Werner

At $495, based on your contributions to this forum & my past experiences I
suspect it's a bargain!! 

 

Paul O' Connor

  _____  

From: [log in to unmask] [mailto:[log in to unmask]] 
Sent: 11 May 2009 20:23
To: [log in to unmask]; [log in to unmask]
Subject: Re: [TN] PCB baking

 

Hi Paul & Rob,
It is for these reasons I developed a White Paper "Recommendations for PCB
FAB Notes and Specifications in Printed Circuit Board Drawings for SnPb and
Lead-Free Soldering Assemblies, the Qualification of PCB Shops and
Activities to Assure Continued Quality."
Werner

 

 

-----Original Message-----
From: Paul O Connor <[log in to unmask]>
To: [log in to unmask]
Sent: Mon, 11 May 2009 2:55 pm
Subject: Re: [TN] PCB baking

Rob,






I'm afraid I can't give you a answer to your specific issue (I doubt there






is a simple answer/reason), but I've been witness to similar issues






regarding board reliability in the past - the company I worked for spent a






lot of time & money trying to resolve the issues; some were down to board






design but in the main it was found that price was dictating the PCB shops






we used & they simply were not capable of producing defect free boards






consistently. In the end we put in place PCB design guidelines & a  series






of PCB specification tests for bare boards that approved the PCB shop & the






material set. Cost for each qual was in the region of $5K. I hope this






response will be of some assistance & apologies if this response is low on






specifics regarding your query.













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