I am getting super desperate, sorry. As my original project did not work with the precheck I created a new one. But it still refuses to do the precheck. The project is: https://platform.efabless.com/projects/1074

Hello @Martin Schoeberl, may I know what exactly are you writing down in the form to submit the mpw-precheck. I would like to help you get through asap. A screenshot would help immensly

Ooh, I think I found the error. I had a space in my job description! Thanks for kind of pointing me to the right direction.

@Martin Schoeberl great, I am glad we got through that, I hope you get your tapeout in time, 🙏

I hope as well that we make the tapeout, however, we are still fighting precheck errors:

STDOUT: {{FAILURE}} 2 Check(s) Failed: ['XOR', 'Klayout Metal Minimum Clear Area Density'] !!!

:-(

oh, I hope you can get those fixed in time, 🤞

@Martin Schoeberl does your design have many

decap_12

cells?

Mmh, I don’t know. How can I check? I am just a digital designer spilling out Verilog code from a Chisel description.

maybe

grep -c decap_12 verilog/gl/user_project_wrapper.v

?

That gave: 484523 Is this a lot?

LOL. yep. You can try changing

sky130_fd_sc_hd__decap_12

to

sky130_ef_sc_hd__decap_12

or remove

sky130_fd_sc_hd__decap_12

from the valid decap list.

Simplest way would be to open the GDS in KLayout then delete the content of the original cell. Then copy EF variants' content to the fd cell. This is the most simple way of doing it.