OASIS Improvements over GDSII
- Squeeze out all wasted bits and redundant records.
- Support two-dimensional figure arrays
- Support vertical and horizontal trapezoid primitives
- Support step-and-repeat figure description
- Relax 16- and 32-bit integer restrictions
- Use variable-width integers (8-64 bits)
- Allow relative (Dx,Dy) coordinates in both step/repeat & figures
- Relax restrictions on string length, including cell names
- Relax restrictions on number of polygon vertices
- Use IEEE standard 64-bit floating point numbers
- Support layer name & purpose information
- Support arbitrary named properties, integer & floating values
- Support embedded comments
- Support Block-level compression
OASIS (Open Artwork Systems Interchange Standard) is the successor to the layout format GDSII. It is a standard, SEMI P39 that is administered by the standards and trade organization, SEMI, San Jose. The standard must be purchased. The link above will help with its purchase.
To the right is a list of improvements that had been considered and have been implemented by the OASIS Working Group. The OASIS Working Group is an all-volunteer team. SEMI hosts the Group's meetings. Typically, they're held at SEMI headquarters in the United States or Japan. The meetings can be attended via SEMI's teleconferencing capabilities as well.
SEMI administers the standard including the formalized balloting of proposed changes to the new format. The Chair of the OASIS Working Group is Thomas Grebinski. Click on the above request for information. You'll be added to the OASIS Working Group e-mail list. The Group meets on an as-needed basis.
The greatest advantages that OASIS has over GDSII are its ability to compact integrated circuit design layout data by 10-50x and the release of its 16- and 32-bit limitations to X-bit. At this time, the industry is moving to 64-bit.
ABOUT OASIS SEMI P39
Purchase
SEMI OASIS P39
Library Release
Layout Integration
RTL / Logic
Floor Planning
Tapeout
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"The Company's technology established a common expectation amongst suppliers and customers regarding matters of OASIS compliance, performance and interoperability"
Naoya Hayashi
Electronic Device Laboratory
Dai Nippon Printing Co., Ltd
3rd Party IP / Fabless / System OEM
Foundry / IDM Factory
Verilog
VHDL
Liberty
Liberty
LEF
GDSII
OASIS
Structured NetList
DEF
Structured NetList
PDK
PDK (e.g.)
SPICE
Design Rule Deck
Circuit Extraction Parameters
Control Files
OASIS
GDSII
PDK
Library Development
OASIS
GDSII
Add me to the OASIS Working Group mailing list.
The diagram above shows the insertion points (in red text) for OASIS. EDA, Wafer and Mask tools read and write OASIS data. Foundries, IDMs, Fabless, 3rd Party IP suppliers use OASIS technology for internal tool development and compliance verification.
OAS = OASIS
GDS = GDSII
Workflow Auditor Point Tools
®
TM
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NEW at Yotta Data Sciences
* US Patents 9,122,825, 8,555,219, 8,266,571 and 7,685,545.
International Patents: China 200980129771.8, Japan 4768896, Korea 10-1580258, Israel 209907, European Patent 2310967.
OASIS® is a Registered Trademark of Thomas Grebinski
© 2008-2024 Yotta Data Sciences, Inc. All rights reserved.
February 16, 2024- Yotta is offering, to qualified partners, a six-month evaluation-period, with support, for its SEMI P39-0416 OASIS Reader/Writer Source Code.
Visit Page: OAS Reader/Writer
Visit Page: OAS Source Code
