on 10. Feb 2010 at 13:11:
Marks DTM Calib wrote on 09. Feb 2010 at 12:45:
The problem is that the bond wire is steel.....hence soldering is very difficult and the pad onto which it must go is very small
Curious choice of material - but I guess Bosch had their reasons! I presume the wire can't be replaced with copper? (But that might upset the electronics if it's resistance is critical - although what's few pico ohms here or there between friends!! Plus it might increase the risk of heat damage to surrounding components.)
Or have you tried a corrosive flux like Bakers Fluid?
Steel is pretty much the standrad practive for bond wires and is resitance welded onto the pads
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