@Mitch Bailey @mehdi, Hi Mitch, I meet an lvs problem, the number of devices and nets is the same, but the report tells me there are some mismatches in the nets, I find there are some mismatches in the MOSFET, but still don't know what's wrong with it. Attach my lvs report

Looks like your layout has been flattened before extracting. If it's possible, hierarchical lvs would be easier to debug. You can also

export NETGEN_COLUMNS=60

to get wider columns in the lvs report.

The hierarchy one have some mismatches because of different hierarchical structure, so I flattened it and get the right number of nets and devices....

Small differences in hierarchy will automatically resolve at higher levels. You can also match circuits even if the names aren't the same.

OK, let me change the hierarchy in GDS manually to match it, thank you Mitch!