Electronics Forum | Wed Nov 19 18:43:04 EST 2014 | gregcr
Hi All, I've been in the CM world for a long time and it seems like there has been little change in the packaging techniques used at the end of the day. Assembled circuit boards in small/flex volume are bagged or bubble wrapped and boxed up to ship
Electronics Forum | Thu Nov 20 04:02:02 EST 2014 | hhat
PCB layout of the circuit components, to meet the requirements of anti interference design: 1* arranged for each functional circuit unit in accordance with the circuit flow position, the layout of the signal for circulation, and make the signal as m
Electronics Forum | Fri Nov 21 07:57:40 EST 2014 | deanm
Everyone deals with a number of loose SMT parts during production. These usually come from machine attrition (dumped parts), a few parts that are lost during feeder tape changeover, dropped inside the machine, etc. I will categorize them as: A. Ide
Electronics Forum | Fri Nov 21 13:37:36 EST 2014 | gregp
If there are parts "non-identifiable" then you don't know their cost. Parts under a certain cost you don't worry about. That leaves only category "A" parts to concern yourself with. Know your attrition rates especially for parts over a certain cos
Electronics Forum | Sun Nov 23 01:38:49 EST 2014 | alexeis
Hi, We have clients who developed a similar model and even some of them turn it on for some time. The problem is the high cost of ongoing maintenance. What is true, the system allows to study weak places of pre-production and our customers were able
Electronics Forum | Wed Nov 26 15:01:07 EST 2014 | dhollland
No, guess I should have tried to explain it better. If I am trying to place a component at X-31.6 and Y52.8 What is the tolerance +/- that the machine will put it at that exact location. I know it's not going to place it at exactly that spot every
Electronics Forum | Thu Dec 04 10:46:42 EST 2014 | spoiltforchoice
I have no idea what your Festo looked like. But the ability to move a component freely in xyz and rotate it is what you get from a typical manual placement station. You don't get that with tweezers or vacuum pickup pens. I've seen people make all so
Electronics Forum | Thu Dec 04 10:59:02 EST 2014 | rrosera
HI, I work for a company in New England and recently had a unusually large number of boards fail after replacing a BGA on them. We use a AirVac DRS25 to remove and replace the BGA witch uses local forced hot air. We usually have at least a 90% s
Electronics Forum | Fri Dec 05 13:57:37 EST 2014 | emeto
Hi, Do you observe any part warping in the corners? Do you X-ray 3D? I really doubt that all joints are fine and the part wouldn't work, but if so, your problem should be part related.If you have a temperature controlled facility I wouldn't even thi
Electronics Forum | Wed Dec 10 16:14:37 EST 2014 | jimpat
The 300 degrees is the temperature as measured at the sensor. The actual air temperature just above your PCB may actually be much less. If the oven is properly calibrated then the 300 should represent air temperature at the board but I have seen ma
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