Electronics Forum | Sun May 21 05:54:04 EDT 2000 | Sal
Currently manufacturing double-sided PCMCIA cards with a nickel/gold finish, which are 0.0235thou in thickness, using surface mount carriers. Problem we are seeing is when building the densely populated side on the second pass we are seeing lifting o
Electronics Forum | Sat May 20 16:12:21 EDT 2000 | Earl Moon
Kathy, I couldn't not get involved here. A question of particular interest not in the normal vein or type. Wow! Good to see from you again even on the SMTnet. I still appreciate the help you gave on the DEK Proflo issue about two years ago. I just
Electronics Forum | Wed May 10 17:22:43 EDT 2000 | Earl Moon
Andy, I have no bad feelings about this forum. I want more than most to see it succeed. We need a high technology capability to present exactly that. It ain't doing that anymore. You're appealing to the wrong person to promote you new positive think
Electronics Forum | Sat May 06 08:42:18 EDT 2000 | Dave F
Hi Steve: Easy question, Klein Wassink is THE BOOK. It is head and shoulders above the others. Coombs: Very good book, focused primarily on board fab with some discussion on assembly. Lea: A dated, once very good book. Rahn: Average book. Actu
Electronics Forum | Wed Apr 12 20:41:31 EDT 2000 | Dave F
Russ: That�s a pretty stand-up postin� bud. It�s neat that you can root-out that dirt. We couldn�t dig-up that stuff, if they threatened to shoot the dog. You could be correct about using convex for waving. We don�t wave RNET as Philips suggests
Electronics Forum | Tue Mar 21 20:33:09 EST 2000 | Dave F
Shane: We don�t dispense, but we have thought about it. Several points about peelable solder masks in a no-clean (low residue) process: � Beware of latex peelable solder mask with a low res process without extensive testing. The problem is usuall
Electronics Forum | Wed Mar 01 16:52:43 EST 2000 | Dave F
Hey Hany: Here yago: On power outages: Talk about fun!!!! Can we have more of �em?? � You�re correct that a UPS to run your reflow is very expensive, but all you have to run is the belt motor. That�s "cheap!!!!" Get UPS sizing information from
Electronics Forum | Fri Feb 25 04:46:36 EST 2000 | Jeff Sanchez
Hey Travis, Thanks for the response. I did find a simple profile to use. As you said it took alot of trial and error. I was just looking for a good place to start. As for questioning the capability of a batch reflow oven,they have good reviews f
Electronics Forum | Thu Feb 17 21:45:26 EST 2000 | Dave F
Steve: Wadja mean "I fixed it, now tell me what I did to fix it." Steve, you�re one scary guy. ;-) "Steve�s Longer Pad Theory" - Stubby pads will not make solder flow-up the leads of a QFP100, leaving sparse solder on the pads. Given a choice, s
Electronics Forum | Thu Feb 17 22:30:09 EST 2000 | Dave F
Alberto: There's no rules, but it works sorta like this: RESISTORS Usually marked in ohms using a standard code: First two numbers is the value Third number is the multiplier 102 = 1.0 x 10� ohm = 1000 ohm = 1 kW CAPACITOR Usually not marked. When
