Electronics Forum | Mon Jul 19 14:58:50 EDT 2004 | mattkehoe
We have a need for expert opinions on a solderability issue. Our company prints and then reflows solder paste with no components in place. It is then washed and flattened with a special flattening machine. Usually, the paste fuses and spreads out
Electronics Forum | Sat Jul 24 11:57:50 EDT 2004 | KEN
I wonder what that would look like? BUILD DCOUMENTATION Paste: OA XYZ-123 SOLDER PASTE. Note: Place refridgerated paste tube in Goldstar Microwave (3rd from the end of the break-room). Press "defrost" "forzen dinner". Do not defrost solder paste
Electronics Forum | Tue Jul 27 22:30:19 EDT 2004 | KEN
Sr. Tech, when you say you have never had a problem, what exactly does that mean? How do you know you have never had a problem directly associated with your solder process? Do you actively measure your defect levels? How do you maintain traceabili
Electronics Forum | Fri Jul 23 09:12:34 EDT 2004 | davef
We have run not AgPd [that we know of]. We can comment on PdNi. [But you're probably have Ni under the AgPd] In general, palladium solution rate is much slower than other sacrificial finish materials that we use for the purpose. The key then is to
Electronics Forum | Thu Aug 12 13:34:03 EDT 2004 | gregoryyork
Yes unfortunately solder resist again, getting boring I know. That green stuff on the boards causes all kinds of problems if not applied correctly. Can't blame the flux (as usual) or the process as he has tried all varients to no avail and therosin s
Electronics Forum | Fri Aug 13 09:49:57 EDT 2004 | russ
What are you measuring? Actual placement speed vs. rated speed? Machine down time? A lot of this depends on your type of enviroment. If you build high mix/low quantity/prototype your numbers will be very low and will vary depending on the complex
Electronics Forum | Tue Aug 17 08:36:01 EDT 2004 | rlackey
CP6/7 feeders are mechanical indexing machines, and the springs, cams etc wear over time leading to misfeeds & increased attrition. You can just strip & repair but especially on the 8x2 feeders the pick up position is critical. John, I'd check with
Electronics Forum | Tue Aug 24 06:29:04 EDT 2004 | johnnybravo
1. quite easy. if you create a smart database for yourself to keep the algorythms easily available, it becomes even easier. 2. reliable, once they've been set up, and "burnt in". in the first couple of weeks they tend to have "child sicknesses". su
Electronics Forum | Wed Aug 25 23:11:40 EDT 2004 | pdeuel
Is your video working if it is then dont worry about it. Cognex runs the video display. Our machine reports cognex not found also. With ours we have a Cognex mounted on the side of the machine I believe it's a cognex 5,000. From what I understand the
Electronics Forum | Tue Aug 24 14:49:21 EDT 2004 | Rush Fan
I was notified that one of our operators took it upon themselves to run a board assembly through our reflow oven multiple times when he discovered what looked like incomplete reflow. Based on this being done, its been asked of me how, if any, has the