Gds Oasis
3 GDSII to OASIS Converter quot Performance and Analysis, Nageswara Rao G., Softjin Technologies, white paper. 4 OASIS vs. GDSII stream format efficiency, A.Reich amp al., Proceedings of SPIE Volume 5256 5 Improved file sizes and cycle times through optimization of GDSII Stream, Chin Le amp al., Proceedings of SPIE Volume 5992 About the
Switching from GDS to OASIS format can bring a host of benefits, but only if you make the right choices before you start The OASIS file format has now been around for over 15 years. Because it can help design teams produce dramatically smaller file sizes that load much more quickly, its popularity as an alternative to the GDS format is growing.
OASIS stands for Open Artwork System Interchange Standard. OASIS is similar to GDSII in function and purpose. OASIS is a new electronic pattern layout language created as a commercial successor to GDSII. It was developed to solve the problem of large GDSII files that were unable to keep up with the growth of integrated circuit layout complexity.
The OASIS file format is not as common as the GDSII file format. Handling of OASIS in the LayoutEditor. The OASIS files can be opened and saved with the normal file features. The OASIS file format stores a layer number to each element like polygon, path, etc. By default the LayoutEditor keeps these number untouched. Optional it is possible to
The Oasis file format is intended as the long-term successor to GDSII, which is now 30 years old. However, even though the first specification for Oasis was released in 2004, there is still a great deal of confusion and ignorance surrounding the standard. The article looks at the background of Oasis' development, identifies its strengths
GDS-to-OASIS Translator Available as Free Download from Mentor 4. Mentor Graphics Announces OASIS Stream File Format Ready for 5. OASIS-based data preparation flows Progress report on containing ----- Some papers are available. Mar 21, 2006 5 R. r_p_sanna Member level 3
OASIS offers the possibility to instantiate multiple occurrence of the same geometry 2. 2.2.1 Regular arrays. As in GDSII for matrix of cells, the basic repetition mode is a regular array. The great improvement of OASIS is to make this feature available for geometries also and to offer the possibility to describe non-orthogonal arrays.
The OASIS format has several features that help reduce file size compared to the GDS format. OASIS data represents numerical values with variable byte lengths, whereas the GDS format uses fixed byte lengths. OASIS functionality can also recognize complex patterns within a layout and store them as repetitions, rather than as individual instances
Know before you go Migrating GDS-based flows to OASIS. As chip designs increase in complexity, GDSII file sizes and layout loading times become increasingly important concerns during IC design verification. Switching to the OASIS file format and utilizing its optimization features can provide IC layout designers with dramatically smaller file
Yeah, OASIS is definitely more efficient. One thing you'll find interesting is that OASIS supports compression and repetition better than GDS. So if your design has a lot of repeated cells or patterns, OASIS will store them smartly without duplicating everything. We saved a lot of disk space when we moved from GDS to OASIS in our tapeouts.