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:
Aug. 01, 2000
Filed:
Apr. 22, 1998
Applicant:
Inventors:
John MacPherson, Fremont, CA (US);
Alan H Huggins, Gilroy, CA (US);
Assignee:
Clear Logic, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
438-4 ; 438132 ; 438601 ;
Abstract
A method and structure for customizing or repairing integrated circuits using passivated tungsten fuses and low-power energy beams to select which tungsten fuses are to be removed. The tungsten fuses are formed in an array to connect possible connection points of the device. A low-power energy source then selects undesired connection points, and a conventional etch removes the selected tungsten fuses, thereby customizing or repairing the integrated circuit. Because neither precision custom masks nor high energy laser sources are required, the problems associated with conventional methods are reduced or eliminated.