Electronics Forum | Thu Dec 12 17:39:14 EST 2019 | davef
When I hear "pinholes" in solder connections, I think of two sources, depending on the situation, which can be either: + Entrapped air and process chemicals develop during reflow soldering to cause the pinholes in and around the intermetallic layer
Electronics Forum | Fri Dec 27 14:27:40 EST 2019 | slthomas
We switched to a REL0 T3 paste, Amtech LF-4300. It wets the castellations more consistently. I believe that in our case it was more of a plating wetting issue with the parts, but yours sounds more like a pcb finish or thermal issue. That larger pad
Electronics Forum | Wed Apr 08 12:19:18 EDT 2020 | richardcargill
I'd have thought that centre search uses an algorithm to find the dead centre of a specified geometric shape. Pattern recognition basically has a picture of the area of the board selected and tries to match it with what the camera sees. ( so it doesn
Electronics Forum | Mon Jun 29 15:52:00 EDT 2020 | jmelson
One last question, can the FLX2011 pick up a negative fiducial, ie. a plated through hole? Some of my boards do not have traditional fiducials, so I pick up the location of a couple mointing holes. (It didn't address this in the documents.) Thanks
Electronics Forum | Tue Jan 19 19:41:09 EST 2021 | rgduval
Double check your p/n and your datasheet, and with your supplier. I had this happen one time, though it wasn't with flexi-term parts. Mine ended up being palladium plated end-caps (my buyer and receivers had all missed the applicable suffix issue o
Electronics Forum | Mon Jan 25 13:39:51 EST 2021 | grahamcooper22
Thanks for your reply. According to the manufacturer there isn't any palladium under the solderable coating on the chips...just nickel....i guess maybe the nickel is heavily oxidised. I have experienced the poor solubility (zero solubility at 210 deg
Electronics Forum | Mon Apr 25 13:58:16 EDT 2022 | kojotssss
Route differences you should read in user manuals from Fuji. As i know W08f types feederes comes from factory with magnetic Sub plate, for f type is it Standard equipment!
Electronics Forum | Fri Aug 12 05:24:35 EDT 2022 | ttheis
We recently parted out a GSM machine that we could not get operational. As parts came off of the machine it looked like the frame would make the world's strongest welding/work table. We stripped the frame bare and flipped it over instead of scrapping
Electronics Forum | Thu Mar 02 20:33:31 EST 2023 | oxygensmd
There is a worning parts inside the coupler, if worn the coupler miss the accuracy. Second one is the offset mechnic which also can miss the accuracy. Offset mechanic is under the plate (next the operator door). Check it by hand to be stable and be m
Electronics Forum | Mon Feb 26 20:05:09 EST 2024 | alexv
Leaded solder is liquidus at 183C, 220C is max. Sounds to me your boards might be contaminated or the plating is poor and allows oxidation. Without seeing the boards or profile, I recommend you slow down your oven for a longer soak, to allow the acti
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