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:
Feb. 12, 1991
Filed:
Aug. 07, 1989
Chin S Park, Sunnyvale, CA (US);
Gregory E Atwood, San Jose, CA (US);
Lubin Y Gee, Cupertino, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A virtual ground electrically programmable read-only memory device in which disturbance to neighboring cells is practically eliminated, is disclosed. In one embodiment the memory device comprises a plurality of memory cells formed in a semiconductor substrate and arranged in rows and columns so as to form an array. During read operations, pairs of adjacent cells are accessed simultaneously by grounding a single column line within the array. The two adjacent column lines--one on each side of the grounded column line--are coupled to separate read paths. Within the array, rows of cells store bits from a plurality of data bytes according to a pattern in which pairs of adjacent cells store different bits from different bytes.