 2007
Filed:
Nov. 25, 1998
Kazuhisa Sakamoto, Kyoto, JP;
Kazuhisa Sakamoto, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An object of the present invention is to provide a semiconductor device capable of radiating electron-beams only to a desired region without forming a layer for restricting the radiating rays. A source electrodemade of aluminum prevents the generation of bremsstrahlung even when the electron-beams are radiated to the source electrode in a exposed condition. Also, the source electrode having an openingat above of a crystal defect regionis used as a mask when the electron-beams are radiated thereto. That is the source electrode made of aluminum can be used both as a wiring and a mask for the radiating rays.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile