Spine selection mode for layout editing

Details Spine selection mode for layout editing Spine selection mode for layout editing

2008-07-07

2010-12-28

Chiang, Jack (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000, C716S030000

Reexamination Certificate

active

07861205

ABSTRACT:
Methods, software, and systems implementing software provide for accepting a user's selection of a database object defining layout being displayed. The database objects can include objects defining paths and path segments. Automatic layout tools may be used in creating at least some of the objects. The user's selection begins a recursive process of automatically selecting additional database objects based on criteria designed to create an uninterrupted spine from database objects on a single interconnect layer, of the same width, and collectively arranged such that the spine has a first end and a second end, and can be traced from the first end to the second end without backtracking.

REFERENCES:
patent: 6678876 (2004-01-01), Stevens et al.
patent: 7257797 (2007-08-01), Waller et al.

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