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:
Nov. 16, 2021
Filed:
Oct. 08, 2019
International Business Machines Corporation, Armonk, NY (US);
Thomas Makowski, Pfullingen, DE;
Matthias Ringe, Tuebingen, DE;
Andreas H. A. Arp, Nufringen, DE;
Michael V. Koch, Ehningen, DE;
Fatih Cilek, Boeblingen, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments are disclosed for routing a cell of a semiconductor chip, the cell being represented by a matrix, encoding first tracks of the cell as columns of the matrix and second tracks of the cell as rows of the matrix, respectively. The method includes performing a sweep operation on the matrix, the sweep operation including generating an index structure indexed by columns of the matrix, the index structure including information on candidate cut shapes that can be placed in a particular column of the matrix. Additionally, the method includes recursively placing cut shapes into the cell based on the index structure, one recursion of the placing including finding a possible cut shape and recursively placing the remaining cut shapes.