Agreed.
I just spent the last eighteen months in a company making  substrates.
It was extremely noticeable that the people who actually made things
themselves had much less trouble than the people who were designing
for others to make. The number of times I have had to explain that
"just because your CAD system can draw it, it doesn't mean that we can
make it".
Some of the mistakes were embarrassingly elementary (e.g. circuit
bigger than the area through mistakes in multiple pitches), some  very
cleverly concealed, only to be found at final inspection. The hidden
cost and delays involved here must be very great when repeated up the
line at every supplier, although not necessarily appearing as a line
in a balance sheet.

Mike


----- Original Message -----
From: "Crepeau, Phil" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, April 24, 2001 7:30 PM
Subject: Re: [TN] More on outsourcing...


> hi,
>
> although i think the original question had to do with why a company
would want to outsource pwb fab and assembly from an outsource vendors
point of view, i'd like to make a few points about this process from
the point of view of the outsourcer.
>
> 1.  don't think you will save money, nor make the vendor happy, if
your design isn't mature.  it really causes problems when your vendor
is notified that a half built assembly needs to be taken off line.
> 2.  if the board or assembly you receive doesn't meet the drawing,
make sure you have people around that can rework or repair them.
chances are you aren't going to return them to the vendor to do this,
because it is time consuming and expensive.
> 3.  make sure you have people around that can incorporate design
changes that are made after the board comes in from the vendor,
because you probably won't find anybody else to do it.
>
> in other words, keep the capability to do prototype quantities of
assmblies.  farm the job out after everything is working to your
satisfaction.  your outsource vendor should probably  be involved at
this level so they can get their licks in.
>
> phil
>
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