Electronics Forum: longer (Page 51 of 116)

ENIG

Electronics Forum | Thu Jan 22 20:14:44 EST 2009 | herman

If you wish to specify ENIG, your best method of doing it is to simply invoke IPC-4552 (or IPC-4553 for immersion silver) on the fabrication drawing. These IPC standards define ENIG and IAg, and I believe they specify 150-180 uinches of nickel covere

SJ10 AOI system from MVT/Agilent

Electronics Forum | Fri Feb 13 13:28:12 EST 2009 | ccross

Need some help here. Our RS-1 Rework Station that we purchased with our AOI system crashed. Agilent is no longer supporting this product. We have not been able to recover a driver for the video card or the opto board in the system. These should be *.

0402 tombstoning and dewetting on QFP256 trade-off

Electronics Forum | Thu Mar 12 06:37:48 EDT 2009 | gregoryyork

I agree you are too cold for the profile get it up to 230C and possibly allow it to dwell a little longer in preheat as opposed to pushing up the reflow zone only. Sn90/Pb10 melts at 220C so 2C hotter than your profile so you are reliant on it alloyi

BGA Rework - Pads being lifted

Electronics Forum | Mon Apr 06 11:46:10 EDT 2009 | c111

I agree the longer soak will help provided you are not applying to much heat/time to the board now. -are the pads that lift connected to anything? This has happened to me in the past where un-connected pads would come of far easier than those connec

0402 tombstones

Electronics Forum | Wed Apr 15 17:16:00 EDT 2009 | rmitchell

Hi, I am trying to reduce some 0402 cap tombstones. The main cause is the pad spacing is a little too far apart and the parts are as tall as they are wide .5mm I am stuck with the pad spacing for a while. All other parts are soldering well, even 0

solder skips in chip wave on a NU/ERA wave solder

Electronics Forum | Tue May 26 06:56:40 EDT 2009 | xinxi

Hi! From your post, it seem like the wave did not really touch the component. You probably need to get the both wave height correct and that it hits the component.It is normal for solder to come through the PCB when using chip wave. The through-hole

BIRAL T&D Lubricant

Electronics Forum | Tue Jul 07 07:08:23 EDT 2009 | daxman

During a service call, We had a FUJI guru tell us that Biral was actually not a great lubricant for LM rails or rust prevention because it thickens and gums up quite quickly, which is true. His recommendation was to use TFL-50 wet lube. We've been u

Stencil Fiducial Repair

Electronics Forum | Fri Jul 10 06:20:35 EDT 2009 | kpm135

I have a stencil, on which the fids are no longer black enough for my screen printer to find them. A long time ago at a previous place of employment we had a loctite product to fill these in as a permanent solution. I have since forgotten the part nu

Programming Mydata

Electronics Forum | Fri Nov 06 16:20:59 EST 2009 | 11562knott

I've speced in CircuitCAM at 3 different company's since 1996 and wouldn't use anything else. When we program our Mydata using CAD data within 5 minutes we have a program + a couple more minutes to verify the color visual aids by station. When we rec

Selective Wave soldering machine

Electronics Forum | Tue Oct 20 19:26:10 EDT 2009 | fdbittner

I think machine selection depends upon your application (pitch, volume, changeover from pb to pb free etc...) I have experience with ERSA and Pillarhouse Jades. Both very good in their own right. Pillarhouse are relatively cheap, and quick to chan


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