Electronics Forum | Thu Feb 03 07:39:24 EST 2005 | davef
The component orientation was just for the calculation. It has no affect on what you're seeing. As an alternate explanation, it's possible that difference in temperature is causing the board to flex in the z-direction [as you say, it may not be f
Electronics Forum | Sat Apr 30 10:37:25 EDT 2005 | Daniel
I think he did mentioned the board size in the inital thread: "265mm x 207mm pcb", but maybe it was not clear written. I have a question about rework and pre-heat: is it necessary to have the pre-heater to cover the whole board size, even if you onl
Electronics Forum | Thu May 26 13:53:45 EDT 2005 | gregp
I wouldn't worry about patents except for those types of feeders which have patents such as the MyData Agilis feeders. I would worry about cost of tooling for $tampings. Long time for ROI there. Also pay attention to the burr side and shear side of
Electronics Forum | Tue Nov 15 03:27:46 EST 2005 | Base
Hey Carsten, Couple of questions to get the picture clear about the type of machine you're looking for: - what's the most demanding package you'll be placing? (fine-pitch, BGA, large connectors, etc...) - how much feederbarspace do you hink you'll n
Electronics Forum | Wed Dec 07 14:55:14 EST 2005 | Samir Nagaheenanajar
Here in Rihad, I am in the midst of Pb-Free implementation, and most of our paste manufacturers have advised that with the higher peak temperatures, you need to retain the activators as long as possible. I have changed our profiles to a more gradual
Electronics Forum | Tue Feb 21 21:17:41 EST 2006 | Cal Kolokoy
M, The paste height is what you establish it as. You're probably using a laser measurement system, and these depend on where your reference datum is. Some will measure from a silkscreen, a trace, or solder mask. These add height, not to mention H
Electronics Forum | Wed Mar 15 09:43:16 EST 2006 | ratsalad
About a year ago we switched from another vender to Kester 256HA paste. As we've switched assemblies from the old paste to our Kester paste, we've seen a need to increase the frequency of our oven cleanings. It has been very noticeable. After only
Electronics Forum | Tue Apr 18 19:48:08 EDT 2006 | davef
There is no standard, nor should there be [because the IPC standards should be aimed at describing results, not the path used to reach the results]. So, your printer equipment supplier recommendations are a good starting point. Your "35-46 lbs-in"
Electronics Forum | Tue May 02 05:59:28 EDT 2006 | davef
We agree with Ken's points about off contact / screen versus stencil, but this DHolt is talking stencil [regardless of what is typed about screens]. Comments are: * On "smears under the stencil": smearing happens. It makes us wonder about the frequ
Electronics Forum | Thu Jul 20 09:21:24 EDT 2006 | fabione
My actual line(europlacer928+europlacer400)(7500-10000c/h)it is too much slow in the change of production(3 change to day) My choice is mydata as principal line (hight changes low volume) and old europlacer for my 8 product with max volume. or Siemen
