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:
Dec. 21, 1999
Filed:
Nov. 01, 1996
Mohankumar Guruswamy, Austin, TX (US);
Daniel Wesley Dulitz, Austin, TX (US);
Andrea Fernandez, Austin, TX (US);
Srilata Raman, Austin, TX (US);
Robert L Maziasz, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method for automatically selecting tie styles used during the horizontal placement of substrate and well ties. A linear order of tie styles is determined (2422). Ties are placed horizontally in the layout based upon an initial tie style (2424). Route and compact layout components (2426). If the layout has satisfied the tie coverage rules (2428) the tie style selection process is complete. Otherwise, contacts, vias and ties are added where possible (2430). If the layout has now satisfied the tie coverage rules (2432) tie style selection process is complete. If not, the next tie style is chosen from the linear order (2434). The process continues by placing (2424), routing and compacting components (2426) with the new tie style, until the cell satisfies the tie coverage rules.