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:
Feb. 03, 2004
Filed:
Mar. 02, 2001
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
The method applies to non-volatile semiconductor memories with cells arranged in rows and in columns, in which each cell has a first terminal, a second terminal, and a third terminal connected, respectively, to a row line, to a column line, and to a common node by respective connection strips. In order to form connections with low resistivity and consequently to save semiconductor area, the method provides for the formation of an oxide layer which covers the connection strips of the first terminals and of the third terminals, the formation of channels along the connection strips until the surfaces thereof are exposed, and the filling of the channels with a material having a resistivity lower than that of the connection strips.