Hi, @Tim Edwards @Mitch Bailey Excuse me, I am doing the LVS of the low-drop out regulator (LDO) however I found the shown result (only in a resistance ). Does it mean I have to change the name of "sky130_fd_pr__res_xhigh_po_0p69"? Or how i can to fix it? Thanks

Exactly! Since gds does not have the magic resistor recognition layers, the schematic needs to be modified to match. (I’ve been trying to figure out how to do this automatically, but it’s not working yet.) You can use this command to modify the file in place.

sed -i.bak 's/sky130_fd_pr__res_xhigh_po_0p69/sky130_fd_pr__res_xhigh_po W=0.69/' ldo_v2_xschem.spice

Thank you @Mitch Bailey I have updated name of the resistor. Then, I have rechecked the LVS and found this shown error. Does this error due the name of the resistor? or there is another reason!

Looks like there’s a dummy resistor with both terminals connected to GND in the layout that does not exist in the schematic.

Thank you for your guidance. Here, Circuits match uniquely. However, property errors were found.

pnp area property not extracting correctly is a known problem. Your parallel/series resistor reduction might be a real mismatch. What version of netgen are you using?

netgen -batch

@Mitch Bailey Recently, Version of netgen is updated to "Netgen 1.5.217 "! I used the following commands to install recent netgen tool.

git clone <https://github.com/RTimothyEdwards/netgen.git>
cd netgen
./configure --prefix=<install_path>
make 
make install

Should I use another command to update the tool?

Netgen 1.5.242

is what I’m using.

<install_path>

is not a literal. It’s the path to your installation directory. If

which netgen

returns

/usr/local/bin/netgen

, your

<install_path>

will be

/usr/local

Yes, I updated the netgen to 1.5.242. However, I noticed that property errors are found.

There was an issue with a previous version of magic that only extracted partial gates. Don’t know if that’s the same issue you’re having with resistor lengths. Are you using the latest version of magic? If you are, can you open your design in magic and show the the resistor devices one layer at a time to see any unexpected results.