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:
Nov. 07, 2000
Filed:
Jul. 07, 1999
Shih-Ying Hsu, Hsinchu, TW;
United Microelectronics Corp., Hsinchu, TW;
Abstract
A method of forming a buried contact. A substrate has an oxide layer and a first conductive layer thereon, and an isolation region is formed in the first conductive layer, the oxide layer and the substrate. A patterned first mask layer with an opening is formed over the substrate. A portion of the isolation region and a portion of the first conductive layer are exposed. An ion implantation process is performed to form a buried contact within the substrate, and then the portion of the isolation region exposed by the opening is removed to form a trench in the isolation region. The patterned mask layer is removed, and next a second conductive layer is formed over the substrate and fills the trench. The second conductive layer and the first conductive layer are patterned to form a conductive wire and a gate, wherein the conductive wire electrically connects with the buried contact.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile