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:
Feb. 16, 2016
Filed:
Jun. 20, 2013
G-analog Design Automation Limited, Hsinchu, TW;
Jeh-Fu Tuan, San Jose, CA (US);
G-Analog Design Automation Limited, Hsinchu, TW;
Abstract
A method for migrating a hierarchical layout between manufacturing processes is accomplished without specification of a technology file and design rules. Different scaling factors and bias values in the X and Y directions may be applied to each layer in the source hierarchical layout during the migration. In addition, the target hierarchical layout maintains connectivity, and is free of notches, jogs and small edges. A cell hierarchy tree is created, which guides expansion of the target hierarchical database to resolve issues related to rounding of floating point numbers to integers. Boolean operations are performed to determine the differences between target flat database and the target hierarchical database. The differences are eliminated by modifying the target hierarchical database to match the layout in the flat database.