Extracting a net with Mentor Calibre ?

Hello All,

I submit my request here regarding Calibre because i can not get
answer on Mentor's web site...

I would like to extract one net with Calibre, and create a gdsii with
all the geometries connected to this net.

I played with options of my drc.svrf, and i can create a gds with
metal 1 only if i want.
But i can not extract one net.

Could you help me please ? Here the options i used to extract net VDD
on metal4:


M4_PWR = NET M4 "VDD"
save_m4_pwr { COPY M4_PWR }
DRC CHECK MAP save_m4_pwr GDSII 34 0 MYGDS.gds MAXIMUM RESULTS ALL

I don't know what's wrong. According to Calibre's SVRF manual, option
NET is the right one to use.

I tried to change the layer of my pin in Metal4 drawing, metal 4 pin,
but my gds is always empty.

do you have ideas please ?

Thanks and regards,

b.

 

Hi,

net is the right thing to use but you also need to make sure the net
(pin) name is being picked up and also build the connectivity in the
design. Here is a how I've done it after getting an example form my
AE. You may have to change this to fit your gds/process - how pin's
are attached, metal resistors etc.

// Control the text
TEXT DEPTH PRIMARY

// define metalN pin layers as text and attach to the metal
conectivity
TEXT LAYER 161 ATTACH 161 met1
TEXT LAYER 162 ATTACH 162 met2
TEXT LAYER 163 ATTACH 163 met3

// Connect statements - wire things up
CONNECT met3 met2 BY via2
CONNECT met2 met1 BY via1

// build rule to trace through the signal on each metal layer
signal_metal1 { NET met1 '<SIG1>' }
signal_metal2 { NET met2 '<SIG1>' }
signal_metal3 { NET met3 '<SIG1>' }

// write out to layers m1...
DRC CHECK MAP signal_metal1 61 0
DRC CHECK MAP signal_metal2 62 0
DRC CHECK MAP signal_metal3 63 0

chees
G

 

Hello G,

thanks a lot for your answer. Indeed, my text layers were not
attached !

All is fine now


thanks again,

bu.