Electronics Forum | Wed Aug 09 20:03:22 EDT 2017 | ttheis
We're having problems with Kester pastes (NP545 pb free and EP265 60/40 no clean pastes.) All of our other components reflow just fine with either paste, but for some reason this QFN chip doesn't wick to the QFN's pads well. It seems like some type
Electronics Forum | Wed Oct 04 00:47:57 EDT 2017 | silversurfer11
Hello, I am experiencing a high pitched noise coming from a computer component and I think it might be the 18 inductors they have placed on the PCB as part of the VRM. I am think of using a 2 part Thermal Conductive Adhesive and fix all the inducto
Electronics Forum | Wed Mar 28 11:59:32 EDT 2018 | robl
15000 hours is nothing we have Jukis and Assembleon/Yamaha's on 50K. What maters is how they are looked after. Ours are looked after very well. Also, what does the programming software cost? Regarding the Quad 4C, yes the support would be great,w
Electronics Forum | Sun Mar 25 08:45:00 EDT 2018 | jacobidiego
Normally some random components of size 0604 or below and may be due to a thermal mass being close like a transformer or AC electrolytic caps. We tried changing fan speed, but this will change the thermal profile and avoid the thermal mass from bein
Electronics Forum | Wed Apr 11 09:51:26 EDT 2018 | emeto
Diego, the first question you have to answer is "Is the paste volume too much in real?" How does your paste look? To check that, I would say you measure bare board with your SPI and see if your SMT pads show you zero, or may be not? If your value fo
Electronics Forum | Fri Jun 15 09:21:36 EDT 2018 | kahrpr
Full disclosure We use Samsung/Hanwha machines we like them so I am a little biased. There machine can place just about anything so that is not an issue. For there dual head machine the real number is closer to 40k but that depends on layout etc. all
Electronics Forum | Wed Nov 21 12:44:38 EST 2018 | reckless
Talked with the local Yamaha rep. YSM40 has a real world speed of 100k, in some cases 120k. Seems about in line with a Universal GC-120? It is a smaller chassis but the lightning head has more installations. I like the idea of such a small form f
Electronics Forum | Wed Feb 19 16:26:35 EST 2020 | stephendo
IPC tried to develop a standard to compare machine throughputs. The machine placement times are usually based on very few components with optimum feeder placement and a very large array of placements. Real life boards are rarely like that. Once I wor
Electronics Forum | Fri Mar 29 11:46:13 EDT 2019 | emeto
I have used the Chinese ovens that Manncorp is selling bought from another supplier and they can do the job. These will do the job. You can manufacture metal piece(plate) slightly tilted to collect the boards behind the oven(similar to wave soldering
Electronics Forum | Fri Oct 18 07:10:40 EDT 2019 | bk
The lock is manually being able to twist into the lock position and unlock by twisting in the opposite direction. I highly doubt that this is the real problem. First check the rings on the tool to see if they are too worn to hold in the mount head. S
