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:
Apr. 16, 2002
Filed:
Jun. 14, 1999
Nippon Steel Corporation, Tokyo, JP;
Abstract
A semiconductor device includes first and second conductive layers which are electrically connected to each other through a contact plug. A first insulating film is formed on the first conductive layer and has a first opening which reaches the surface of the first conductive layer. A second insulating film is formed on the first insulating film and has a second opening at the same position as the first opening. The contact plug is filled in the first and second openings and has the surface which is substantially flush with the surface of the second insulating film and also contains a metal having a high melting point. The second conductive layer is formed on the second insulating film and on the contact plug.