Yes, it does examine all of the cell's geometry to calculate areas and
perimeters.
-Steve
On 10/27/2019 3:12 AM, Alexandre Rusev wrote:
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?
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* 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]
<mailto:[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
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Steven Rubin <[email protected]
<mailto:[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:
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