使用TSMC018 后仿真遇到SCA参数问题 无法仿真

坚强

如题，使用TSMC018工艺，画完layout，完成参数提取并作后仿真时遇到sca参数问题，spectre无法完成仿真并给出如下提示：

请问，该如何处理这个问题？求方法，谢谢！

Error found by spectre in `AAAAA':`I0', during hierarchy flattening.
    ERROR (CMI-2048): I0.I8_MM1@4 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM1@3 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM1@2 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM1 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM1@4 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM1@3 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM1@2 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM1 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM0@4 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM0@3 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM0@2 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I8_MM0 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM0@4 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM0@3 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM0@2 of AAAAA: Value of `sca' should be greater than or equal to zero.
    ERROR (CMI-2048): I0.I2_MM0 of AAAAA: Value of `sca' should be greater than or equal to zero.

jimipage

SCA参数是什么参数

2011302467

回复 1# 坚强


   您好，这个问题当时您彻底解决了没，现在我出现这个问题，有时候吧网表中的sca手动改下就可以了，有时候又不行，不知道深谋远虑

juniordapz

您好，我也遇到这个问题了，请问有什么解决方法吗

lxyyxl

楼上的各位大佬，这个问题解决了吗，解决方法是啥呢

模拟后端的小白

这个就是寄生参数提取问题，没有提取到的话后仿结果不对

夜冷了

后仿真提取的SCA 参数有问题‘’

q8097

夜冷了 发表于 2022-5-29 14:32
后仿真提取的SCA 参数有问题‘’

那这个应该怎么解决呢

ppppsky

q8097 发表于 2022-8-8 09:42
那这个应该怎么解决呢

如果不是太重要的管子直接改网表修改成SCA=0 SCB=0 SCC=0就可以了

ll李

ppppsky 发表于 2022-8-8 10:59
如果不是太重要的管子直接改网表修改成SCA=0 SCB=0 SCC=0就可以了

老哥这个现在有没有同意解决方法 谢谢