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. 07, 2004
Filed:
Nov. 21, 2000
Daniel A. Jochym, Dowingtown, PA (US);
James C. Witte, Phoenixville, PA (US);
Michael John Bradley, Phoenixville, PA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A computer-aided design (CAD) tool is used to create a preliminary design of a mulit-layered printed circuit board, comprising a layout of electrical components on a main region of a printed circuit board and a routing of signal traces among the lectical components within the main region. An extended region is then added to the design on the CAD tool that comprises a layout of selected debug connectors on the extended region and at least one additional signal layer. Traces connecting the debug connectors to selected vias of the main region of the printed circuit board are then routed on the added signal layer only. A prototype board is then created and tested. Once testing is complete, the extended region and the at least one additional layer are removed from the design in the CAD tool without disturbing the layout of components and routing of signal traces on the main region of the printed circuit board.