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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 .
Caltech Intermediate Form (CIF) is a file format for describing integrated circuits. CIF provides a limited set of graphics primitives that are useful for describing the two-dimensional shapes on the different layers of a chip. The format allows hierarchical description, which makes the representation concise.
The netlist output can take any of many forms: a "simulation" netlist with gate-delay information, a "handoff" netlist for post-synthesis placement and routing on a semiconductor die, or a generic industry-standard Electronic Design Interchange Format (EDIF) (for subsequent conversion to a JEDEC-format file).
.bak, .bk – Bak file various backup formats: some just copies of data files, some in application-specific data backup formats, some formats for general file backup programs BIN – binary data, often memory dumps of executable code or data to be re-used by the same software that originated it
^ The primary format is binary, but text and JSON formats are available. [8] [9] ^ Means that generic tools/libraries know how to encode, decode, and dereference a reference to another piece of data in the same document. A tool may require the IDL file, but no more. Excludes custom, non-standardized referencing techniques.
The data for all these different aspects is stored in a collection of separate files within a specified hierarchy of file folders. [14] For simplified archiving and transmission the collection is usually packed in a single archive-file that preserves the file structure, for example using tar or gzip or both.
The classic format was used in the first netCDF release, and is still the default format for file creation. The 64-bit offset format was introduced in version 3.6.0, and it supports larger variable and file sizes. The netCDF-4/HDF5 format was introduced in version 4.0; it is the HDF5 data format, with some restrictions.
The format was created by Scott Ferguson and Daniel A. Chayes. [2] [3] The file format specifications and C source code for a library to read and write GSF files are available from Leidos, [1] who maintain both the format specification and the source code. [3] The GSF library source code is published under the GNU Lesser General Public License ...