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:
Jul. 10, 1984
Filed:
Mar. 03, 1982
Rahul Sud, Colorado Springs, CO (US);
Kim C Hardee, Colorado Springs, CO (US);
Inmos Corporation, Colorado Springs, CO (US);
Abstract
A redundancy system is described for a high speed, wide-word semiconductor memory having first and second arrays of regular memory cells. The system includes a plurality of spare columns of cells, half of which are located adjacent the first array and half of which are located adjacent the second array. The number of spare columns which are adjacent each array is equal to the number of regular columns which are simultaneously selectable by an address input. Circuitry is included for responding to an incoming address representative of a defective regular cell for selecting half the spare columns in the first array in lieu of the regular addressed columns therein, and for selecting half the spare columns in the second array in lieu of the addressed regular columns therein.