发明申请
US20130104092A1 METHOD, SYSTEM AND PROGRAM STORAGE DEVICE FOR PERFORMING A PARAMETERIZED STATISTICAL STATIC TIMING ANALYSIS (SSTA) OF AN INTEGRATED CIRCUIT TAKING INTO ACCOUNT SETUP AND HOLD MARGIN INTERDEPENDENCE 失效
方法,系统和程序存储设备,用于执行进入帐户设置的集成电路的参数统计静态时序分析(SSTA)并保持标准间隔

METHOD, SYSTEM AND PROGRAM STORAGE DEVICE FOR PERFORMING A PARAMETERIZED STATISTICAL STATIC TIMING ANALYSIS (SSTA) OF AN INTEGRATED CIRCUIT TAKING INTO ACCOUNT SETUP AND HOLD MARGIN INTERDEPENDENCE
摘要:
In embodiments of a statistical static timing analysis (SSTA) method, system and program storage device, the interdependence between the setup time and hold time margins of a circuit block (e.g., a latch, flip-flop, etc., which requires the checking of setup and hold timing constraints) is determined, taking into account possible variations in multiple parameters (e.g., using a variation-aware characterizing technique). A parameterized statistical static timing analysis (SSTA) of a circuit incorporating the circuit block is performed in order to determine, in statistical parameterized form, setup and hold times for the circuit block. Based on the interdependence between the setup and hold time margins, setup and hold time constraints can be determined in statistical parameterized form. Finally, the setup and hold times determined during the SSTA can be checked against the setup and hold time constraints to determine, if the time constraints are violated or not and to what degree.
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