Electronics Forum | Tue Jan 22 20:32:08 EST 2002 | davef
Oooo, thanks for the conversion. Being metrically challenged, az a skratchin ma haid thar fer a mite. We do a G-10 160 thou and have similar issues. Now, we�ve talked about barrel fill [ie, slowing belt speed, increasing pre-heat temps, etc] befor
Electronics Forum | Mon Jan 28 19:58:02 EST 2002 | davef
Thanks for cutting me some slack on that metric thang, pardner. ;-) ANALYSIS: What??? The 5DX is useful for something!!! Shut ma mouth!!! [Don't you say a thing. I think I know what you're thinking.] FOAM FLUXERS: Your correct, not having a fo
Electronics Forum | Tue Feb 22 12:02:11 EST 2005 | siverts
The first thing to do, as always with any trouble shooting, is to try to isolate your problem area, then it is much easier to pinpoint and find a solution for the problem. Some simple checks you can do, besides the good suggestions you got from some
Electronics Forum | Fri Sep 24 10:57:18 EDT 1999 | Earl Moon
| Hi Folks: | | We've been having bridging problems on our fine-pitch QFP's, despite thorough inspection of paste height, volume, and placement accuracies....profiles look good also. | | The bridging is happening after coming out of reflow...one la
Electronics Forum | Mon Jun 20 09:12:55 EDT 2005 | davef
There's no easy answer. It depends on: * Thickness and size of the PCB in the array. * Means of separation. * Type of component. SMT components are more sensitive to the forces that need to be applied to separate the PCB. * Type SMT device. Ceram
Electronics Forum | Sun Feb 27 17:06:18 EST 2005 | Darby
This is the profile we came up with on a 1500 to satisfy the parameters suggested by Indium. This was on an FR4 1mm thick 4 layer pcb that I would descrbe as medium density, QFP, SOP, AL-CAP, TANTS, D-PAK, MINI SPRING COIL, SOT and CHIPS were all use
Electronics Forum | Sun Jun 17 05:42:58 EDT 2007 | mika
Hi Shrek, I quote: " Well, whether your parents like it or not, I am an ogre! And guess what, princess Mika? That's not about to change. My background is that I�m a big, good looking guy that is used to gettin� my way with my wit and muscle." I don
Electronics Forum | Sun Dec 05 22:43:27 EST 1999 | dreamsniper
Charley, Though my reply is quite late, it might be a good info for you and i hope that this info could help or could provide you some views. Some companies practice at least 1 board gap, which means the length of the pcb you are currently loading,
Electronics Forum | Fri Apr 03 08:37:10 EST 1998 | Scott Cook
| We are in the process of deciding whether to change a PCB product from a single board to a 3 up panel array. Could you please advise on the most effective removal design, either scoring or snap off, taking into account that material utilisation is
Electronics Forum | Mon Aug 30 06:47:18 EDT 2010 | arjan
We having issues installing the Linear Tech LTM8023. We have different soldering results in our PBfree testruns. The voiding and solderball rate is not stable (random positions and sizes). The pcb's (gold finish)are prebaked, the LGA's are stored in
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