Electronics Forum: how to prevent solder leach (Page 1 of 3)

How to prevent Bluetooth Module BGA short anybody?

Electronics Forum | Mon Nov 21 09:23:06 EST 2005 | Amol

With a BGA, how much solder paste are you putting on the pads? sometimes, bridging occurs when there is more solder paste than needed during reflow.....just a thought

How to prevent Bluetooth Module BGA short anybody?

Electronics Forum | Tue Dec 06 06:14:38 EST 2005 | bwet

Try using some of those new polyimide stencils. They are 8mils thick and can prevent shorting if it is due to solder mask problems or too much paste. http://www.solder.net/technical/tips.asp BWET

How to prevent COB pad free from contamination

Electronics Forum | Thu Mar 20 08:45:02 EDT 2008 | davef

Common methods use to protect pads from solder splatter are: * No residue Kapton tape * Nonionic solder mask

How to prevent Bluetooth Module BGA short anybody?

Electronics Forum | Wed Nov 23 07:39:14 EST 2005 | chunks

Shorted to the sheild or the BGA balls are shorted? Sheilds move a lot during reflow. If this is the case, place some adhesive or peelable solder mask on either side of the shield and baords to stop it from moving.

How to prevent COB pad free from contamination

Electronics Forum | Mon Mar 17 07:00:34 EDT 2008 | ectan5117

Hi, During SMT process, i found that solder splash on the gold pad. The distance between the COB pad with component pad is about 1.25mm. My question is what material can used to cover the COB pad without bringing contamination. And i am welcome to

How to prevent Bluetooth Module BGA short anybody?

Electronics Forum | Fri Nov 25 09:31:56 EST 2005 | davef

pyramus, First, search the fine SMTnet Archives for previous discussions on BGA shorts. Second, we're still not clear on the issue. * Is the problem with a BGA? If so, please describe the BGA, including any heat spreader * Is the problem with a uB

How to prevent Bluetooth Module BGA short anybody?

Electronics Forum | Tue Nov 22 10:12:13 EST 2005 | stepheniii

Have you complained yet to MuRata? You are talking about the same bluetooth module, aren't you. I hope everybody having trouble with module complains to them. I don't believe they put all the cautions and warnings about reducing the deltaT on the da

How to prevent BGA issue of SMT solder resist when fabricate PCBA

Electronics Forum | Wed Jun 14 12:49:12 EDT 2023 | spoiltforchoice

#talkingwithrobots

How to prevent BGA issue of SMT solder resist when fabricate PCBA

Electronics Forum | Thu Jun 15 00:43:58 EDT 2023 | frankchan

Hahaha, that's straight to the point

How to prevent BGA issue of SMT solder resist when fabricate PCBA

Electronics Forum | Wed Jun 14 11:26:03 EDT 2023 | stephendo

Use a PCB manufacturer that is at least 30 years old.

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