Electronics Forum | Mon Apr 20 23:56:47 EDT 2020 | SMTA-Samy
After I create the pick & place program on the pick and place machine (Assembléon, recently aquired by kulicke and soffa), we generate setup sheets for the operator which lists what component goes into what feeder. Upon loading a tape & reel in the f
Electronics Forum | Fri Jan 31 06:22:05 EST 2020 | tamasmagyar
Hi chapeshiel, I had at my former workplace 2 pcs Rehm oven with vacuum system, and did not work properly. Loads of hours of downtime with servicing because the conveyor system is separated in the vacuum area from the main conveyor system, and the t
Electronics Forum | Mon Feb 03 16:26:30 EST 2020 | stephendo
A few lifetimes ago I went to a seminar on reflow profiles. The speaker emphasized more than once that the cool down rate is important. Someone asked him about controlling the cool down rate and he acknowledged that you can't. And IIRC it was an ove
Electronics Forum | Tue Feb 04 09:21:48 EST 2020 | nhusa
There are two areas that are important when discussing cooling rate. One is the rate thru the liquidus, where a fast rate produces small grains in the metal and a slow rate results in larger grains. Although smaller grains are stronger normal SM
Electronics Forum | Mon Feb 10 10:41:29 EST 2020 | SMTA-Tony
Hello Phil, As the other respondents have mentioned, the cooling rate is not easily controlled and varies based on the oven and board design, as well as the settings of the last few zones and cooling zones. In general, the board is going to cool in
Electronics Forum | Thu Feb 06 20:23:35 EST 2020 | bilalfarooqi
Hey everyone, We use a MyData MY12 machine and we are experiencing a problem with the Midas head. I recently replaced a torn vacuum tube that goes on the zfib card. The machine worked perfectly for a day and a half but now MY12 has completely stoppe
Electronics Forum | Fri Feb 07 13:17:32 EST 2020 | bk
I am assuming you are initializing each motor individually through the service program. The z motor theta is hard to see so I put a mark on it with a colored marker so you can watch if the midas tool nozzle is actually turning or not. You should be a
Electronics Forum | Fri Feb 14 16:01:28 EST 2020 | bk
On the my12 the panel on the front of the machine comes off two screws each corner to loosen the panel. There is a pull out tray that gives you easier access to the computer, ps3, etc. It will be the box in the center on top it should label where eac
Electronics Forum | Sat Feb 08 04:37:19 EST 2020 | spoiltforchoice
I work with small batches and this is what I do. However I don't do it because of the paste. Instead I do it because I am the sole operator on the line and I want one process finished so I can keep a better eye on the others. I specifically work with
Electronics Forum | Tue Feb 11 10:51:20 EST 2020 | slthomas
To predict whether or not a first pass part is going to come off during the second pass you need to calculate the ratio of weight/soldered surface area. According to a couple of different sources that I've dug up, maximum is around 44 grams/in.^2. I
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