Electronics Forum | Mon Jun 18 19:37:02 EDT 2001 | Gil Zweig
You can use your x-ray inspection system to QC incoming multi-layer printed circuit boards. In particular you would want to insure drilling registration. A drilled, plated through hole, precipitously close to a ground plane can have , in time, copper
Electronics Forum | Wed Jul 04 02:04:22 EDT 2001 | Mike
Hi Dave, Thank you for your information. How about the glue print on PCB and not mount component, what is the idae to inspection this glue is suitable for mounting component. For example insufficient glue excessive glue. Because we found the problem
Electronics Forum | Tue Jul 17 19:52:02 EDT 2001 | dougs
Does anyone remember the name of the company that had a small inspection system located on the tact line behind the CP732E from Fuji and the reflow oven? It was a real simple system located on top of a standard conveyor. Pick your brains and let me k
Electronics Forum | Thu Aug 02 12:43:14 EDT 2001 | nwyatt
Wave rider is an oven profiler made by ECD. http://www.ecd.com. They are commonly known for their MOLE. The wave rider is different from the MOLE because it is used to measure the temperature, conveyor speed, etc. of the OVEN instead of the pcb.
Electronics Forum | Thu Aug 02 19:48:53 EDT 2001 | davef
IPC-7711 & IPC-7721 Training and Certification Program Detailed information on the industry standard program for rework, repair and modification of electronic assemblies. [http://www.ipc.org/html/fstraining.htm] Guides and training at http://www.cir
Electronics Forum | Mon Feb 07 14:59:52 EST 2000 | Erhard Hofmann
Is the manufacturer of vapor phase ovens, Centech Corporation, Minneapolis, still existing? I tried a phone number I found in a manual (612/881-8245), it has no connection, I did not find any sign on the internet. Can anyone help me to find them for
Electronics Forum | Mon Feb 07 13:00:06 EST 2000 | Jose RG
Hi, Last Friday, we had a new defect in our line. We found a nice and shiny solder fillet completelly attached to some component leads (in a SPLCC 84) but the solderjoints were not solder to the pads. (Hasl finishing) Any idea ?? Some contamination
Electronics Forum | Tue Feb 08 03:14:37 EST 2000 | Roni H.
Hi Jose, J-lead are very sesitive to coplanarity, which is the major cause for the defect you described. Other posibility is that there is not enough solder paste ; J-lead need around 10% more solder past then L-lead, You have to consider the screen
Electronics Forum | Tue Feb 08 12:57:42 EST 2000 | Travis Slaughter
I have had the exact thing you describe happen to me, at least it sounds the same. On the PLCC there could be maybe 1 leg not soldered or many of them tending to be in groups but not necessarily. This happened on a established board that had always
Electronics Forum | Sun Feb 06 15:26:32 EST 2000 | Carol Zhang
I have a board which contains brass spacers. The spacers will pass through the wave during soldering. I found a silicon-rubber cap that can prevent solder climbing up into the spacer. However, the cap influence the wave flow and reduce the solderabil
