Hi, Guenter, Werner...
     An opinion within the group of "leading lights" of UK technology,
     claim that "the lead free legislation is good timing" as Sn/Pb alloys
     do not have the reliability of other alloys, particularly with regard
     to modern components such as CSPs and Micro BGA.

     I have always understood that Pb makes Sn/Pb alloys very plastic and
     thus extreemly reliable under the stresses of thermal cycling.

     If there are more reliable alloys, what might they be?
     Which alloys present us with a higher degree of plasticity?

     Regards
     Edward Brunker
     PSION Computers

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