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GDSII file extension - VLSI cad layout format (for integrated circuits)

What is gdsii file? How to open gdsii files?

File type specification:

3d graphics, CAD-CAM-CAE file type icon 3d graphics, CAD-CAM-CAE file type

The gdsii file extension is associated with GDSII, which is the standard file format for transferring / archiving 2D graphical design data. It contains a hierarchy of structures, each structure containing elements situated on layers. It is a binary format that is platform independent, because it uses internally defined formats for its data types.

The pattern data is considered to be contained in a library of cells. Cells may contain geometrical objects such as polygons (boundaries), paths, and other cells. Objects in the cell are assigned to layers of the design. Different layers typically represent different processing steps for exposure on separate mask plates. Geometrical objects may also be tagged with datatypes, which can be used for any purpose, but are most commonly used to group together similarly sized objects for compensation of the proximity effect.

The GDSII format specification limits the number of vertices per polygon (boundary) and wire (path) to not more than 200 pairs of coordinates. However, many packages, including LinkCAD, can read up to the technical maximum of 32,766 coordinate pairs. By default, when exporting to GDSII, LinkCAD will not write more than 200 vertices and larger polygons and wires are split into fragments. You may remove this limitation in the GDSII export options.

Help how to open GDSII files:

Currently there is no specific information available, about how to open files with this particular extension. However, you can usually open or import 3D graphics files to various 3D modeling tools or engineering programs. Each program has it's own set of supported formats, so it's always worthwhile to check it's developer websites for available options.

For general information try to look at:
Basic info how to open CAD and other 3D graphic files

How to convert file with extension GDSII:

Various 3D models or CAD files can be typically exported to some exchange format or converted between different formats. Once again, not all CAD/3D modeling programs may allow conversion of every format. But, there is always the option of using some of the dedicated 3D conversion utilities with a broad file format support.

For general information try to look at:
Basic info how to convert CAD and other 3D graphic files

Related links:

LinkCAD website

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