Electronics Forum | Tue Sep 11 19:54:52 EDT 2001 | gsparka
HELLO. SMTNETERS there is no company in high mix low volume system in our contry so . what is the best way to calculate the capa. of smt line in high mix low volume. & what is the general way to get the defect rate to evaluate the smt line(or sm
Electronics Forum | Sat Aug 15 06:59:01 EDT 2020 | toki
Hello everyone, hope everyone is doing well. I would like to know what should i look for while purchasing an X-Ray machine for SMT production line. I am looking for offline x-ray machine and budget below 90k usd. It will be used to inspect BGA, QFN a
Electronics Forum | Mon Jun 06 11:11:44 EDT 2011 | frcdave
Melanie, Given the examples of the solder joints in this and surrounding components, I would believe that there is no solder present.
Electronics Forum | Wed Jun 01 10:33:18 EDT 2011 | tzhangaclara
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 s
Electronics Forum | Fri Oct 22 16:05:34 EDT 2021 | Katie Marzocchi
VJ Electronix has some great counters and the pricing is competitive. There's great info and datasheets here. https://www.vjelectronix.com/smt-inventory-management-with-x-ray-component-counting/
Electronics Forum | Wed Jun 01 15:57:18 EDT 2011 | markhoch
Hi Melanie, Can you provide pictures of the solder connection itself? I've found that xrays can sometimes be misleading.
Electronics Forum | Tue Jun 07 00:10:13 EDT 2011 | Jacki
Hi Melanie The centre pin got solder but not fully as other 2 leads. U better provide the x'sistor from the top view.
Electronics Forum | Tue Oct 17 18:10:05 EDT 2000 | Philip A. Reyes
Yes, you need to conduct X-ray inspection for BGA-SMT assembly, but it doesn't mean 100%. If your process is well capable and robust you can do sampling. There is an available X-ray machine that right now Iam assessing, cause we are going to buy one.
Electronics Forum | Wed Apr 30 09:13:30 EDT 2003 | pjc
Yes, there is a limitation with Transmission X-ray on double-side SMT boards, ie.: back-to-back solder joints, components on bttom side over a solder joint.
Electronics Forum | Thu Jun 02 13:32:05 EDT 2011 | davef
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 connect
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