Electronics Forum | Thu Dec 07 14:19:07 EST 2006 | russ
You have two options 1. Get some real solder mask form board supplier (not touchup pens) and repaint the trace and heat cure. 2. Fill the via with solder before reflowing new part, this usually works but sometimes it doesn't. We use Method 1 Russ
Electronics Forum | Thu Dec 07 20:00:10 EST 2006 | mgdrouin
Can anyone help me with some information regarding microscopes? I need to purchase several that will be used for fine pitch soldering and inspection. The company is currently using Alhpa ISIS scopes and would like to purchase more of the same type.
Electronics Forum | Mon Dec 11 17:19:12 EST 2006 | darby
Hi AJ, Thanks for the reply. I'm beginning to think that we have some issues with different expansion rates of the two pcbs. When you say you had some profile issues... Did you stay within the recommended UBLOX reflow time of 20 - 40 seconds and di
Electronics Forum | Mon Dec 18 04:11:11 EST 2006 | greg york
Probably because the flux manufacturers have deemed it necessary to increase flux volume by 20 - 25% compared to Leaded this is why more is being left over. Really not convinced of this increase in volume actually does anything. Black residue will be
Electronics Forum | Sun Dec 10 21:40:40 EST 2006 | villu
few days ago the camera picture started jumping like a TV between signals.. the blue Cable between the control board and the computer was Broken (last 3 threads) so we changed it.. but the problem is still there.. tested with another machines Compute
Electronics Forum | Fri Dec 15 00:20:17 EST 2006 | hemu_me
As we have vitronics oven(SMR610A) made in december 1997,which has 5 heating And 2 cooling zones. we just want to confirm that is there any possibility of damage oven parts with long run for soldering of lead free components in this model? if anyone
Electronics Forum | Fri Dec 15 07:40:40 EST 2006 | kvanzill
Thank you for the suggestions, I did change blades and we did try another printer, problem still exists and it is across several different products but only that line. One thought is aperature size since we over print for other reasons due to part d
Electronics Forum | Fri Dec 15 09:44:38 EST 2006 | mashmo
Hello I am a circuit board designer and just wanted to ask if anyone is seeing the need to alter footprints for ROHS assembly. I also wanted to make sure that I have this particular issue correct. If your BGA is lead free then used solder paste with
Electronics Forum | Mon Dec 18 23:24:50 EST 2006 | grantp
Hi, Yes, I would hate to resort to cleaning, but the product must be clean. We have been using palettes to keep most of the flux off the PCB, but there is still residue around the connectors. Does anyone suggest a good no clean flux to use with le
Electronics Forum | Wed Dec 20 14:30:07 EST 2006 | Polynesian Pebbles the Joker
Hey pr...sure it's warm there, but I also hear that in that area where you live it's not too uncommon to have a kiddie pool in the front yard (with a couple of darkies in there), pickup truck parked on the front lawn, chain-link dog jails, with you o
