Electronics Forum: order pcb with solder paset (Page 1 of 1)

Re: Problems with wave solder

Electronics Forum | Thu Nov 19 09:55:47 EST 1998 | Dave F

| | | | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the w

Solder beading with PCB from different fab

Electronics Forum | Fri Apr 08 20:37:09 EDT 2011 | tkirk

Just wanted to say thank you to everyone for your help. We will do a long bake for all future PCBs ordered from this vendor. TK

Barrel fill with Pb Free Wave Solder

Electronics Forum | Thu Dec 11 07:29:58 EST 2008 | jdumont

I have done a few studies on this issue here. As a result we have increased hole diameter on heavily ground planed pins to a min of .015" over the lead diameter as well as preheating the PCB when hand soldering. I have also had to order the upper pre

Solder beading with PCB from different fab

Electronics Forum | Thu Mar 31 20:16:31 EDT 2011 | tkirk

We recently decided to try using a different source for our bare boards to save money. On two different batches of PCBs now from the new source, we are seeing beading including some serious enough to short out underneath 0805 parts. We have never re

PCB with ENIG plating shelf life?

Electronics Forum | Tue Nov 15 22:33:16 EST 2022 | kumarb

Yes, solderbility. I recall one case of a vendor we met at a past HK electronic fair. Pricing was ok, we selected them and ordered a batch of boards. After a few months of leaving the PCBs in a sealed package (vacuum), we attempted to use the PCBs. W

Help with resources for SMT assembly

Electronics Forum | Sun Jul 26 05:56:28 EDT 2015 | spoiltforchoice

http://www.surfacemountprocess.com/solder-paste-printing-process.html this site has some pretty good general advice for the novice. I am in no way affiliated with it and I have no idea as to its eventual commerical aims (if any). ENIG if your produc

Interested in pin-in-paste process with standard ROHS connectors

Electronics Forum | Wed Jul 06 15:29:01 EDT 2022 | glasscake

Also I should mention, I've ditched the formulas for getting the "optimal" solder amount after being bit by them once. Now I just design a PCB with 4-10 spots for the connector then order a stencil with a range of aperture sizes. Figure out what give

Problem with less soldering material on the pins

Electronics Forum | Mon May 01 12:32:50 EDT 2017 | emeto

Looks like you have bad wetting. I will do in this order as it is easier to troubleshoot starting with the machine and transitioning to the PCB: 1. First clean some bare PCBs really good and try again. 2. Check thermal profile 3. Check flux - amount


order pcb with solder paset searches for Companies, Equipment, Machines, Suppliers & Information

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