When I write SPICE deck from schematics I see only W, H As I understand for calculating for example area source and perimeter (AS,AD) the SPICE writer needs to know geometry of transistor or presume some default geometry. Out analog designers used to set up AS=.. AD=... with formulas calculating them from W,H and their particular MOSFET geometry. (they are often using ring transistors in 180nm tech)
Okay, if Electic is able to calculate these additional parameters in some cases, then guess it must be using extraction from layout to extimate areas and perimeters, am I right? On Wed, Oct 23, 2019 at 9:30 AM <[email protected]> wrote: > [email protected] > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/electricvlsi/topics> > Google > Groups > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!overview> > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!overview> > Topic digest > View all topics > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/electricvlsi/topics> > > - How to add params AS=.. PS=... to mosfet??? > <#m_-4873647509046363204_group_thread_0> - 2 Updates > > How to add params AS=.. PS=... to mosfet??? > <http://groups.google.com/group/electricvlsi/t/32c743138e109b1e?utm_source=digest&utm_medium=email> > Alexandre Rusev <[email protected]>: Oct 23 12:45AM +0300 > > Hello all! > > What is a regular way to add additional parameters to MOSFET in schematic > view? > I need PD=... AD=... (perimeter of drain, area of drain and others due to > insera them to SPICE model) likes in screenshot of S-edit > > > > Could anybody point me to the place in Electric manual to read about this > > > > > Confidential C > > -- Disclaimer ------------------------------------ > Ce message ainsi que les eventuelles pieces jointes constituent une > correspondance privee et confidentielle a l'attention exclusive du > destinataire designe ci-dessus. Si vous n'etes pas le destinataire du > present message ou une personne susceptible de pouvoir le lui delivrer, il > vous est signifie que toute divulgation, distribution ou copie de cette > transmission est strictement interdite. Si vous avez recu ce message par > erreur, nous vous remercions d'en informer l'expediteur par telephone ou de > lui retourner le present message, puis d'effacer immediatement ce message > de votre systeme. > > *** This e-mail and any attachments is a confidential correspondence > intended only for use of the individual or entity named above. If you are > not the intended recipient or the agent responsible for delivering the > message to the intended recipient, you are hereby notified that any > disclosure, distribution or copying of this communication is strictly > prohibited. If you have received this communication in error, please notify > the sender by phone or by replying this message, and then delete this > message from your system. > > ------------------------------ > > -- > James Bond > Steven Rubin <[email protected]>: Oct 22 04:27PM -0700 > > The SPICE writer calculates these values and puts them in the deck. If > you wanted other values, you would have to make them into "Variables" > which are values stored on Electric objects. You could even get the > SPICE writer to use them in a number of ways, but then you'd be > responsible for computing the proper values. Better to let the system do > the math. > > -Steven Rubin > > > On 10/22/2019 2:45 PM, Alexandre Rusev wrote: > Back to top <#m_-4873647509046363204_digest_top> > You received this digest because you're subscribed to updates for this > group. You can change your settings on the group membership page > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/electricvlsi/join> > . > To unsubscribe from this group and stop receiving emails from it send an > email to [email protected]. > -- You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/electricvlsi/CACoSTqK98tnt5TWPy1sGeYmscvrd-CsVuKuVx_cXDQfd24U0VA%40mail.gmail.com.
