FYI,
Take a look at the April 2002 issue of Printed Circuit Design Magazine
It's focus this month is on
Panelization as a means to High-Volume Manufacturing...
Sam Cox.
At 01:36 PM 4/12/2002 -0300, you wrote:
>Thanks to all who helped with this thread. I'm reviewing them and haven't
Jason,
You indicate the "Profile is Optimum" according to Fab. Which I conclude to
be, that the layer stack up order is balanced around the
center line of the board stack up.. As well , you indicated or
implied the copper is equally distributed on each signal pair and internal
plane pairs o
Protel DXP
Looked better than I expected.. It does not require you to save as a DBase
Project.. It has fading floating docable tool bars.
it allows VHDL schematic capture.. I was talking to Rick Wilson a great
teacher and sale person.. He got me jazzed about it.
Sam Cox.
Did anyone go to
Hello everyone..
We have pretty much beaten to death the definition of PWA, PWB, PCA, PCB.
Now that we know what we are talking or not talking about.. The question I
have is
What are the top Ten or twenty(now a days) DFM "Best Practices" process
steps, or checks or suggestions you might
I believe it is more like hanging " Chads"...
That brings back bad memories.. too..
At 11:35 AM 2/1/2002 -0500, you wrote:
>Is that like a dangling participle?
>Sean James
>PCB Designer
>Telecast Fiber Systems, Inc.
>102 Grove Street
>Worcester, MA 01605
>(TEL) 508.754.4858 x33
>(FAX) 413.541.6
Sean,
Counter Sink holes are used often for mounting holes for BGA devices..
especially in
performance boards.. (DUT) Device Under Test boards where they are
mounting a socket that will accept a number
of component loads for each chip test.. If you send me your fax number I
have a
detail draw
Hello,,,
Mid is the "geometric center of the spans of all of the pins in a
component.. (not the body outline.)
Ref is the origin of the component when the component was created in the
library..
Pad is Pad1 of the component...
Most of the time the component is and I believe should be built wi
Steve...
1.) the question should be rephrased to "Symbol Rotation".. not "Component
Rotation"..
2.) Why would you want to rotate a symbol in Schematic capture to something
other than
90 degrees.? This not standard practice. Also, keep in mind that your pins
of the symbol need
to end up on a sc
Right On
Well put
At 12:21 PM 10/23/01 -0700, you wrote:
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Hello,
Just another 1.5 cents...
Let's hope that some of the guys from M
Maybe you can not get it to work right
because you can not spell it right.
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Tim,
below are some very valuable resouces,
http://www.robertsondne.com/
http://www.ultracad.com/articles.htm
http://www.merix.com/resourcecntr/res_intro.html
UltraCad as well as Chris Robertson's site have impedance Calculators.
Merix has a great DFM manual..
Enjoy
Sam Cox
*
Tim,
Take a look athttp://www.merix.com/resourcecntr/apps/balanced_pcbs.htmlit is an article on
Balanced board stackup... it will explain it best...
Sam Cox...
>
>> -Original Message-
>> From: Tim Hutcheson [mailto:[EMAIL PROTECTED]]
>> Sent: Wednesday, August 22, 2001 10:53
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