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. 11, 1984
Filed:
Mar. 01, 1982
Kouji Ueno, Kawasaki, JP;
Tamio Miyamura, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A field programmable device comprises a plurality of word lines, a plurality of bit lines which are disposed in a manner to intersect the word lines, a plurality of cells which are respectively connected to the word lines and the bit lines, and a plurality voltage supply means, each of comprising a series connection of a resistor and a diode whose cathode is connected to each of the word lines. The voltage supply means supplies non-selected the word lines with a voltage high enough to prevent parasitic P-N-P-N elements, which are formed by the cells and the word lines, from turning on. Thus a programming current is hindered from flowing out of the cells.