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???
05/03/06 22:34
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#115507 - Advanced Circuits won't
Responding to: ???'s previous message
One of the things the Advanced Circuits <www.4pcb.com> guys won't do, is "step and repeat" circuits on the same panel, as part of their prototype program.

It's on the purchaser to determine whether any given house can produce what he wants. My experience has been that, here in the U.S, "budget" prototype houses won't even attempt meeting my spec's.

Asian vendors seem to have no trouble with requirements like mask, silkscreen, 4-mil tracks, 5-mil vias in thin outer layers, and <1-mil tolerances on registration of mask to pads. I find the mask tolerance the most critical item with high-density parts.

RE



List of 26 messages in thread
TopicAuthorDate
PCB Prototypes            01/01/70 00:00      
   You might...            01/01/70 00:00      
      skip the 'no mask' offers            01/01/70 00:00      
         I have to agree            01/01/70 00:00      
            Richards concerns ...            01/01/70 00:00      
         ditto on the mask            01/01/70 00:00      
            Problem is tolerance on the mask            01/01/70 00:00      
               no match of experience            01/01/70 00:00      
            Problem is tolerance on the mask            01/01/70 00:00      
               Shaky hands? :)            01/01/70 00:00      
                  do you suppose that's it?            01/01/70 00:00      
                     Are you double clicking?            01/01/70 00:00      
                     Are you double clicking?            01/01/70 00:00      
                        Looks like that maybe it.            01/01/70 00:00      
                           I'm pretty careful ...            01/01/70 00:00      
                              OI !            01/01/70 00:00      
   batchpcb.com            01/01/70 00:00      
      Multiple Copies            01/01/70 00:00      
         Advanced Circuits won't            01/01/70 00:00      
   Help me in led matrix            01/01/70 00:00      
      I have it            01/01/70 00:00      
         No ... not a graduation project ...            01/01/70 00:00      
            maybe, but try to get it right            01/01/70 00:00      
               It was an Intel App-Note            01/01/70 00:00      
                  but not his real problem            01/01/70 00:00      
                     You're right about that, for sure!            01/01/70 00:00      

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