i am using Orcad Layout15.7. Now i am handling FPGA based project.My project side i am using following fpga Packages FTG256 (Pitch 1mm) and VFBGA54 (Pitch 0.75mm). i am using track width 4mils and via size 18/8Mils. i started routing online drc time routing not accepted please tell me routing is possible are not suggestion and solutions.
Note: I am using Orcad Layout (not allegro and Orcad pcb editor)