Interoperable physical design database between OpenAccess and Milkyway

摘要

In the world of mixed signal design, physical design database transfers between custom (Cadence OpenAccess (OA)) and ASIC (Synopsys Milkyway (MW)) are frequently needed for the completion of a design. The traditional method of using only GDSII as the transfer medium has many disadvantages, such as lost connectivity information and net-texting inconsistency. This paper describes a methodology for transferring the database in the most efficient way, retaining the information in the database, ensuring the correctness of the database.