Electronics Forum | Thu Mar 16 12:22:21 EST 2006 | stepheniii
Larry, I have said this on the forum > before. > > THE ONLY WAY TO KNOW IF OVEN HEATER > SET POINTS ARE CORRECT IS TO ATTACH THERMO > COUPLES TO YOUR PC BOARDS AND RUN A THERMAL > PROFILE WITH A DATA-LOGGING DEVICE! > > Anything > other than t
Electronics Forum | Thu Mar 30 08:38:58 EST 2006 | Dan
We have this panel that is Gold Flash. Am I correct in assuming this is technically a lead-free panel then? We are running a WS paste, and the QFN28 has balls of solder instead of a fillet. My Max temp is 216, and the TAL was between 52-57 secs with
Electronics Forum | Thu Mar 30 09:32:54 EST 2006 | russ
Not arguing dan, but are you positive that they are not copper? anyway, what is happening is as the parts sucks down onto the board from reflow the extra paste is notnecessarily sqeezed out but it has no place to go. So it will form this ball on th
Electronics Forum | Wed Apr 19 06:56:54 EDT 2006 | QTEK Manufacturing Ltd. www.qtek.com
QTEK Manufacturing Ltd. provide a solution to the above problem, QTEK Cover Tape Extender adds an extra 380mm to cover the tape of component reels. It saves components being wasted or discard when strating a new tape through a feeder, and enables the
Electronics Forum | Wed Oct 11 14:23:46 EDT 2006 | Steve Gregory
I don't know why anyone would even want any of this stuff since you get paid for the solder that's in your dross anyway. The way I look at it is that it's really a GOOD THING to have some solder come out with the dross while you're de-drossing your
Electronics Forum | Tue May 09 14:56:43 EDT 2006 | JW
An option to consider is leave top and bottom heaters settings the same; to get correct liquidus time and temperature on one side, you will have some amount of reflow on the second side. If you have BGA's, QFP's on the bottom side yet they are smalle
Electronics Forum | Thu May 11 17:28:40 EDT 2006 | bradlanger
Steve, We have had the same problem at my company and unfortunately I do not have any good news for you. We are using a pizza slicer type depanalizer from FKN and if the MLCC caps are layed out too close to the edge they still break. We had to add th
Electronics Forum | Fri Jun 02 09:53:11 EDT 2006 | ratsalad
I used 1' of McMaster part # 8821K6 (0.110" thick). It is rated to 600F. I believe I put four layers over my profiler but I'd recommend starting with two. If you need more you can add it. Make the sock good and tight because the fabric seems to h
Electronics Forum | Fri Jul 07 06:55:02 EDT 2006 | Rob
I HATE them. I have tried most types and am not impressed. By the time you add on all of the extras such as tape feeders, trays, nozzles, guidance, etc. you could nearly buy a used Mydata/Contact/Quadra/Versatronics/Quad/Daum which would give you p
Electronics Forum | Fri Aug 18 11:26:08 EDT 2006 | Board House
Hi Mark, Couterbore is possible in two way's during PCB Manufacturing. Couterbore plated and non-plated. Meaning that the entire hole will either have to be Plated or Non-Plated. Prefered Methode is Plated, to accomplish this your PCB house would
