Electronics Forum | Fri Apr 04 18:16:43 EDT 2014 | garym4569
We are in the process of launching a new product and found reflow solder issue with one of the inductors. I have set oven profile to paste specifications. I just finished profiling with thermocouple under problem component. All other components ex
Electronics Forum | Fri Apr 18 14:25:51 EDT 2014 | horchak
what is the technology? Is there fine pitch, double sided, number of layers, lead free? If the pcbs are not of the highest quality you may be set up for failure with no clean process. Couple things to look at is your paste flux content versus medal
Electronics Forum | Tue Apr 22 12:33:35 EDT 2014 | barryg
No we have a battery spring that is soldered directly to a PCB (standard tin plated copper PCB). The Battery spring supplier (and I have no confirmation he makes them or buys them) claims they are tin plated. When trying to solder to them it is very
Electronics Forum | Mon May 12 12:58:07 EDT 2014 | emeto
Hello all, I have a diode(gold plated)on some assemblies that gives me a a hard time. The paste is wetting too good and climbs the lead of the component and touches the body which is a defect. I just wonder what if there is a way to heat the board e
Electronics Forum | Thu Jul 17 20:20:21 EDT 2014 | mac5
Hi June, The biggest issue with an OSP finish is as soon as the PCB sees a heat cycle (reflow or wave) the finish will begin to degrade. If you have a single sided SMT assembly with THT components installed downstream it works pretty good. But a dou
Electronics Forum | Mon Oct 20 21:26:57 EDT 2014 | richardciccarone
I have seen a couple of references to Black Tar, Not Black Pad. Apparently, it occurs only on the solder side of PTH's after wave solder and primarily on the edges of the land. It is characterized by a black coloration (Not Ni corrosion?) and non-wet
Electronics Forum | Fri Nov 14 10:45:22 EST 2014 | tombstonesmt
We use both types in house. We started with a board moving over the pot, slowly moved on to Jade machines and eventually Synchrodex. Like you mentioned without palletizing you'll have component movements during the cylce and most likely won't have th
Electronics Forum | Tue Dec 08 15:19:42 EST 2015 | proceng1
Apply the correct amount of paste for the pad size should work ok, as long as the part starts out in the paste. If you have a reduced aperture and the leg doesn't quite touch any paste could result in non-wetting or insufficient solder issues. I gu
Electronics Forum | Sun Dec 20 11:58:44 EST 2015 | ttheis
Hi Deni, Thanks for the input. That is my concern as well. Before getting to far I will try some repeatability runs and see if it is feasible. What is your experience with semi-auto printers and the primary issues you contend with? I'd like to ste
Electronics Forum | Sat Jan 09 13:05:25 EST 2016 | aemery
Wow! a 500, That's a Battleship there, old and may leak a lot but gets the job done. Mike Schwager is a great guy and knows his stuff. If he doesn't have the time or resources I would be happy to be his backup if you're in a pinch. I generally onl
