Electronics Forum | Tue Aug 27 13:52:24 EDT 2002 | Mike Konrad
MK, In most cases, if the machine is completely closed-looped (prewash, wash, prerinse, rinse, final rinse etc), then the water should not require changing. As with most inline cleaners, there should be a considerable amount of water loss in the cl
Electronics Forum | Mon Sep 23 18:17:20 EDT 2002 | MikeF
Actually, I have found this thread interesting as well as lively, especially since I may soon be in a similar position. I have thru hole background, but my smt experience is mostly at the prototype level. Of course, I'm in a good position, John Stima
Electronics Forum | Mon Dec 09 18:57:08 EST 2002 | MikeF
Several places I've worked did not allow radios/players of any kind, with or without headphones. The one place that did had a policy that I thought was pretty good - Operators had to be there at least 6 months before they could wear one (that way th
Electronics Forum | Wed Dec 18 12:49:04 EST 2002 | Mike F
I've used rice, too. The trick is to make the bag big enough to hold down the part or parts, but not so big it interferes with the top side heating of the parts around it. I've never actually used lead or steel shot, the heaviest fill material I ever
Electronics Forum | Thu Jan 16 15:16:52 EST 2003 | Mike Konrad
You are comparing apples to oranges. No-clean fluxes, because they are designed not to be cleaned off after reflow, contain very low solids. Normally, no-cleans have a solids content of 2% - 5%. Your basic RMA has a solids content of 15% to 30% (s
Electronics Forum | Tue Jan 28 16:27:43 EST 2003 | MikeF
I agree with most of the other suggestions here, but 90 C for a topside preheat temp seems low to me. I remember aiming for 98 to 104 C for topside temp just before hitting the solder. Boards that had large ground/power planes or a lot of layers I wo
Electronics Forum | Thu Jan 30 15:41:52 EST 2003 | MikeF
The easy part is to determine which parts should be coated. The harder part is making sure the parts that should not be coated do not get coated. I don't even want to think about the amount of labor and materials I've lost due to conformal coat get
Electronics Forum | Wed Feb 26 17:05:42 EST 2003 | davef
Q1: Are the markings on resistors the actual value? A1: Generally, resistor marking indicates the value of the device, where the first two digits are the value and the third digit is the multiplier. Q2: Do AOI machines look for these markings or do
Electronics Forum | Fri Feb 14 17:25:17 EST 2003 | mikeo
Hello, As an Ex-Sanyo engineer I agree with the previous reply. Use EP1 sparingly. You may find that the nozzle sleeves are scored when you remove them. This is from lack of cleaning. You can only buy the sleeve and bearing from sanyo which is a was
Electronics Forum | Tue Mar 04 12:05:27 EST 2003 | ggspook
Thanks Mike Honestly the whole subject of repeatability is Is confusing i.e. I do perform placement tests using glass plate�s Fuji IP3 and Pam on the Fuji chip shooters which calibrate to 3 sigma but I cannot guarantee placement repeatability As y
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