Invention Grant
- Patent Title: Apparatus and method thereof for hybrid timing exception verification of an integrated circuit design
- Patent Title (中): 用于集成电路设计的混合定时异常验证的装置及方法
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Application No.: US14047396Application Date: 2013-10-07
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Publication No.: US09208272B2Publication Date: 2015-12-08
- Inventor: Mohamed Shaker Sarwary
- Applicant: Synopsys, Inc.
- Applicant Address: US CA Mountain View
- Assignee: Synopsys, Inc.
- Current Assignee: Synopsys, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Fenwick & West LLP
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F17/50

Abstract:
Timing Constraints are crucial to meet timing requirements of an Integrated Circuit (IC). Timing exceptions are specified so that certain paths of the design of the IC are not timed as they are not relevant for the speed of the IC. If a path is specified as an exception but it is indeed a timing-relevant path then the design may functionally fail due to timing violations ignored by the timing analysis tools. It is therefore extremely important to ensure that all timing exceptions are correctly specified. The Hybrid Timing Exceptions Verification uses static verification as well as dynamic verification to effectively verify correctness of such timing exceptions. The solution pin-points the errors in the exceptions specification with very low number of false errors that would require significant designer inputs and time to manually waive them.
Public/Granted literature
- US20140040841A1 APPARATUS AND METHOD THEREOF FOR HYBRID TIMING EXCEPTION VERIFICATION OF AN INTEGRATED CIRCUIT DESIGN Public/Granted day:2014-02-06
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