In a message dated 6/5/2003 9:07:39 AM Eastern Daylight Time, 
[EMAIL PROTECTED] writes:


> What methods of labelling would you recommend for unique identification of
> PCBs. We have been using thermal printed labels for serial numbers etc, but
> these are destroyed if a board is reworked. The boards have an area for hand
> writing serial numbers, but this is removed when solvent cleaning!
> 
> I need a simple method of labelling individual boards, that'll withstand
> high temperatures and solvents! Any ideas?
> 

How about an area of bare copper (soldermask opening) in which you can scribe 
the serial number?

Steve Hendrix


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