Do you have to use .del lib in Spice ?

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dreamheater

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SPICE question: .del lib

When running different process corners using .alter to switch in-and-out different libraries (such as TT, SF, FS, FF, SS), is it necessary to use .del lib to delete the previous libraries? SPICE seems working fine without the .del lib command cards. The .del lib makes running process corners very inconvenient because I have to know which libraries proceed this .alter and then delete them.
 

Re: SPICE question: .del lib

it seems no necessary
 

Re: SPICE question: .del lib

Personally I recommend using .del lib before switching to other process corner since it is always good practice to make your spice deck more readable.

My best guess is: if you do not use .del lib before switching to other process corner, it may occupy more memory than necessary which will increase the computation time at least.

regards,
jordan76
 

Re: SPICE question: .del lib

I think you should use the .del command.

If you do not use the .del , and only user the .alter to change the technology , the corner undelted is simulated repeatly.
 

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