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X-Ray pictures of SMT transistor

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#64396

X-Ray pictures of SMT transistor | 1 June, 2011

Hello,

Attached is the X-ray picture of a SMT transistor. Please give me your opinion whether this is a good solder or not. From my view, I did not see any solder in the middle pad. I feel it is a production problem. But someone told me unless you see the void under, it is a good solder. Please help.

Thanks.

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#64399

X-Ray pictures of SMT transistor | 1 June, 2011

Hi Melanie, Can you provide pictures of the solder connection itself? I've found that xrays can sometimes be misleading.

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#64408

X-Ray pictures of SMT transistor | 2 June, 2011

Melanie: We're with AVFOM. If you don't believe there is solder on the pads, use a beer can opener to pop the component off the board and you will have your answer. Easy-peasy.

Who ever told you 'if there is solder, there is voids' in solder connections is wrong. Stay away from him / her.

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#64420

X-Ray pictures of SMT transistor | 6 June, 2011

Melanie, Given the examples of the solder joints in this and surrounding components, I would believe that there is no solder present.

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#64422

X-Ray pictures of SMT transistor | 7 June, 2011

Hi Melanie

The centre pin got solder but not fully as other 2 leads. U better provide the x'sistor from the top view.

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PCB X-Ray Inspection System

pcb components X-ray inspection