Electronics Forum | Wed Mar 24 01:22:38 EDT 2010 | itzikbs
These boards had solder mask issues, where manufecter took the boards and said he will rework them. All boards has the same problems as in the picture attached. We rejected the boards, but still I appriciate an explanation what can go wrong if I us
Electronics Forum | Fri Mar 26 03:24:01 EDT 2010 | ravikumarasahitec
Hi, yes we used to see this kind of problem our customer end. This due to stencil aperture opening.these kind of issues we will overcome thorough our stencil process. please contact. ravikumar@asahitec.in
Electronics Forum | Thu May 13 01:27:01 EDT 2010 | cobar
The problems that could be introduced by attempting to transfer paste into alternate containers far outweighs the penalty of wastage of paste.My grandmother doesnt receive a rebate from the filling stations because she only travels 50 miles a month w
Electronics Forum | Fri May 21 07:44:28 EDT 2010 | mun4o
hi, I have similar problem 2 year ago.BGA256 , hole in pad technology.I order PCB manifacturer to fill hole with solder mask.And now everything is ok. regards
Electronics Forum | Fri Aug 20 06:32:44 EDT 2010 | aj
Hi, I would recommend you trial an alternative supplier if you have the option. I did a lot of trials on the issue and dont have any problems. Contact me off line and I will share details aj...
Electronics Forum | Fri Aug 20 10:07:09 EDT 2010 | dan_ems
Hello, I have the same problem ..., please take a print screen with the profile to see how is made it. Thank !
Electronics Forum | Wed Sep 01 07:44:36 EDT 2010 | sachu_70
Dear SMT-manufacturer, I would recommend to also have other device joints on board X-ray inspected to understand if void formations are seen across the board or confined only to one component. If seen across, your "Reflow Profile" could be the cause
Electronics Forum | Thu Feb 17 18:13:31 EST 2011 | SheanDalton
Humidity, Juliano? Try drying the boards pre solder; oven or dry storage cabinet. If this works, Eureka has good desiccant dry storage cabinets, http://www.atekllc.com. Shean Dalton www.fhpreps.com
Electronics Forum | Sat Feb 19 10:07:51 EST 2011 | kahrpr
What kind of voids? There are voids from out gassing (moisture) and voids from contamination and or poor solder ability ? If it is on one component I would look at the part. Also if it a big Varistor make sure the board is preheated properly.
Electronics Forum | Fri Apr 15 18:41:35 EDT 2011 | swarnergictg
We had a similar problem with contaminated leads that was rectified by having a company strip the existing finish and re-tin the leads. After the procedure the leads accepted solder with no issues.
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