Electronics Forum | Wed Oct 15 09:49:16 EDT 2008 | slthomas
So, are you putting the loaded carriers into a batch oven, or unloading the carriers onto an inline oven conveyor, or something else? Also, have you talked to your paste supplier to see what they might suggest? They might have a paste with an extend
Electronics Forum | Mon Oct 20 15:14:59 EDT 2008 | robinj
Yup, just read that in the link Patrick sent. > Thanks again... Im going to have everyone screen > the boards for this carefully before processing. > I have also sent the board manufacturer an email > to get their comment on the matter. No PCB ve
Electronics Forum | Tue Oct 21 04:45:13 EDT 2008 | stanyserrao
Head 1 is not placing the parts in production. Same component is placed by head 2. Head 1 camera is camera 12 type and head 2 camera is type 8. Machine re-set done resent proper data and interchanged cameara still same problem was foundd in head 1.
Electronics Forum | Thu Nov 13 11:45:04 EST 2008 | pbarton
We have seen a similar problem. Turned out to be mechanical stress on the component caused by the method of location and clamping at ICT. Where is the component located on the assembly? Poorly adjusted clamping pillars on clamshell fixtures can cause
Electronics Forum | Wed Nov 19 09:44:09 EST 2008 | stepheniii
In Ontario it's "safety code 32". We have a radiation survey done at least once a year. To have the manufacturer do it, we have to pay air fare both ways and a hotel. After much searching I found someone local that does them. I ended up finding him
Electronics Forum | Thu Nov 27 10:55:51 EST 2008 | muarty
Hi Steve, Are you actually profiling the BGA itself? By that I mean have you, for example, drilled through the underside of the pcb into the balls of the BGA and attached a probe there? You may find that even although the topside components have a p
Electronics Forum | Tue Dec 02 02:11:39 EST 2008 | raranchado
We're using a PFC (Product Flow Controller) box by Cogiscan between a conveyor and Agilent SJ-5000 (AOI) and the problem we're having is that when the downline smema cable is connected to the PFC box, the AOI conveyor belt keeps on turning even with
Electronics Forum | Tue Dec 09 10:04:36 EST 2008 | lazzara55
SMT-ypw: Does PWB supplier start to implement PWB drying packaging? B3: YES! The fabrication of the PCB involves a series of wet processing that requires counter-measures to remove moisure. While some of the PCB processes also include bake cycles th
Electronics Forum | Wed Dec 10 09:29:59 EST 2008 | rgduval
Oops...just noticed you were referring to wave soldering. We'd still suggest a water-soluble flux, instead of the no-clean; especially at wave soldering. Also, checking pre-heat temps, and dwell time on the pot. Is the wave a chipper wave? If not
Electronics Forum | Tue Dec 16 16:49:22 EST 2008 | scottd3
We ran into this problem before, on all of our models. We never quite found out the reason, we do know that if the PCB is passed through a reflow oven that is extremely dirty with evaporated solder paste flux, it will make it extremely difficult (or
