Electronics Forum | Thu Jun 21 16:30:47 EDT 2012 | grauen06
We are currently using an ACE K.I.S.S. 104. We used SN100 solder with AIM NC265 flux (no clean, alcohol-based). Also, we use topside preheat at 100 degrees C and a 6mm nozzle (as big as we can go with this application). The PCB has a matte finish as
Electronics Forum | Tue Jul 03 16:15:08 EDT 2012 | kq702
Hi, when they did the reflow with the south bridge chipset they took a heat gun and went arround the chip in circles. This is what I did with the broken apple motherboard. I covered the board in tinfoil and cut out the squares arround the gpu, cpu an
Electronics Forum | Mon Aug 06 14:44:07 EDT 2012 | joefosho
Hey guys, I'm new to this forum and registered to ask a question about PCB assembly cost. I was hoping to design a PCB that will be approximately 6" by 6" with about 1100 0805 SMD components on it. Half of them being resistors (3 different values) a
Electronics Forum | Wed Aug 08 12:20:51 EDT 2012 | swag
We have a Kaeser AS-25 screw compressor with Kaiser air dryer + cylinders. The system has a water catch prior to delivering air to the dryer that automatically "spits" to a drain. It's not fool proof - if the water collector gets overfull, it will
Electronics Forum | Wed Aug 15 08:33:31 EDT 2012 | jdumont
Wondering if anyone has ever run across this in their travels. We have gotten a few field returns back in recent months and it appears that many of the balls of the PPC440 CPU BGA (ceramic) have shifted. I know we Xray this part 100% during assy so
Electronics Forum | Thu Aug 16 12:46:47 EDT 2012 | derekj
Thank you for your reply Bob. 1. It appears the machine is picking the part up, hovering over the board and rejecting it. So it's not blowing the parts out of the pocket. Turning the vv off still results in the same issue. 2. All the tolerances are
Electronics Forum | Tue Sep 18 10:52:14 EDT 2012 | sarason
Sounds like a plan. The usual way is to count how many you use on the job either by pre-calculation. Or how many clicks the machine counts and save the data before switch off, then drop it back into a spread sheet. This depends very much on the mach
Electronics Forum | Thu Aug 30 13:02:37 EDT 2012 | rway
This may have been asked, but what ESD protection does your facility already have? With proper techniques and equipment, this should be a non-issue. As long as folks aren't using the pcb's to comb through their hair, you don't have to worry about i
Electronics Forum | Thu Aug 30 22:44:05 EDT 2012 | rway
I'm not saying that any unexplained failure is caused by ESD and I certainly am not promoting fear. I sleep very well at night (except after eating Mexican food, which can cause discharges as well). What I am saying is that ESD is a real threat and
Electronics Forum | Tue Oct 16 12:49:51 EDT 2012 | ericrr
What have you learned so far via google? I just put SMT placement machine" into google and got http://en.wikipedia.org/wiki/SMT_placement_equipment I am not sure what the bottom picture means (SMD pick-and-place machine (with simulated motion blur