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???
10/19/05 02:12
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 		 #102595 - Aging
Responding to: ???'s previous message
Oliver Sedlacek said:
I wouldn't worry about aircraft as the boards will be stress screened.

BTW I agree, lead free is a pain in the backside.



As Erik usually says, testing does not prove the absence of bugs, just the absence of known bugs. As Kai and others have noted, the trouble with the new high tin solders are things like dendritic whisker growth and thermal cycling effects, which are unpredictable.

Steve

List of 38 messages in thread
TopicAuthorDate
Lead free solder a pain in the bum?            01/01/70 00:00      
   Mixing            01/01/70 00:00      
      visual clues            01/01/70 00:00      
         visual inspection            01/01/70 00:00      
            Then why Lead Free?            01/01/70 00:00      
               better with 63/ 37            01/01/70 00:00      
                  hmmm            01/01/70 00:00      
                  63/37 Solder.            01/01/70 00:00      
                     State change            01/01/70 00:00      
               regulation            01/01/70 00:00      
                  RoHS            01/01/70 00:00      
      Lead-free + Leaded            01/01/70 00:00      
         more info            01/01/70 00:00      
   It's a disaster to forbid lead in solder            01/01/70 00:00      
      Interesting statistic            01/01/70 00:00      
         Lead in batteries, lead in electronics.            01/01/70 00:00      
            SIlicone            01/01/70 00:00      
      Exemptions            01/01/70 00:00      
         Aging            01/01/70 00:00      
            worse            01/01/70 00:00      
               where is the difference            01/01/70 00:00      
                  no difference.            01/01/70 00:00      
   thanks to the engineerinmg profession, a            01/01/70 00:00      
      But...            01/01/70 00:00      
         lead-free solder            01/01/70 00:00      
            carts and horses            01/01/70 00:00      
               Of course, but...            01/01/70 00:00      
         another time bomb            01/01/70 00:00      
            badly soldered?            01/01/70 00:00      
               tin disease            01/01/70 00:00      
   An additional, overlooked problem            01/01/70 00:00      
      Law of Preservation of Filth            01/01/70 00:00      
         PErhaps            01/01/70 00:00      
            Myth            01/01/70 00:00      
               "man does not pollute, men do"            01/01/70 00:00      
                  Oh yea ?            01/01/70 00:00      
                     polution            01/01/70 00:00      
            Far more serious issue here            01/01/70 00:00      

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