Method and system for distributing clock signals on non Manhattan semiconductor integrated circuits
AssigneeCadence Design Systems, Inc.
InventorsSteven Teig, Raghu Chalasani, Akira Fujimura
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Abstract
The present invention introduces methods, systems, and architectures for routing clock signals in an integrated circuit layout. The introduced clock signal clock signal structures are rendered with non Manhattan routing. In a first embodiment, the traditional recursive H clock signal structure is rendered after transforming the coordinates system such that a rotated recursive H clock signal structure is rendered. In another embodiment, a recursive Y structure is used to create a clock signal structure. The recursive Y structure may also be implemented in a rotated alignment. For clock signal redundancy, non Manhattan wiring may be used to create a clock signal mesh network.
Claims11
A clock signal distribution network on an integrated circuit (IC) layout, said clock signal distribution network comprising:
- a collection of non Manhattan clock signal lines and a collection of Manhattan clock signal lines arranged to form a mesh;
- wherein the mesh defines a plurality of convex polygonal regions in the IC layout.
Dependencies are inferred from the claim text.