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:
Nov. 14, 2006
Filed:
Aug. 05, 2004
Applicants:
Oliver Brennan, Adare, IE;
Denis Doyle, Patrickswell, IE;
Inventors:
Oliver Brennan, Adare, IE;
Denis Doyle, Patrickswell, IE;
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 17/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A programmable read only memory includes a matrix of semi-fusible link memory cells, each including a semi-fusible link having an intact impedance and a blown impedance; a bit line voltage supply switching circuit for applying a current to at least one selected bit line; a word line address decoder for selecting a word line; and a program control logic circuit for blowing the semi-fusible links in the memory cells identified by the intersection of the selected word and bit lines; a method is disclosed of testing programmed and unprogrammed read only memory.