Electronics Forum | Wed Apr 13 21:47:32 EDT 2005 | Dhanish
In production,we are seeing high defect for Hair Line Solder Shorts for PTH connector and the Hair Line is too tiny that X-Ray and ICT could not detect.Any suggestion on how we can resolve or at least detect this upfront.
Electronics Forum | Fri Apr 15 09:10:09 EDT 2005 | Dhanish
The biggest problem I am having is the X-Ray and ICT could not detect this shorts.ICT could not detect because onboard measurement shows Zero even without the Hair line shorts.With Hairline there is no difference in the impedance value for ICT to fai
Electronics Forum | Thu Apr 14 09:21:52 EDT 2005 | pr
What kind of wave are you using? Is this an old job and a new problem? Sounds like dross shorting to me, Make sure the wave is flowing over the back plate (at least when the board hits it). good luck, pr
Electronics Forum | Thu Apr 14 11:03:51 EDT 2005 | patrickbruneel
All possible causes aside, how can a dead short pass your ICT unless the connector is not probed.
Electronics Forum | Thu Apr 14 18:51:19 EDT 2005 | KEN
What side is the short occuring on. Topside or bottom (solder) side? 2. Pitch of hole pattern = ? 3. Your x-ray may not have the resolution or DSP capable of detecting this defect. How does your profile look? Is this a true short or the result
Electronics Forum | Thu Apr 21 11:49:24 EDT 2005 | russ
Definitely would help when doing the search's. I always find a numerous amount of suggestions but you're right, you never know if anything worked! Russ
Electronics Forum | Thu Apr 21 12:39:10 EDT 2005 | patrickbruneel
Thanks Russ I must have caught you on a good day I'm not used to see you agree with me. Just kidding (couldn't resist)
Electronics Forum | Thu Apr 14 05:23:10 EDT 2005 | dj_jago
What is the pitch of the device and what type of flux are you using? You may eridicate the fault by using a more active flux. I assume you are flowsoldering the device as opposed to paste in hole. Do you have an air knife? If so, you could tr
Electronics Forum | Thu Apr 21 10:34:06 EDT 2005 | patrickbruneel
Hi Y'all It would be valuable to the users of this forum to get a response from the original poster about his/her findings and solutions. It usually starts with the post of a problem, then opinions and experiences get exchanged but we never see a co
Electronics Forum | Wed Apr 20 17:50:13 EDT 2005 | greg york
Try a rosin flux this has solved it for me on numerous occasions, no need to use heavy rosin only around 4% total solids so rosin around 1.5% is sufficient. It is down to the plasticizers which are tacky coming out of the resist. The rosin is an imme
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