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. 22, 2007
Filed:
Sep. 12, 2003
Luca Pividori, Curno, IT;
Luca Pividori, Curno, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A method is provided for contact opening definition for active element electrical connections. According to the method, a layer of BPSG is formed on a surface of an integrated circuit, and a transparent layer of nitride UV is formed above the layer of BPSG. Preferably, the transparent layer of nitride UV is formed by deposition using an HDP process and has a thickness of less than about 500 Å. In one embodiment, after forming a transparent layer of nitride UV, two overlapped layers of BARC and resist are formed on the surface of the integrated circuit. Also provided is a machine-readable medium encoded with a program for contact opening definition for active element electrical connections.