Electronics Forum | Thu Dec 07 19:20:28 EST 2006 | ganoi
Most likely there is movement during reflow. How about conduction oven over convection oven for reflow? This is a small PCB with the LED sitting on a Flex-Rigid extension from the PCB. I was thinking if the stencil aperature for the LED was to be cu
Electronics Forum | Fri Dec 08 16:54:42 EST 2006 | flipit
My experience with SMT LED packages is that certain LED package styles tend to float. This floating is caused because the LED is often only terminated on the bottom side of the LED package. Sometimes the LEDs are terminated like a SMT resistor with
Electronics Forum | Mon Dec 18 13:00:34 EST 2006 | realchunks
Hi John, Depending on your board, it could make a difference. Copper finishes might leave that part of the pad exposed, which is a no-no in most places. Where as a HASL board prolly won't care if you pulled the print back. On the other end, over
Electronics Forum | Thu Dec 21 21:37:19 EST 2006 | Jack
Hi Pavel, Real Chunks, Thanks for your valuable inputs..Selecting the correct location for board profiling is critical in determining the solder joint quality. Am I right to say TC wire attachment locations priority should be as below: (1) Thermal
Electronics Forum | Fri Dec 29 15:02:33 EST 2006 | bman
We build quite a few cables ourselves, and we go through a lot of heat shrink labels. Unfortunately, we only use Brady heat shrink labels, so I don't know if I can help much. Are you actually running raw heat shrink through your printer? If so, go
Electronics Forum | Wed Jan 03 11:00:08 EST 2007 | mIKE f
We use the Brady parts, from the PS-094 up thru the PS-500 size, on a Brady 300MVP printer. We also use that printer for marking Brady polyimide labels. The problem is when we try to print on the smaller markers the printing keeps wandering off the
Electronics Forum | Thu Dec 21 15:11:53 EST 2006 | billyd
Hey fellas. Listen, I'm trying to see what the industry as a whole is doing with regard to placement and reflow of the tiny QFN devices. Not the larger ones, but the 4mm or 5mm ones. We struggled a bit with a QFN24, 5mm square. The thermal pad undern
Electronics Forum | Fri Jan 05 07:38:52 EST 2007 | John Burris
I would concur with the above comments. We have used Juki/Zevatech from the 570L model on and run a full complement of 700 series machines. I have a 10 year old 730 machine that still cranks out product every day over two shifts without problems. Yo
Electronics Forum | Wed Jan 17 11:43:14 EST 2007 | stepheniii
The dumbest thing I read was the response to me saying people should not automatically send product to China. I was told not to bury my head in the sand. A lot of companies are being lemmings and taking it for granted it's best to send a product to C
Electronics Forum | Thu Jan 18 08:30:12 EST 2007 | CL,
Good Morning, We also are using Mirtec. We have a total of 5 machines now. 3 in SMT, 1 in RoHS and 1 in Through Hole. We have had incredible luck with these machines and their service is outstanding. I do not have any experiance with the other machi
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