Electronics Forum | Fri Nov 09 16:58:30 EST 2001 | davef
Go for it!!! You were unspecific, but adding mask to a completed board could cause: * Increased paste thickness, if you have double thickness of solder mask. * Wrinkled and lifted solder mask under the component, if the solderability protection of
Electronics Forum | Tue Oct 09 11:17:56 EDT 2012 | 18424
Hello All, I have PCB's in a 30 up panel that have signs of improper solder mask adhesion. Per IPC 6012 they specify a maximum of 5 Percent allowed to have problems adhering to base laminate per class 2. I am trying to figure out if this 5% is for th
Electronics Forum | Tue Jul 05 18:24:50 EDT 2016 | padawanlinuxero
Hi have you try to use some type of adhesive like loctite or a solder mask to avoid lifted components, we use both in 2 different products, we use loctite to avoid a hall inserted in a plastic carrier, lift when being solder in the solder wave, the s
Electronics Forum | Thu Dec 13 20:54:23 EST 2001 | davef
There is neither �nominal thickness� nor �is there a set maximum� for via masking. We use some of our vias as test pads. So, as you�d expect, we get rabid when we get mask bleed onto these pads. IPC-6012 - Qualification & Performance For Rigid Pri
Electronics Forum | Wed Nov 14 20:28:24 EST 2001 | davef
Not to worry. Just run the boards through the cleaner. It will remove all the solder balls. The gross filter on your washer will collect all the solder balls. Coo eh? ;-) How to cure SM? Is your mask UV, er thermal? After learning the type, you
Electronics Forum | Mon Jul 18 12:24:53 EDT 2016 | oleksz
Some people involved in PCB assembly process claim that SMD components reflow soldering problems are often caused by traces running under a component. According to this claim, trace (or any copper) covered by solder mask and placed under SMD componen
Electronics Forum | Mon Jul 18 12:25:30 EDT 2016 | oleksz
Some people involved in PCB assembly process claim that SMD components reflow soldering problems are often caused by traces running under a component. According to this claim, trace (or any copper) covered by solder mask and placed under SMD componen
Electronics Forum | Sat Jul 22 03:27:36 EDT 2023 | shrikant_borkar
hi here are consolidated inputs to you you must validate before establishing your process. ESD-safe Material: Ensure that the masking tape is made of ESD-safe materials that have low triboelectric charge generation. Common materials used in ESD-sa
Electronics Forum | Thu Aug 16 09:42:15 EDT 2007 | russ
This could be the reason for the mask defined pad. ERROR in docs! This happens a lot. I believe this to be case honestly, I would not use mask defined pads for these. If you get a registration shift in mask which is likely you will run into troub
Electronics Forum | Tue Feb 19 14:00:55 EST 2002 | global
We have had some discussions about what causes parts to lift out of the holes when going over the wave on our flow solder machine. The machine being used is a Treiber (700 series). There are two bottom pre-heaters and one top pre-heater. We try to pr
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