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Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.

uBGA rework and X-Ray inspection

Michael Parker


uBGA rework and X-Ray inspection | 13 April, 2000

Hello - I am currently evaluating uBGA rework and X-Ray inspection solutions. I would like any advice/warnings etc. regarding suppliers and equipment. I have already researched through the threads in this forum and have created a list of recommended equipment. I am starting with A.T.E. Sniper, Conceptronic Freedom 2000, Air Vac DRS24C, and SRT for the rework staions. Several of the suppliers also offer a x-ray system. Please share your experiences regarding effectivity of product, ease of use, training, service support, hidden costs (i.e. special tooling, etc.), mean time to rework a uBGA device and whatever else I haven't thought of to this point. Thank you in advance.

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Re: uBGA rework and X-Ray inspection | 16 April, 2000

Hi, I work for Nortel and here rework BGA'S we use DRS22 rework station and CRT 2000 X-ray inspection. The main problem is put again the BGA on the PCB because you need reboling the PCB and you could damage the soldermask. Talking about Air-vac is very difficult rework it if you have something on the PCB bottom (components, display, mailar, etc). X-ray inspection on CRT only you can see bridge and boits and we have problems with solder balls cracked and we can not see this defect on x-ray machine. I have some Lab analysis from these defects, that can send you.

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Re: uBGA rework and X-Ray inspection | 20 April, 2000

Hi.... I read your message and can empathize. I just joined PDR Infrared Systems. PDR offers an Infrared System for CSP/UBGA with X-Ray or Optical Inspection Packages. You may want to consider IR technology for UBGA before taking the plunge. Hope this helps !!

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