It might not be possible to build the board to Class 3 standards. It might
not cost any more. You should develop your processe to satisfy the market in
which your organization seeks to participate.

If you are participating in the segment of the market that demands Class 3
products then you would, barring any serious DFM problems, be able to
produce a Class 1 or Class 3 board for about the same price.

If you are participating in the segment of the market that demands Class 1
products then you might not have the equipment, skills, or process controls
necessary to deliver Class 3 products. But my guess is that you would be
able to deliver Class 1 products at a lower cost than a Class 3 house.

PROCESS, PROCESS, PROCESS

my 2 cents.

 Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext 107



-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Tenison Stone
Sent: Thursday, October 12, 2000 8:35 AM
To: [log in to unmask]
Subject: [TN] cost difference class 3 vs. class 1 revised


Let me revise this request.

I would like to direct the question below to companies that build both
class 1 and class 2 assemblies.

What is the difference in your process for class 1 and class 3, and what is
the difference in quoting for class 1 and class 3?

What is the typical cost difference if I build class 1 product and want to
change to class 3?

For instance, my class 1 board cost $10.00 to build, what would be the cost
to build this board to class 3?

A little bit of background, we are building assemblies for a sister plant.
We build smt parts only (no TH) and we do not test the boards.  I cannot
imagine a contract house that would accept these constraints, let alone
agree to class 3 requirements.  What are your feelings?  We are trying to
improve our processes working within the constraints given.



Thank you for your help.

Tenison Stone
Telex Communications

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