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:
Jun. 10, 2003
Filed:
Nov. 22, 1996
John Edward Cronin, Milton, VT (US);
John Andrew Hiltebeitel, South Burlington, VT (US);
Carter Welling Kaanta, Colchester, VT (US);
James Gardner Ryan, Newtown, CT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A wiring structure with crossover capability is disclosed. The wiring utilizes a connection stud in a contact layer, beneath the plane of the otherwise-intersecting lines as a crossover. Thus, a first wire in a first metallization layer passes below a second wire in a second metallization layer by overlapping contact with the connection stud in the contact layer. In manufacturing the wiring structure of the present invention, no intervening insulative or via layers are used between the contact layer, the first metallization layer and the second metallization layer. However, care must be taken in device layout on the substrate to ensure that the connection stud is located above isolation areas rather than active device areas.