Electronics Forum | Wed Jun 02 09:55:31 EDT 1999 | Jason Gregory
Hello Dan, I have recently started using polyimide, but not for the standard uses. I designed a pallet for holding small, thin (about .0018" thick) RF boards that were being reflowed inside their aluminum housings. They were screwed down to prevent w
Electronics Forum | Mon May 10 12:15:46 EDT 1999 | Boca
We have been having an ongoing problems with radial electrolytic capacitors (thru hole)for some time. 1. When we wash them in our inline cleaners the sleeving shrinks up from the PCB leaving the 'can' exposed. Some designs have traces on the surf
Electronics Forum | Mon May 10 15:17:37 EDT 1999 | C.K.
| If I clean my assembly and find no visable contamination with the unaided eye, do I need to do cleanliness testing prior to conformal coating? | More than likely, you're okay if you can't see any contamination with the unaided eye. However, the
Electronics Forum | Thu Apr 29 17:18:29 EDT 1999 | JohnW
| | | Anyone using hot air nife for wave soldering process. | | | Does it work? | | | Does it really eliminate solder bridging and does it create any other problems? | | | | | | any feed back will be much appriciated. | | | | | | Thanks | | | |
Electronics Forum | Wed Apr 28 08:04:26 EDT 1999 | Dave F
| | Thank for the input. But I guess I was looking for more. We have been transferring boards for some time and a have good working relationship with our primary CEM and have worked out many bugs. I was thinking more on the order and don't shoot m
Electronics Forum | Mon Apr 26 22:25:04 EDT 1999 | Big K
75) but the right thing is to change the light source in the robot that is rejecting PLCC's..it worked for us!!! | | Larry, | | | | I have seen this problem on our machine with PLCC 28's, same part same PD, same program except head 2 would place hea
Electronics Forum | Tue Apr 20 14:25:05 EDT 1999 | Stephen Smith
I am wondering if anyone has any info regarding solder paste misprint clean-up procedures for Entek Plus CU-106A PCB's utilizing a water-clean solder paste. In a implementation procedure they recommend a 2-3 minute wash cycle with the following crit
Electronics Forum | Sun Apr 25 12:01:58 EDT 1999 | Earl Moon
| Earl said, in essence: | | | Justin is absolutely right ... | | | | Again, Entek is not much more than a flux coating ... | | | | Metallic coatings protect best, as we all know - especially those electroplated. Those coatings chemical come in ne
Electronics Forum | Tue Apr 13 09:11:54 EDT 1999 | Dave F
| We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to
Electronics Forum | Tue Apr 13 17:44:29 EDT 1999 | Christopher Lampron
| We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to
