Electronics Forum | Thu Jan 04 17:26:17 EST 2001 | Cory
We're going to begin conformal coating a few of our assemblies as required by our customer. We're using Kester No clean paste and will use cotton gloves to keep the boards clean while handling. My question is: Do we need to clean the boards prior to
Electronics Forum | Fri Dec 22 12:17:02 EST 2000 | vickij
Hi! Has anyone out there ever tried to use a high-temp and a low-temp solder paste on a double-sided board without using an adhesive? (Populate the bottom side with the high temp paste, reflow, turn it over, then run the top side). I looked in the
Electronics Forum | Fri Dec 15 08:44:17 EST 2000 | DaveJ
I need some advise from the reflow experts. In your experience in nitrogen versus air reflow, what would be the differences in profile parameters? For example, if I profiled a board in nitrogen and achieved (for a particular component) ramps rates un
Electronics Forum | Thu Nov 30 15:18:54 EST 2000 | Rich Z
All, I have a reoccurring issue with the Alpha-Metals WS601, water-soluble paste in that the size 20 nozzle of the auger-type dispenser on my Camalot Gemini II clogs up rather frequently. Every few hours we are having to go in and clear out the nozz
Electronics Forum | Thu Nov 30 14:32:07 EST 2000 | Claude_Couture
Production of 50000, is this per year, per month, per week, what? As for your budget of 80000 Euro, that is no much to go on. For a basic SMT line, you need at least 1 paste printer, 1 placement machine and 1 reflow oven. If you have any through-hole
Electronics Forum | Mon Nov 27 17:23:56 EST 2000 | Dave F
Thanks guys. Following on Cal's point ... we ordered a recently released IPC guideline, seeking closure. 7525 - Stencil Design Guidelines This new document provides guides for the design and fabrication of stencils for solder paste and surface-mou
Electronics Forum | Thu Nov 09 03:19:40 EST 2000 | Chris May
Cristiano, Are your oxidised components now all on boards ? How many and how many terminations ? If you have any that are still to be used, maybe you can get the supplier / customer to replace them, unless of course they are well old. If you have
Electronics Forum | Tue Nov 07 08:39:12 EST 2000 | Steve Geldard
Hi Guys, Ive seen your notes on Wave dwell times, we have been doing lots of test across many styles of wave machines. The most inportant thing to understand is that your dwell time does vary across the wave, it can vary as much as 2 to 5 secs from
Electronics Forum | Wed Nov 01 10:03:42 EST 2000 | Wolfgang Busko
Hi Adam, if your product needs the full width of your wave you won�t have any chance to adjust an angle. For smaller PCB�s you might consider having your carriers made in two pieces. One outer piece to match your transportionsystem and one inner cir
Electronics Forum | Wed Nov 01 12:04:46 EST 2000 | JohnW
Adam, Didn't we do this already?, check the archives, I've discussed rotational carriers before. You can use them fo setting up an designing the pallet but you can't use them for mass prouction, for one your waisting valuable pallet space, for anoth
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