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:
Jul. 11, 2000
Filed:
Jun. 14, 1999
United Microelectronics Corp., Hsinchu, TW;
Abstract
A method of forming metallic capacitor. The method includes forming a lower electrode for forming the capacitor and a metal conductive line over an inter-layer dielectric such that there are gaps between and on the sides of the lower electrode and the metal conductive line. Thereafter, a first oxide layer is formed that fills the gap, and then a second oxide layer is formed over the inter-layer dielectric. The second oxide layer is later patterned to form a cap oxide layer having an opening that exposes a portion of the lower electrode. Subsequently, a thin dielectric layer is formed over the lower electrode and the cap oxide layer. Finally, an upper electrode is formed over the thin dielectric layer filling the opening.