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Extra Components found on the PCBs

Views: 998

CKH

#42849

Extra Components found on the PCBs | 20 July, 2006

Hi Folk,

recently we have found extra component (Stick onto the board) on the PCB. What is the cause of it...? Appreciate your help on this.

Thks & Rdgs CKH

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RDR

#42862

Extra Components found on the PCBs | 21 July, 2006

Well, normally this is from a misplace for some reason and the part is bouncing around the PCB, it should have been on some pads somewhere, Do you know if this assembly also had "missing" parts? Could be temp loss of vacuum during xy seek and part fell off nozzle. Or nozzle size too small for part and it falls off during a rotation or Seek.

Another reason is bad paste application or bad paste causing part not to stick when placed.

Judging by your other thread, it seems as though you are having a lot of pick problems with current equipment. feeders may be causing parts to picked up as billboard and then during placement getting "squirted out" due toi increased height.

Should be a start anyway

Russ

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CKH

#42865

Extra Components found on the PCBs | 21 July, 2006

Thanks for your great advice....

Rdgs CKH

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