Electronics Forum | Wed Oct 17 17:43:27 EDT 2001 | davef
2) Open time: A 15-minute queue between paste, place, and reflow SB fine, assuming humidity is not too great. 3) Wash temperature: Yes. A wash temperature of 130-140�F SB fine. 4) Reflowed board was left too long prior wash: Are you washing: * After
Electronics Forum | Thu Oct 18 11:20:21 EDT 2001 | davef
Ooooo, you do have the toys, baybeee!!!! This really is not a good situation. * Leaving this OA flux res on your boards will surely affect the LT performance of your product. * That a rookie found this by noticing solder balls all over the seconda
Electronics Forum | Tue Jul 28 14:34:47 EDT 1998 | upinder singh
Hello everybody. Remember I posted some questions on the smtnet regarding placing the thru hole connector using paste and reflow(pin in hole). I have able to accomplish the process succcesfully.....but I have a problem. The boards are failing at the
Electronics Forum | Fri Apr 22 05:01:19 EDT 2011 | azrina
Hi, I am doing my master degree in flux cleaning process for flip chip assemblies and required to establish a new receipt for flux cleaning. currently, i am doing screening process for the parameters involve ; temp,pressure, surfactants, speed and a
Electronics Forum | Mon Apr 17 19:46:39 EDT 2000 | Dave F
Murad: Your customer is smart to be concerned about the affect of changing production processes on product reliability. Your Company is smart to inform customers and keep them in the loop about these changes. In developing your demonstration of th
Electronics Forum | Thu May 04 11:37:25 EDT 2023 | proceng1
Thank you. I do feel that the document is very lacking in detail. It mostly says "yes, it needs cleaned. Make sure the cleaning process doesn't screw it up". The majority of boards that get wiped are already populated on the other side. So that lim
Electronics Forum | Wed Sep 01 14:58:59 EDT 2004 | Shean Dalton
To address the last sentence of the recent posting, Austin American Technology does have experience with board cleaners as described. More recently AAT developed a cleaning system simliar to your description called the AquaBatch. The AquaBatch was
Electronics Forum | Thu May 04 01:52:17 EDT 2023 | davef
Look at IPC-7526 - Stencil and Misprinted Board Cleaning Handbook, Misprinted Circuit Board CleaningCLEANING [ https://www.multi-circuit-boards.eu/fileadmin/user_upload/downloads/leiterplatten_design-hilfe/ipc-7526.pdf ] ITW/EAE says "Typically, th
Electronics Forum | Fri May 12 07:41:15 EDT 2023 | tommy_magyar
Although I see the advantages in your method, not sure though how to deal with the following: 1. Your batch is actually only one board (or panel) - this would not work in a low volume manufacturing environment, unless there are other jobs set up on t
Electronics Forum | Mon Jan 27 12:02:00 EST 2003 | Mike Konrad
Dave is correct. No-clean flux + water = white residue (unless the proper chemical is mixed with the water). Additionally, no-clean flux + IPA = white residue. Many saponifiers work well as do other cleaning agents. White residue may also be a re