Method for creating a layout for an electronic circuit

Details Method for creating a layout for an electronic circuit Method for creating a layout for an electronic circuit

2006-09-27

2009-02-10

Do, Thuan (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000, C716S030000, C716S030000, C716S030000

Reexamination Certificate

active

07490310

ABSTRACT:
The present invention relates to creating a layout of an electronic circuit from a netlist of interconnected components, wherein the components can be represented by planar geometric shapes in the layout. The advantages of the present invention are achieved by tightly coupling placement and routing. An initial placement of shapes of extended size is succeeded by a routing step that tries to create wires between shapes of reduced size. If that fails, it is tried to wire shapes of extended size instead. The wiring can be combined with a delta-placement of shapes within shapes of extended size such that wires connected to shapes of extended size also connect to the shapes.

REFERENCES:
patent: 5789770 (1998-08-01), Rostoker et al.

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