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:
Jun. 14, 1994
Filed:
Apr. 08, 1992
Yoshio Usuda, Yokohama, JP;
Hiroaki Itaba, Tokyo, JP;
Jumpei Kumagai, Yokohama, JP;
Seiji Kaki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In a laser-broken fuse used in a memory redundancy technique, an aluminum wiring layer is formed on an interlevel insulating film. A portion of the wiring layer is selected to be broken to shut off conduction of the layer. A polysilicon-made heat member is provided in the interlevel insulating film at the place which is underneath the selected portion. The heat member is located on a field insulating film. This heat member generates heat by absorbing energy from a laser beam, and thermal-explodes in a sealed atmosphere so as to break the selected portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile