Electronics Forum | Wed May 17 16:01:48 EDT 2000 | Janet Tietz
I work for a small assembly company that is starting to branch into SMT. I have been choosen to run the setup since I have the most computer skills and greatest knowledge of componets in the shop. However, I am finding out I need a lot more knowled
Electronics Forum | Thu Mar 29 14:01:26 EST 2001 | Mike Konrad
Hi Bill, spin doctor Function: noun : a person (as a political aide) responsible for ensuring that others interpret an event from a particular point of view You made your point and I made mine. I will apologize to the readers for the excessive ban
Electronics Forum | Thu Apr 05 22:27:06 EDT 2001 | davef
As a band-aid, consider running your chip wave when soldering these boards [Similar to Cals "dance with me babe" suggestion.] If the problem is as broad based as you say and the radial components have a tight fit, consider increasing the holes by a
Electronics Forum | Thu May 03 18:13:40 EDT 2001 | johnthor
what are these kids doing in the dark with band-aids anyway? I'll bet you could get the same effect with Kapton tape (maybe yellow light?) Seriously, I use the IIT proframe Dave mentions down to 25 mil but have gone back to a permanently mounted foil
Electronics Forum | Tue Dec 14 12:00:34 EST 1999 | Kris Wiederhold
We recently reduced our standard aperture reduction to aid in the reduction of solder on gold defects. Since this reduction in aperture size, we have been experiencing exposed copper at the end of the component pads. The heel and toe joints are per
Electronics Forum | Tue Oct 12 16:38:24 EDT 1999 | Charlie
At present the band-aid fix is using epoxy 'dam' under the part and masking over the part to pervent excessive current leakage conmonent failure. These parts are first going through the reflow oven, where the epoxy dam is used to over come the leakag
Electronics Forum | Wed Sep 01 14:31:22 EDT 1999 | Dave F
| To aid in heat dissipation of our PCB, we would like to try having copper fill areas on the board that are hot air levelled and not covered with solder resist. Then, when the board is reflowed, solder paste would be applied and then solder. Has any
Electronics Forum | Tue Jul 07 07:44:23 EDT 1998 | Wayne
| Hey Dave... I agree with Steve, get them dry. Even though you are using DI water, once exposed to normal atmoshere the DI residue water will become contaminated. Fungus and board failure down the road. Not to mention if you plug it into test an
Electronics Forum | Sat Oct 06 08:36:04 EDT 2001 | davef
Your point about thermosets getting soft in the preheater of the wave is well taken. But an adhesive that is used past its expiry or other up-front lack of process control represent 99 & 44/100 percent of the reason for �glued parts falling off in
Electronics Forum | Thu Oct 24 15:45:10 EDT 2002 | seand
Hello TEC, This may be a good question for the Apps Engineers at your dispenser manufacturer. By providing the identity of the epoxy and the components you are placing, they should be able to make some recommendations for getting the proper dispens
