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Electric is a sophisticated ECAD system that can handle IC layout, schematics, and even text-based design (i.e. VHDL). The system includes
many analysis and synthesis tools (DRC, routing, simulation, PLA generation, silicon compiler, network consistency checker, etc.) It interfaces to
many popular netlist and interchange formats (GDS, CIF, DXF, SPICE, Verilog, and many more). The source code compiles and runs on UNIX,
Macintosh, and Windows systems, and requires no additional software packages. Besides the user's manual, there is also a full textbook on CAD
tools available at the web site (http://www.electriceditor.com).
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pcb is a UNIX freeware program for generating printed circuit board layouts. It
has many features and is capable of professional-quality output. pcb was
orignally written
by Thomas Nau of University of Ulm, Germany, and is now maintained by harry
eaton of the Johns Hopkins University Applied Physics Laboratory, Laurel,
Maryland,
USA.
Features:
Multi-Layer: Up to 8 layers plus silkscreen
Parts Libraries:
TTL 74xx, connectors, crystals, linear series, voltage regulators,
resistors: discrete and arrayed, capacitors, transistors, PALs, LEDs, RAM
ICs, easy to generate user-defined parts. Output formats:PostScript, Color
for design checking, B/W for mask generation, Gerber (RS-274X). Output
layers:up to 8 routing layers, component mask, solder mask, silkscreen(s),
drill file(s), solder paste. Design Rule Checking (DRC), Complex
ground/power planes, Show electrical connectivity, Netlist comparison,
ground/power.
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