Invention Grant
US07882471B1 Timing and signal integrity analysis of integrated circuits with semiconductor process variations
有权
具有半导体工艺变化的集成电路的时序和信号完整性分析
- Patent Title: Timing and signal integrity analysis of integrated circuits with semiconductor process variations
- Patent Title (中): 具有半导体工艺变化的集成电路的时序和信号完整性分析
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Application No.: US11560261Application Date: 2006-11-15
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Publication No.: US07882471B1Publication Date: 2011-02-01
- Inventor: Vinod Kariat , Joel R. Phillips , Igor Keller
- Applicant: Vinod Kariat , Joel R. Phillips , Igor Keller
- Applicant Address: US CA San Jose
- Assignee: Cadence Design Systems, Inc.
- Current Assignee: Cadence Design Systems, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Alford Law Group, Inc.
- Agent William E. Alford
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
In one embodiment of the invention, a method of statically analyzing an integrated circuit with process and environment variations is provided. The method includes characterizing each circuit cell of a cell library for a sensitivity to process parameter variations within a predetermined range; creating a timing graph corresponding to a netlist representing an integrated circuit design; along nodes of the timing graph, computing delay values including sensitivities to process variations; for each selected output node of the netlist, propagating a full timing value function with the sensitivities to the selected output nodes; and generating a parameterized timing report including the sensitivities to the process variations.
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