GDS II stream format, common acronym GDSII, is a database file format which is the integrated circuit industry de facto standard for IC layout data exchange. It was originally developed by Calma for its layout design software, "Graphic Data System" ("GDS") and "GDS II". Now the format is owned by Cadence Design Systems. GDS II is a binary file format representing planar geometric shapes, text labels, and some other information - in hierarchical form. The objects are grouped by numeric attributes… (More on Gdsii)