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Help: Creating Rectangle with nano-meter (nm) values

frasheed

 Hello,

I wrote a skill code in which I was creating rectangle using skill code:

 rodCreateRect(?name "rec" ?cvId geGetEditCellView() ?layer list("M1" "drw") ?width 5 ?length 5 )

 I was not using any units with width and length but now I want to use nano-meter units and this command is giving warning

*WARNING* rodCreateRect: ?width: zero value not allowed - 0

*WARNING* rodCreateRect: ?length: zero value not allowed - 0

*WARNING* rodCreateRect: command failed

 

Why is this so ? I am using 32nm technology library.

 

Thanks

  • So what did you actually use? The numbers for ?width and ?length need to be in UserUnits - so if you do:

    geGetEditCellView()~>userUnits

    it will probably return "micron". If so, 5nm would need to be specified as 0.005 - if you enter it as 5n, it will be below a database unit (see geGetEditCellView()~>DBUPerUU - this will probably be 1000.0 or 2000.0 - that's the number of database units per user unit, so in my case I have 2000 database units per micron - so a resolution of 0.5nm. If I'd entered 5n as the value, that would be treated as 5 femtometres, which is smaller than the database resolution (and a bit tricky to manufacture too!)

    Andrew.

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