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:
May. 11, 1999
Filed:
Aug. 20, 1997
Applicant:
Inventor:
John C Sardella, Highland Village, TX (US);
Assignee:
STMicroelectronics, Inc., Carrollton, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257751 ; 257760 ; 257774 ; 257915 ;
Abstract
An integrated circuit wherein a planarization step has been performed before the primary metal deposition step, but after deposition of the adhesion and barrier layers. Thus the adhesion and barrier layers are present on the sidewalls of contact holes, but do not underlie the whole extent of the primary metallization.