Electronics Forum | Wed Aug 29 16:33:45 EDT 2001 | Mike Konrad
Kerry, Why don't you purchase a decent stencil cleaning system that will not leave behind dry solder paste rather than purchasing a machine to tell you how dirty your stencils are? For less than the cost of a stencil inspection station, one can pur
Electronics Forum | Wed Jan 11 22:47:31 EST 2006 | davef
We didn't intend to light anyone's fur on fire [get anyone's underwear in a knot, roil the waters, have a cow man] about consultants. The Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste
Electronics Forum | Fri Feb 20 14:33:47 EST 1998 | Dave McFadyen
Looks like (so far) we have a concensus. Follow the paste manufacturers guidelines on storage. Normally, refrigeration is required to achieve max shelf life between 3 and 6 months in original closed container. Water-wash pastes are much more active t
Electronics Forum | Mon Mar 22 16:26:10 EST 1999 | Rob Palson
Are there many of you who are soldering through hole parts in your surface mount reflow oven? How repeatable is the process? Do you need to touch up a lot after reflow? We don't do long runs maybe 200, 300 boards max. Can you just screen print t
Electronics Forum | Fri Aug 28 22:15:33 EDT 1998 | Steve Gregory
Chrys wrote: | Sorry to be so long winded. I was out most of the summer and I missed the forum. I promise my next posting will be shorter. Alright Chrys....(hands on hips and tapping foot), just where the heck were you? Did you bother to tell anybo
Electronics Forum | Wed Jun 25 12:20:03 EDT 2003 | russ
This may make it easy, Do you really need soak? Or can you just ramp to reflow. Most pastes that I am aware of perform just as well using the linear ramp as opposed to the ramp/soak /spike. Now, out of curiosity how are you attaching the thermocou
Electronics Forum | Tue Feb 14 14:26:13 EST 2006 | Chunks
Well, you don't want your paste to spoil! It'll give it a bad aftertaste. Actually, we refrig our paste mainly cause our stock room gets rather on the toasty side. Jars left un-friged will cause the metals to sink and leave a puddle of flux on top
Electronics Forum | Wed Jul 06 13:06:22 EDT 2005 | patrickbruneel
Dave, Great to see you more involved in the lead-free. I assume the tests you have done were in lab environment, would it be possible to explain how you measured the area reduction (loss of weight or reduction of diameter/thickness) and how did you
Electronics Forum | Thu Jan 14 21:24:35 EST 1999 | Bernie
Due to an foul up on my part, a circuit board ECO snuck up on me and I have a solder paste stencil that doesn't quite match the board. Two pads are off by about half a pad each. Can the solder paste stencil be modified? If so, what is the technique
Electronics Forum | Wed Jan 20 22:46:44 EST 1999 | Bernie
Thanks for the info. I modified the stencil, ran the boards, and just got a new stencil. Life is good again. Bernie | Due to an foul up on my part, a circuit board ECO snuck up on me and I have a solder paste stencil that doesn't quite match the boa
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