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:
Jun. 19, 2001
Filed:
Jul. 30, 1999
Samir Chaudhry, Orlando, FL (US);
Sundar Srinivasan Chetlur, Orlando, FL (US);
Nace Layadi, Orlando, FL (US);
Pradip Kumar Roy, Orlando, FL (US);
Hem M. Vaidya, Orlando, FL (US);
Agere Systems Guardian Corp., Murray Hill, NJ (US);
Abstract
An integrated circuit capacitor includes a first dielectric layer adjacent a substrate and having a trench therein, and a metal plug comprising an upper portion extending upwardly into the trench, and a lower portion disposed in the first dielectric layer. The lower portion has a tapered width which increases in a direction toward the substrate to thereby secure the metal plug in the dielectric layer. Preferably, the upper portion is also tapered. Furthermore, a second dielectric layer is adjacent the metal plug with an upper electrode thereon.