Electronics Forum | Fri Nov 01 18:59:54 EST 2002 | kenbliss
Hi Russ I have customers doing all those things all the time in the trays, I would be glad to talk off line. I tried to email you but it did not work, please email me your phone number or call me. Ken Bliss 510-490-8401 kbliss@blissindustries.com
Electronics Forum | Mon Nov 04 10:14:49 EST 2002 | blnorman
We manually handle boards all the time (repair, clean misprint solder paste, etc.). The workers know to handle with gloves, but it's a rarity that they do. We also use hand lotions in the plant, and a couple of times, lotion residue has shown up on
Electronics Forum | Mon Nov 04 14:45:01 EST 2002 | erikb
As a rule handling PCB's with bare hands is acceptable provided that there is sufficient esd protection as well. It is a good rule of thumb however to provide your inspectors or assembly people with finger cots or cotton gloves to keep the product cl
Electronics Forum | Wed Nov 06 11:12:33 EST 2002 | blnorman
I agree whole heartedly. Unfortunately in the different industries I've worked (garment, appliance, aerospace, and now electronics) this is a common issue. These procedures are in place for product reliability as well as safety. I trained at the
Electronics Forum | Wed Nov 06 11:35:19 EST 2002 | slthomas
Is it possible that your HVAC system activity is having an effect on your product, as in drying out (or adding moisture to) your paste, or something like that? Have you compared your profiles during wide swings on outside temperature? I'm still on
Electronics Forum | Tue Nov 05 10:15:01 EST 2002 | dason_c
We are using the custom pnuematic press to press the heat sink. You can use a force gauge to check the pnuematic cylinder or you can caluclate the force by the size of the cylinder, PI * squ R * Input pressure. Depend on the attachment method, by a
Electronics Forum | Wed Nov 06 19:59:39 EST 2002 | davef
Consider checking with your CC materials supplier for suggestions. It's to their benefit to help you do a good job using their product. Regardless of your current requirements, consider basing your workmanship on NASA-STD-8739.1 Workmanship Standar
Electronics Forum | Sun Nov 10 22:31:53 EST 2002 | caldon
Staking and Conformal Coating Training Program is provided by Soldering technology. http://www.solderingtech.com contact Mel Parrish or Dan Foster at : Soldering Technology International, Inc 102 Tribble Drive Madison, AL 35758 Telephone: (256) 461-9
Electronics Forum | Thu Nov 07 07:35:23 EST 2002 | cyber_wolf
If you are experiencing flux migration, try refrigerating your paste when not in use. This causes the flux viscosity to go up. I have seen flux seperate from the solder is when it is VERY old and out of date.Sometimes warmer ambient temperatures wi
Electronics Forum | Fri Nov 08 14:57:43 EST 2002 | slthomas
What I was told is that the stirring is intended to promote some shear thinning, not to redistribute the flux. The cartridges (and I'm assuming the syringes, too, if you're differentiating between the two) alledgedly introduce some shear thinning ju
