| set db [dbDatabase_create] | |
| set libs [odb_read_lef $db $::env(MERGED_LEF)] | |
| set chip [odb_read_def $libs $::env(tapcell_tmp_file_tag).def] | |
| #set chip [odb_read_design $db $:env(MERGED_LEF) $::env(mplace_tmp_file_tag).def] | |
| odb_export_db $db $::env(pdn_tmp_file_tag).odb |