Electronics Forum | Wed Feb 13 10:39:36 EST 2019 | spitkis2
The QFN will add an insignificant amount of thermal mass since its all in the housing. You just need to make sure the package does not exceed the recommended peak and duration so as not to damage the die internally. Usually the limit is around 250-
Electronics Forum | Sun Feb 24 09:13:38 EST 2019 | spoiltforchoice
Look on this forum for a link to SMTMaestro which does just that. Fab3000 is almost there with its BOM tools and has a bunch of handy features, its just that they have not considered this use case instead focusing on recreating the centroid from gerb
Electronics Forum | Fri Mar 29 15:43:26 EDT 2019 | tjs1634
We handle a similar SMTA quantity in house and use a 5 zone SMTmax AE-F530C 220V Single Phase Equipment Outline Size L-2000* W-612* H1220 mm Heat Zone Length 1000mm Equipment Weight 180kg Max power 7kW Belt Width 300 mm PCB Size 280x280 mm Comp
Electronics Forum | Wed May 22 09:18:55 EDT 2019 | emeto
Hi, from what you are saying I am not sure you need turret head. One operator means you will prefer a machine that has feeders on the front only. Remember that the machine speed has nothing to do with the number of boards you are going to produce. R
Electronics Forum | Thu May 16 07:40:09 EDT 2019 | Matt
Hey Everyone, we have recently been discovering an increase of failed MLCC capacitors across various builds and after being in the field for some time. Vendor reports that a "high energy" event occurred but the detail is limited and i'm left looking
Electronics Forum | Tue Jun 11 11:22:19 EDT 2019 | sumote
If the board is just not reaching the temps you need, you could place them in an oven to "preheat" them. When I was building a rather thick board with a copper core I had to do this. Since we were only doing small runs it was feasible, I don't know y
Electronics Forum | Thu Aug 22 16:25:18 EDT 2019 | scotceltic
Yes, unfortunately a lot of datasheets these days do not contain the temperature resistance to determine if it can handle the PIP application. In the past I have always used a 250 C at a min of 5 sec for the material. Also, the part should have sta
Electronics Forum | Tue Jul 30 12:46:15 EDT 2019 | davef
I'd be surprised if CCGA leads were getting bent or tilted during the reflow soldering process. If they were bent during handling, that would be less surprising. 235*C on the body for a minimum peak temperature of 208*C at the connecting leads does
Electronics Forum | Wed Aug 07 11:31:59 EDT 2019 | robl
Hi @Spoiltforchoice, 5yr warranty isn't for UK, and the printers, smt, ovens and AOI are all treated differently with separate call out charges, We never get one crew in with one set of travel costs to service all. Also single line solution isn't in
Electronics Forum | Thu Jan 02 22:23:54 EST 2020 | jakapratama
Hello Pak Agus, Was there perhaps a change in solder paste? There has been confirmed occurrence in your case which happened in the work place I was before; all same parameter, equipment, material, and suddenly solder ball outbreak happened across al
