Electronics Forum | Thu May 13 20:38:32 EDT 1999 | lima
Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? My concern is the volatiles in my WS629 solder paste may be attacking th
Electronics Forum | Tue Apr 28 19:20:53 EDT 1998 | Steve Gregory
| We want to produce BGA�s which will be see burn in conditions | of 140�C / 24h active tested. | Now we think about problems for the solderball uniformity. | Does anybody know about problems or about special solderball | alloys for such productscon
Electronics Forum | Fri Apr 24 20:33:06 EDT 1998 | D.Lange
| Looking for anyone who has experience with high temperature soldering. Need to determine why solder joints are failing. Thermocycling of unit is -40C to +140C, 30 minute dwell time, 10 sec. transition time | Your help is appreciated | Ed Holton |
Electronics Forum | Mon Aug 06 09:15:01 EDT 2001 | gdstanton
|120 |140 |160 |180 |180 |190 |260 | with a belt speed of about 28 IPM. The uBGAs are placed parallel to each other along the smallest side. The small edges closest to each other are raised slightly and form a "hill" when looking from the horizon o
Electronics Forum | Tue Nov 13 11:22:50 EST 2001 | fmonette
Dave, Hany, I was actually surprised to hear that topside SMT components can reach such a high temperature during wave soldering. If this is the case then the concern for component damage is very valid. This morning I discussed this issue with Jac
Electronics Forum | Tue Nov 13 19:58:28 EST 2001 | davef
No. I have never measured the temperature of the top of a BGA package during wave soldering. Mr. Kelly�s "actual body temperature" of 140-150�C during wave soldering is probably accurate [most of the time]. It�s the utility of this measurement tha
Electronics Forum | Wed Jan 23 22:30:46 EST 2002 | Jones
The CP-65E handles a wide range of board sizes, including large boards up to 508 x 457 mm or 20 x 18 inches. Handling consumer as well as industrial applications, this durable and highly efficient machine achieves a cycle time of 0.12 seconds/shot an
Electronics Forum | Thu Jun 20 05:09:41 EDT 2002 | mattiasw
I am running a VisionPoint AOI equip. from DiagnoSYS, and I have a question regarding the calibration of brightness on the cameras. When I run system Calibration to check the camra brightness I should have the following values: Cam#1=126 Cam#2=126
Electronics Forum | Wed May 21 14:44:38 EDT 2003 | blnorman
We currently use Vigon SC-202 in our spray in air system. SC-202 has 830g/l VOC content, so I don't know if that will help reduce your VOC's or not. We used Smart Sonic 440-R in ultrasonic application with great results, but we haven't tried it in
Electronics Forum | Fri Nov 21 14:11:09 EST 2003 | russ
We have a customer with the same requirements. We use a hot air pen to rework the caps. This is supposed to eliminate the thermal shock that is present when a soldering iron is used. The solder iron tip temp is usually 600-700 degrees and comes int
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