Apparatus and Method for preventing Congestive Placement
AssigneeMStar Semiconductor, Inc.
InventorsChen-Hsing Lo, Chien-Pang Lu
Life of this patent
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Abstract
A congestive placement preventing apparatus for modifying a circuit layout includes an analyzing module, a defining module and an extension module. The analyzing module performs a congestion analysis on the circuit layout to generate an analysis result. The defining module defines a congestion region and a share region adjacent to the congestion region on the circuit layout according to the analysis result. A density of electronic cells of the congestion region is higher than that of electronic cells of the share region. The extension module arranges a plurality of electronic cells in the congestion region to the congestion region and the share region, thereby reducing the density of electronic cells in the congestion region.
Claims20
A congestive placement preventing apparatus, for modifying a circuit layout, the apparatus comprising:
- an analysis module, for performing a congestion analysis on the circuit layout to generate an analysis result;
- a defining module, for defining a congestion region and a share region adjacent to the congestion region on the circuit layout according to the analysis result wherein the congestion region includes electronic cells;
- and
- an extension module, for arranging the electronic cells in the congestion region to the congestion region and the share region.
A method for preventing congestive placement, for modifying a circuit layout, the method comprising:
- performing a congestion analysis on the circuit layout to generate an analysis result;
- defining a congestion region and a share region adjacent to the congestion region on the circuit layout according to the analysis result, wherein the congestion region includes electronic cells;
- and
- arranging the electronic cells in the congestion region to the congestion region and the share region.
Dependencies are inferred from the claim text.