Electronics Forum / CAD / January 2005

Can I run a simulation and view the schematic to see what's going on
i.e., current flow, voltages, etc. in different parts of the circuit.
Much the same way MicroCap allows you to view the schematic  when
running a simulation.

I've got a short run (20 pieces) of a board with surface-mount parts
that needs assembling. Got the parts, got the boards, got the stencil .
. . I'd like to hear of assembly houses that do work like that (USA).

I was reading a paper on "LOW-POWER DIGIT-SERIAL MULTIPLIER"
And I came accross a problem of how they measured the power dissipated
in the Multiplier which they have designed.
It said on a paper that,they are using HEAT:Hierarchical Energy

Does anyone know which CAD programs were the first to offer panning and
zooming?  This may even be entering in different coordinates for a
different view.  It does not have to be "smooth panning."
I found a great article on it here:

Upto now, I've managed to get away with using IPC standards to guide me.
However, I've decided to dip into my wallet and pay for the standards that I
consider necessary as a "professional" designer. Eg. IPC-2221PCB Design
general, IPC-SM-782A Design and land pattern, PCB libraries ...

POLY() sources constructions does not work from within ng-spice even
spice3f5.
Any method to fix it ?
Thanks, Habib

I have been reading papers lately on the early history of computer
panning/zooming around the 3D models.  I'm really interested in the
period before 1985.
The papers I have been reading store the data in a matrix then use an

Hi All, I'm learning PCAD 2000 and I can place tracks, vias, components.
But how do I print my PCB?
When I go to print preview, all I get is a white page.
thanks

I have downloaded SuperSpice and I don't anderstand how it's works.
1) In the example called "impedance.sss" there is 2 curves in the graph,
where are define theses curves ?
How to remove one curve ?

what is meant by EIAD tantalum capacitors?
i tried to find on the internet, but in vain.
can anyone give me account of this? they are used in spartan3
evaluation board from xilinx alongside the voltage regulator LT1585T.

Are there any EDA tools (schematics drawing program, PCB drawing,
circuit simulator) program that works on OS/2?
[]s

Hello, all.  Does anyone have a recommendation(s) for a drawing package
specifically for LAN (local area network) diagrams?  I've been using
Paraben's LAN Charter but was wondering what else might be available.
I've also used MS PowerPoint but got tired of constructing my own ...

I need some help to draw a copper pour area with Orcad 9.2.
Using fast fill copper pour , the area is filled very fast but I can't
extract Gerber Files correctly.
Using normal fill, it takes a lot of time for fill the area, also each time

Once upon a time Barco Gerber Systems Corporation were the publishers of
the official RS-274X standard. The Barco web site no longer has any link or
reference to the standard. Fortunately there still are copies of the
specification floating around on the web. Does anyone know who ...

Why are you so keen to get your hands on the source and rights to the
IVEX product?  Are you maybe looking to try and market it yourself...?
Prescott