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I have a .LEF File which has various metals description and their parasitics information. I am trying to calculate R. It is specified as RPERSQ = 0.278. In the File description it is written as Units of Resistance is Ohms and also resistancePrecision = 1000000.
I think that RPERSQ = 0.278 is not ohms and it has something to calculate with the resistancePrecision. Can anyone please help me on this.

Thanks, Ramu

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RESPSQ is resistance per square. It is common to describe sheet resistance as ohms/square or \$ \cfrac{\Omega}{\Box}\$ as the size of the square does not matter.

You can find more about it here: Sheet Resistance wikipedia page

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  • \$\begingroup\$ Thank you for your reference, But do we need to take into consideration the resistancePrecision. I couldn't get what that term is actually \$\endgroup\$ – gudipati ramu Oct 6 '17 at 18:01

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