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:
Dec. 25, 1990
Filed:
Dec. 29, 1986
Applicant:
Inventor:
Robert E Jones, Jr, Colorado Springs, CO (US);
Assignee:
Inmos Corporation, Colorado Springs, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 71 ; 357 65 ; 357 71 ; 357 / ;
Abstract
An integrated circuit includes a patterned aluminum based interconnect clad on the top and side portions with a layer of transition metal. The cladding of transition metal prevents the formation of both vertical hillocks and lateral protrusions. Preventing these formations increases the reliability of an interconnect by significantly reducing passivation cracking and electrical shorting between interconnects which result from vertical hillock and lateral protrusion formations.