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i'm looking to use Skill to calculate the total active area & resistor area down the hierarchy of the schematic and allow me to make a initial guess at layout area, by adding in a fudge factor based on previous chips.
The flow i have in my mind is find every device type on my list (e.g nmos1, pmos1, res1, nmos_high_voltage....etc) then for each isntance arrive at an area by doing "W x Lx Fingers x Multiples=Area", then adds these all together to get a total area.
The complication's i can forsee are:
units: for example if one parameter is in um and another in nm, i'd need to standardise
hierarchy: so far i can get W & L at the top level of the schem but not down the hierarchy. Also how do i handle cell repition or even multiple instances of the same cell using the Intsance_name<0:9> as a quick way to represent 10 same type symbols.
resistors: they don't have the "F" fingers parameter, don't want the Skill to fall over due to this.
Any guidance is glady received
You will find similar question in this forum.... with the following subject
" How to calculate given schematic area? "
Mr. Andrew guided me to achieve this....
Prabhakar. K -- Layout Engineer