Open Artwork System Interchange Standard

Open Artwork System Interchange Standard (OASIS (TM)) is a specification for hierarchical integrated circuit integrated circuit layout data format for interchange between electronic design automation software, IC mask writing tools and mask inspection tools.

The name is the trademark of [http://www.semi.org SEMI]. It is developed by SEMI for microelectronics/Fabrication (semiconductor) as a replacement for GDSII format, the IC industry de facto standard for IC layout data exchange for more than two decades.

Like GDSII, OASIS (TM) is a hardware- and software-independent binary data format.

It delivers the following improvements over GDSII: *Up to 10 times smaller file sizes *Support of 64-bit arithmetics *Richer data format for exchange of information between design and manufacturing stages.