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. 07, 1995
Filed:
Sep. 18, 1992
Applicant:
Inventors:
Abdul R Forouhi, San Jose, CA (US);
Esmat Z Hamdy, Fremont, CA (US);
Chenming Hu, Alamo, CA (US);
John L McCollum, Saratoga, CA (US);
Assignee:
Actel Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H03K / ;
U.S. Cl.
CPC ...
257530 ; 257528 ; 257529 ; 257758 ; 257774 ;
Abstract
A metal-to metal antifuse device is provided in a double layer metal interconnect structure. A lower electrode comprises a first multilayer metal layer interconnect disposed on an insulator. An inter-metal dielectric is disposed on the first metal layer interconnect having an antifuse via. An antifuse material layer is disposed in the antifuse via and having an upper electrode comprising a second multilayer metal layer interconnect.