CAD

Apollo Photonics Inc.
Provides optoelectronic systems and photonic devices design tools and services, including commercial CAD package. Includes product descriptions and capability statements.
http://www.apollophoton.com/

Design Automation Conference
The major commercial show and academic conference.
http://www.dac.com

DURST CAD/CONSULTING GmbH
Develops HYDE, a design system for thin and thick film hybrid circuits, MCMs and LTCCs. Provides integrated modules for the creation of electrical schematics and mechanical drawings, parts database and preprocessing options. Includes product and product option specifications and screenshot examples.
http://www.durst.de/

Electronic CAD & Reliability Group
Investigating test of digital circuits, high-level system design, parallel processing, reliability, functionality and algorithms. Includes published research, project descriptions, tools and benchmark circuits available to download.
http://www.cad.polito.it/

PLECS
Simulink add-on to perform piece-wise linear electric circuit simulation. Developed for power electronic circuits and will assist with any combination simulation of electrical circuits or controls. Includes tutorial, netlist and library components.
http://www.plexim.com/

SPICE 3 User's Manual
SPICE 3 User's Manual converted to html format with search facility and cross-references added.
http://newton.ex.ac.uk/teaching/CDHW/Electronics2/userguide/