Automatic placement and routing apparatus automatically...

Details Automatic placement and routing apparatus automatically... Automatic placement and routing apparatus automatically...

2005-12-20

2005-12-20

Thompson, A. M. (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000

Reexamination Certificate

active

06978431

ABSTRACT:
A redundancy detection unit refers to layout data stored in a data storage unit and reflecting completed automatic placement and routing to detect a redundant region in a region having a cell arranged therein. An automatic insertion unit inserts in the detected redundant region a capacitive cell having a capacitive component and free of logic. As such a voltage drop can be reduced in a region scarce of LSI wiring resources. Furthermore, increased wiring capacitance can be provided without increased LSI chip area.

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