Electronics Forum | Fri Aug 19 05:20:40 EDT 2011 | kemasta
Hi! I am searching for a glue type which use for security purpose. The glue must not able to rework after full cure and fast curing time (within 5~10minutes). I have some sample in hand, but it seem quite expensive considering the volume that I am
Electronics Forum | Mon Aug 22 06:30:59 EDT 2011 | janz
very often toes on the QFP packages are exposed to base material and during time they oxidize. That is why you can have problem with solder fillet. Most important is heel fillet. Regarding your misalignment of IC if this is repeatable check your pl
Electronics Forum | Sat Aug 20 13:23:22 EDT 2011 | saju86ece
Hi, We are facing solder ball issue in Chip component of PCB. We had tried DEK parameter setting changes and also reflow setting but still now not yet solve this problem. board details are, 1.Class 2 prodct 2.HASL Finishing Plz advice me what actio
Electronics Forum | Thu Sep 08 15:05:59 EDT 2011 | shannond
You could always go out on the floor with the tech and do the PM with them. That way you would have 1st hand experience and would be able to offer some creative insight as to how this person could better manage thier time. Or you can post a question
Electronics Forum | Tue Aug 23 12:13:02 EDT 2011 | richieoreilly
Hi, We are currently having issues with hand soldering High melting point solder wire. Can anyone give a few tips. We are Preheating boards to 120 deg C and using soldering irons @ 410 deg C. The quality is ok but the ts taking 20-30 seconds to c
Electronics Forum | Wed Aug 24 03:17:21 EDT 2011 | richieoreilly
Hi, Thanks for the info. The current process is a standard SMT hand soldering process. The time does not include cleaning, prepping and pre-tinning. Its just the time for the re-flow of one joint itself. We are waiting on some new tips to experimen
Electronics Forum | Fri Sep 21 09:34:48 EDT 2012 | tkotwal
Melissa, Thank you very much for your detailed instructions. I'm sure that will be a huge help when we start on our next board. The only question I have left is whether you prefer a hot air or infrared preheater. It looks like Hakko makes both type
Electronics Forum | Wed Aug 24 08:37:56 EDT 2011 | bobsavenger
Just wondering what everyone is using to verifiy Wave solder pre-heat temps before the wave. Temp dots seemed to be the way in the past but I'm wondering how many are using IR temp gun and if they have noticed any differences between the temp dot an
Electronics Forum | Sat Aug 27 09:17:17 EDT 2011 | davef
We assume from the way you wrote the posting that we're talking about bare boards delivered from your fabricator. If that's the case, the best way to clean these boards is to tell your supplier to clean the boards before sending them to you. You shou
Electronics Forum | Fri Sep 02 16:30:02 EDT 2011 | duso02
Rich That is a standard reaction with Humiseal 1A33, nothing to worry about. Find a board that was coated over year ago and had been heated up at all and it will be an amber color. It does not violate the IPC for discoloration. We have coated boards
