Table of Contents Author Guidelines Submit a Manuscript
ElectroComponent Science and Technology
Volume 4, Issue 3-4, Pages 151-156

CALHYM: A Computer Program for the Automatic Layout of Large Digital Hybrid Microcircuits

Katholieke Universiteit Leuven, Departement Elektrotechniek, Adfeling E.S.A.T., Kardinaal Mercierlaan 94, Heverlee 3030, Belgium

Received 6 April 1977; Accepted 5 June 1977

Copyright © 1977 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Using a library of available I.C. chips, and a network description of the circuit in terms of these chips, the program CALHYM produces a 100% complete layout of a multilayer hybrid microcircuit in three steps: the partitioning of the logic functions into library chips, the placement of the used chips on the substrate and the routing of the interconnections.

CALHYM is written in Fortran IV and runs on a minicomputer with interactive graphic facilities.