Electronics Forum: 8472 (Page 1 of 1)

Via tenting/filling with BGAs

Electronics Forum | Tue Mar 22 08:05:59 EST 2005 | jdumont

Morning all, my question is regarding the use of filled/tented/plugged vias on the BGA site. What are you guys doing for this? What type of issues can this cause if using none, or the improper via design. Regards, JD

Via tenting/filling with BGAs

Electronics Forum | Wed Mar 23 22:28:10 EST 2005 | KEN

I ran into this yesterday. Seems some designer decided to not solder resist the via's on the solder side. Then the assembly went over the wave solder in a universal fixture. Not an ideal situation.

Re: cartridge filter for lead

Electronics Forum | Wed Nov 24 11:38:42 EST 1999 | John Thorup

Hi Wade As Steve says - are you sure that the lead is in solution? Particulate lead like solder balls is much easier to remove. The answers are going to depend on total output in gallons, maximum flow required and what has to be removed. If you're

Via tenting/filling with BGAs

Electronics Forum | Tue Mar 22 20:33:24 EST 2005 | davef

Q1. What are you guys doing for filled/tented/plugged vias on the BGA site? A2. 2221A, 4.5.1 tells you the vias have to be tented on both sides. Q2. What type of issues can this cause if using no filled/tented/plugged vias on the BGA site? A2. BGA

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