Electronics Forum | Sat Apr 14 03:25:04 EDT 2001 | kpliew
Hi , As far as I experienced with wave reflow. If u have a refective thermal reader , u will see that the board is exposed to much more temp than the 120 deg that u set. Actually , once u see the board warp or comp. crack u should know that
Electronics Forum | Sat Apr 14 03:25:10 EDT 2001 | kpliew
Hi , As far as I experienced with wave reflow. If u have a refective thermal reader , u will see that the board is exposed to much more temp than the 120 deg that u set. Actually , once u see the board warp or comp. crack u should know that
Electronics Forum | Tue Jan 11 10:02:43 EST 2005 | jdumont
Good day all, we have an evaporator for our PCB washer that has been fine up until recently. Everytime we run it, it boils over and makes a HUGE mess of everything. Any suggestions as to why this could be happening? Is it possible the temp controller
Electronics Forum | Wed Jul 04 12:18:14 EDT 2012 | davef
Phil is correct in his description of proper rework technique. Possible explanations of the reason for popping of your BGA are: * Thermal cycling of components cause them to flex on a different point in the cycle that the board possibly resulting in
Electronics Forum | Mon Mar 11 09:38:05 EDT 2013 | markhoch
Maybe I misinterpreted, because different people have different names for different devices, (i.e... I believe that the device that you refer to as your "surveyor", I refer to as a "profiler"), but did you already determine that your oven thermocoupl
Electronics Forum | Mon Sep 27 16:52:48 EDT 2021 | aex
During production the temperatures on the last 3 zones are approx. 20F higher than the setpoint. The other zones are operating within spec. We checked power, I/O, SSR's, thermocouples, and exhaust, but the issue remains. We did not check resista
Electronics Forum | Thu Oct 12 12:22:52 EDT 2000 | stefano bolleri
This is a question about LCDs (Liquid Crystal Displays) packaged as SIPs or DIPs. My question is: can they be wave-soldered? I found process recommendations on Web pages of several LCD suppliers, and they pretty much all say that LCDs should NEVER be
Electronics Forum | Mon Mar 22 16:59:15 EST 1999 | B K
| Has any one seen failures of chip resistors after 1-2 years where the junction between the silver termination and the restive element on the top of the ceramic has corroded through. This results in a high resistance failure after this period of tim
Electronics Forum | Fri May 07 12:39:01 EDT 2004 | rontdc
Bruce, Using a foam fluxer with no-clean flux is a very touchy situation. It is imperative that the specific gravity of any flux be maintained within the manufacturers recommendations. If it is not, you will get icicles and bridging. Maintaining the
Electronics Forum | Thu Dec 15 08:09:06 EST 2005 | GS
Hi Liza, several years ago we had problem like that only with Carrier Tape made by Ploycarbonate material and by using High Speed pick & place. Very few pbms met by using low speed P&P machine. Problems have been solved by using Polystirene Carri
