Cost goes up if there are controlled impedance traces.
Also more layers.

TDK

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
T.D.Kozlyk (TDK) C.E.T.
VP Membership
Silver Springs Toastmasters - Club #3987
[log in to unmask]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Larry Russell
Sent: Sunday, October 31, 2004 8:32 PM
To: [log in to unmask]
Subject: [TN] DFM Cost Factors

Hi   All ,

 What are some ways to DFM for high copper? Our customer has asked on 2-4 oz
designs, HDI.
Without the designs to show, some have plated filled over vias, laser
drilling, and blind and buried vias ( "viers"). The material is 175 Tg, so
lead free is not coming for free as well.

Suggestions?

TIA
Larry Russell

I'm trying to understand what causes PCB to increase in prices.  We have
narrowed down to few items.



1. Buried via

2. Blind via

3. 4oz copper compare to 3 oz copper

4. Laser drilling

5. Nelco material vs the Nanya Material

6. routing tolerance

7. hole size tolerance

8. thickness tolerance



Please let me know if  you  can tell us something about our designs that
makes it more expensive and how we can change it to make it less expensive.



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