Hi @Tim Edwards @Mitch Bailey I am running a local precheck on my design and three checks

LVS, klayout feol, klayout beol

are failing. The LVS check is failing because there is a property error in PNP transistor due to

missing "m"

. This was fixed in latest netgen update but the issue is still present while running precheck. Please find the attached reports for klayout feol and klayout beol checks. I do not understand the issue. I have updated my

mpw_precheck

folder using

make precheck

command and the current version is

4efb33553ee6c2acdb0fa9a6a5f87af099f5c1d5

. Why the klayout drc is failing when magic has a clean drc report in sky 130 process? Please help me with the issue. I have to submit my design in 3rd June chipignite shuttle. Edit : I did find the error using the .xml file and loading marker in klayout. Can you please tell me what are the

psdn

and

hvi

layer in magic?

PSDN

is an implant layer, and magic generates those automatically. There are several circumstances in which magic will generate improper implant layers, usually due to interactions with layouts that were not done using magic (the most common way to get this to happen is to use standard cells in an analog layout without properly aligning the standard cells in complete rows and columns as they are intented to be placed). There is a way to solve such issues within magic, but your solution of directly editing the GDS in klayout also works.

@Tim Edwards Thank you so much for your reply. What is the way to solve the fix the implant layer issue in magic? Is there any way to update the LVS run in precheck since while running separately, LVS is clean (No property error).

@naina singhal although implant layers are automatically created when magic converts magic data to gds data, you can use the MASK_HINTS property to explicitly create a pattern that will be output to gds. with this, you won’t need to modify the data with klayout every time you recreate the gds. You can use ‘cif see <layer>’ to view the pattern that will actually be output. ‘feedback clear’ to remove the markers.