Caltech Intermediate Form

from Wikipedia, the free encyclopedia

Caltech Intermediate Form ( CIF ) is a machine-readable data exchange language for layout data in electronic design automation systems (EDA systems).

The Caltech Intermediate Form was developed between 1977 and 1981 at the California Institute of Technology by Carver Mead and Lynn Conway . Basic elements are colored polygons , circles , conductors and other symbols. A design can be structured hierarchically by nested calls of repeated or library parts, which can be locally geometrically transformed if necessary. CIF is mainly used at universities.

In the Y model , CIF covers the entire physical perspective. The Electronic Design Interchange Format (EDIF) developed from this language .

literature

  • Mead, C. and L. Conway: The Caltech Intermediate Form for LSI Layout Description; Introduction to VLSI Systems , (1980) pp. 115-127, Reading, Addison-Wesley, ISBN 0201043580 . (online [1] ; PDF; 5.98 MB)
  • Steven M. Rubin: Computer aids for VLSI design. (Appendix B) , Addison-Wesley 1987, ISBN 0201058243 . (online [2] )