The general rule of thumb is: if Double Sided is 100%, 4 layers will be 50%
     more, 6 layers 25% more, 8 layers 12.5%, etc.

     Example: if Double Sided PCB costs $1.00, 4 layers (same size) will cost
$1.50, 6 layers $1.875, 8 layers $2.08125, etc, etc.

     This rule can be applied to standard PCB's and gives you an idea of costs.


                                        Mauricio Castro
                                        Molex de Mexico


______________________________ Reply Separator _________________________________
Subject: [TN] No. of layers Vs Cost
Author:  "Gagrani; Kishore" <[log in to unmask]> at INTERNET
Date:    26/5/98 9:25 AM


I understand that more no. of layers would increase the cost of PCB,
but how is this function related ? Is there any formula (certainly
     will have many no. of variables) which can be applied to figure
this out ?

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