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:
Aug. 20, 1985
Filed:
Aug. 06, 1982
Kouji Ueno, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A junction short-circuiting-type programmable read-only memory (PROM) device comprises a plurality of striped buried layers (12) and a plurality of striped collector regions (13) thereon. In each of the collector regions, a plurality of base regions (15-0.about.15-5) are disposed in a row, and in each of the base regions one emitter region (16-0.about.16-5) is disposed. Further, in each of the collector regions, a plurality of high impurity regions (17'-1.about.17'-3) of the same conductivity type as the collector region, are formed respectively connected to the word lines, while each base region is connected to one bit line. Each of the high impurity regions are arranged for every two base regions.