Hi Zhengqiang



I would suggest you to make analysis whether it is solder or other metal or

even other thing.  You can use EDX to analyze whether it contains metallic

component.



In some case, it is just the fibre from board or other source (e.g rosin)



Jackson Chan

Technical Services Manager

Cookson electronics - Alpha Metals





                                                                           

             "Lu Zhengqiang                                                

             (RBAC/MOE2.4-AE)"                                             

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              "Lu Zhengqiang                                               

             (RBAC/MOE2.4-AE)"                                             

             <Zhengqiang.Lu@CN                                             

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Hello, Everyone,

            Here we meet a solder bridge after reflow, see attached

picture, but the bridge is very strange, only a filament, do you ever meet

this kind of bridge? How it could happen?



(Embedded image moved to file: pic02470.jpg)





Thanks & Best Regards

_______________________

BeQIK

Zhengqiang Lu (Mr.)

RBAC/MOE2.4-AE



Tel.      +86(512)6767 5768

Fax.     +86(512)6256 5236

100 Years

Bosch in China | 1909-2009

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