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.

Date of Patent:
Dec. 29, 2020

Filed:

Oct. 07, 2019
Applicant:

Synopsys, Inc., Mountain View, CA (US);

Inventors:

Kai-Ping Wang, Fremont, CA (US);

Haiying Liu, Sunnyvale, CA (US);

Assignee:

Synopsys, Inc., Mountain View, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 30/30 (2020.01); G06F 30/398 (2020.01); G06F 111/20 (2020.01); G06F 119/08 (2020.01);
U.S. Cl.
CPC ...
G06F 30/398 (2020.01); G06F 2111/20 (2020.01); G06F 2119/08 (2020.01);
Abstract

Techniques and systems for inserting repeaters in an integrated circuit (IC) design are described. Some embodiments can place a snapping region in the IC design, wherein the snapping region includes a predetermined arrangement of feasible grid regions and blocked grid regions, and wherein repeaters are allowed to be placed in feasible grid regions but not in blocked grid regions. Next, the embodiments can iteratively perform a set of operations, comprising: selecting a net from a set of nets; determining an initial location for inserting a repeater in the net; identifying an unoccupied feasible grid region in the first snapping region that is closest to the initial location; and inserting a repeater in the net in the unoccupied feasible grid region.


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