Electronics Forum / CAD / November 2007

  I am attempting to design my own 168 pin DIMM (with some minor
modifications). Is there a standard mechanical drawling for how 168
pin DIMMs should be (a location for each notch and hole) if so, who
would own that specification so I can make a module that is compatible

I have been using ORCAD, now forced to switch to an older version of Altium.
(Design Explorer 7.2.92)  circa 2002.
With ORCAD a Netlist is generated in Schematic Capture which is then used
by Layout to generate the PCB connections.

scad3, Linear Technology spice requires a component to be 'sprited' before
it can be rotated on a schematic. What in the world is 'sprited' and how do
I 'sprite' a component so that I can rotate it?
Thanks, AL

Canceling all work for November while I recuperate from hip surgery
was a mistake.
Going nuts with cabin fever, I have indexed all the files added to the
SED/Schematics Page of my website over the past few years.

PSpice get crazy to determine voltages when I have a series of capacitors:
<http://img213.imageshack.us/img213/1521/ex231yg7.gif>
After 'googled' a bit, I tried to fix the limitation of floating pin
(seems that PSpice can't determine DC voltage in such situations) by

I posted this in another group but I'm not getting any useful answers. When
this happens it is an indication that I'm trying to do the impossible or it
is really basic and I'm overlooking something. Since the PCB I'm editing has
a polygon with curved corners I'm pretty sure it is ...

We can supply parts and load PCB for you! Our company is located in
Melbourne and
the PCB will be loaded overseas. We are qualified supplier of PCB
Assembly of many multi-million companies in Australia. However, we

MENTOR.GRAPHICS.MODELSIM, other
CAD,CAM,CAE,EDA,GIS,PCB,FEA,FEM,CNC,CFD,PDS,3D,Optics etc.) designed
for any kind of operating systems(Windows 95/98/ME/2000/XP/VISTA,
Linux, FreeBSD, OS/2, MAC OS etc.)

I needed the spice netlists for the library cells in the TSMC 90nm
library. We had approached the cadence vendor for USF
but they said they only provide front end files, i.e., .lef
and .tlf(or

dear friends
i am glad to announce that there is a new shopping market opened
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http://golden-rm.zliog.com

so i am trying to use Eagle (latest freebie version 4.16r2)
to create a small schematic of  an old PCB.
( 4 ICs, 5 resistors, 12 buttons, couple diodes/ caps/ ribbon
connectors)

for first, if someone have used Orcad Layout too there is a significant
 improvement in upgrading to PCB editor ?
On PCB Editor:
- In Layout The spacing violation control (Design Rule Check)signal like

Since quite a while I see a hint here or there that someone wants to
compile a Windows version containing some of the gEDA modules. But
somehow that seems to always fizzle.
Is there a realistic chance we'll ever see a somewhat "official" Windows