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GDS II Stream Format
GDSII stream format (GDSII), is a binary database file format which is the de facto industry standard for electronic design automation, electronic design automation (EDA) data exchange of integrated circuit, integrated circuit (IC) or IC layout artwork. It is a binary file format representing planar geometric shapes, text labels, and other information about the layout in hierarchical form (two-dimensional/2D CAD file format). The data can be used to reconstruct all or part of the artwork to be used in sharing layouts, transferring artwork between different tools, or creating photomasks. History GDS = Graphic Design System (see [GDS78]) Initially, GDSII was designed as a stream format used to control integrated circuit photomask plotting. Despite its limited set of features and low data density, it became the industry conventional stream format for transfer of IC layout data between design tools of different vendors, all of which operated with proprietary data formats. It was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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Calma
Calma Company, based in Sunnyvale, California, was, between 1965 and 1988, a vendor of digitizers and minicomputer-based graphics systems targeted at the cartographic and electronic, mechanical and architectural design markets. In the electronic area, the company's best known products were GDS (an abbreviation for "Graphic Design System" ), introduced in 1971, and GDS II, introduced in 1978. By the end of the 1970s, Calma systems were installed in virtually every major semiconductor manufacturing company. The external format of the GDS II database, known as GDS II Stream Format, became a ''de facto'' standard for the interchange of IC mask information. The use of this format persisted into the 21st century, long after the demise of the GDS II computer system. In the Semiconductor industry, integrated circuit industry jargon of 2008, "GDS II" referred no longer to the computer system, but to the format itself. Vendors of electronic design automation software often use the phra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |