Electronics Forum | Fri Dec 16 11:04:23 EST 2005 | chunks
Over all time will be dictated by your conveyor speed. Your conveyor speed will be dictated by your products time above liquidous. Time above liquidous is dictated by the manufacturers specification. Time and temp before reflow will have to be ach
Electronics Forum | Wed May 09 13:37:07 EDT 2007 | jmills
Greetings Tried to search past threads without an answer. I have a resistor that just fits the between pads. Some of the resisitor were installed without the termnation sitting on the pad and are infact sitting on solder a good .020 to .025 above th
Electronics Forum | Wed Oct 17 12:56:18 EDT 2007 | jmelson
The outboard I/O card is similar on both versions. But, that's where the similarity ends. The III machines (1306/40 and above) have a row of vertical boards that plug into a backplane on the bottom of the box. The 1306/20 and earlier have the boar
Electronics Forum | Mon Jan 12 03:55:27 EST 2009 | prkonrad
Sorry, if my first comment was a bit offensive against PCB manufacturers (it was not really intended :( ). We have already discussed the above mentioned issues with the manufacturer, and they stated, that everything is within specification... (and y
Electronics Forum | Thu Jan 29 11:30:56 EST 2009 | rgduval
As others have said, you'll have some difficulties getting good reflow on pb-free out of a 3-zone oven. We did it with a 4-zone for awhile, but only had really good success on low thermal density boards. That said, you should definitely check your
Electronics Forum | Fri Mar 26 17:12:43 EDT 2010 | spitkis2
Krish, Looks like your peak temperature is around 230C and time above 183C is about 120-150 seconds. This is excessive for a leaded BGA. You should be aiming at 200 - 215C as the peak joint temperature with time above 183C of 60 -90 seconds. The p
Electronics Forum | Fri Oct 14 12:03:32 EDT 2011 | fborja3
I want to start an assembly that may require use of SMT machines such as SMT assembly, bond wire, Xray and PCB fabricator machines. I apologize I am not to savvy with the technical names such as the above but I just want something not to costly or e
Electronics Forum | Sat May 03 14:06:25 EDT 2014 | jyo_409
What are the possible reasons for electrolyte leakage What is the purpose of the vent in the capacitor? Why vent is not being maintained for all types / values of the capacitors? What is the significance of the end seal configuration. Why end seal co
Electronics Forum | Thu Jul 10 21:11:11 EDT 2014 | andrespena
@Alexei Shkolnik Ah, I hope this doesn't become a problem. But if it does perhaps we can redesign the whole system? Push the components with a pusher that's connected from above rather than pulled by a magnet below. Perhaps the pusher can still clim
Electronics Forum | Tue Jul 21 10:38:54 EDT 2020 | artyvesna
Thanks a million. We are quite restricted with available length for the oven (about 5meters/16.5ft).Throughput itself is not so much of a concern, it is ability to be precise with thermoprofiles together with some future proofing (extra capacity) tha
