Electronics Forum | Wed Nov 20 09:23:58 EST 2002 | Adam
Is it possible to achieve a 100% top-side solder fillet where pin 1 on the device is attached to a ground plane ? we've optimised the wavesoldering and fluxing operations, but without much success on that pin, every other pin is fine. Any advice woul
Electronics Forum | Fri Apr 23 12:47:29 EDT 2004 | barry
I have increased my peak to 220, and Flow is better, but it still not quite a good fillet all around. The solder tends to kinda "bunchup" at the toe of the lead. If part is Pb free, would this affect adhesion and or flow?
Electronics Forum | Wed Sep 15 07:43:11 EDT 2004 | gregoryyork
It may be worth baking the boards for an hour at 120C and then trying it straight away do not leave them lying around.Is the fillet shallow and inverted back into the board. Do you have any blow holes as well? Cheers Greg BLT
Electronics Forum | Tue Nov 09 15:09:50 EST 2004 | Dreamsniper
IPC Class 1, 2 & 3 do not require side fillets. I think this statement is correct. But they define what is acceptable end joint widt and side over hang. regards,
Electronics Forum | Sun Apr 03 00:22:50 EST 2005 | Haran
We have received a board from our customer with one of the Transformer falling off.The component lead plating fell off but there is solder fillet at the PCB pad is good.
Electronics Forum | Wed Jul 06 12:25:55 EDT 2005 | HOSS
Bob, We have seen this same issue and haven't found a solution other than touching up to create a toe fillet. Luckily, it's a low volume product, for now. What have you done to combat this? Thanks.
Electronics Forum | Tue Feb 28 07:47:33 EST 2006 | davef
The key driver to aperture design is to assure a fillet of the proper height for the component temination and the reliability of the end-product customer use environment.
Electronics Forum | Wed Mar 08 17:51:27 EST 2006 | pms
Chunks nailed it. You should not expect to see a perfect side fillet on this part, especially using no-clean, it's probably bare copper, hard to wick solder up the side of the lead.
Electronics Forum | Fri Mar 10 07:47:09 EST 2006 | aj
Guys, Just to let you know, I followed the recommendations from the supplier and we have very nice solder fillets now. Thanks for all your help.
Electronics Forum | Wed Mar 22 12:28:33 EST 2006 | Rob
Leave us alone, olive oil isn't the same as crude! Defect of the month is... hot tear. http://www.smartgroup.org/pdf/Defect01.pdf
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