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:
Sep. 26, 2000
Filed:
Dec. 29, 1997
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
A process creates contacts in semiconductor electronic devices and in particular on bit lines of non-volatile memories with cross-point structure. The cross-point structure includes memory cell matrices in which the bit lines are parallel unbroken diffusion strips extending along a column of the matrix with the contacts being provided through associated contact apertures defined through a dielectric layer deposited over a contact region defined on a semiconductor substrate at one end of the bit lines. The process calls for a step of implantation and following diffusion of contact areas provided in the substrate at opposite sides of each bit line to be contacted to widen the area designed to receive the contacts.