@User @User @User We were able to resolve the scaling issue by adjusting the Klayout db units. However during tapeout job now there are FOM denisty errors (all other checks are clear) as shown in the screenshot around our digital macro. How can we resolve these errors?

@User As you suggested few days ago that filling with only filler cells may generate FOM error. We have used both decaps and filler cells. (Decap_12 and filler fill_4, fill_2, fill_1)

For any one who might be facing similar issue, we have resolved this. @User can you please share which decaps and filler cells you have used in the final gds of your digital macro ?

First, we were using

sky130_fd_sc_hd__fill_8 sky130_fd_sc_hd__fill_4 sky130_fd_sc_hd__fill_2 sky130_fd_sc_hd__fill_1

as fillers, while using these cells, we were failing FOM density in final tapeout check. Now, we have changed the fillers to

sky130_fd_sc_hd__fill_1 sky130_fd_sc_hd__fill_2 sky130_fd_sc_hd__decap_3 sky130_fd_sc_hd__decap_4 sky130_fd_sc_hd__decap_6 sky130_fd_sc_hd__decap_8

, adding these cells instead of former ones have helped us to pass all prechecks and final tapeout checks.