Electronics Forum | Wed Sep 15 11:05:16 EDT 2004 | rlackey
Hi John, It depends on what equipment and resources you have at your disposal - if you have an antique wave with crap adjustment & hand sprayed flux, no debridging/air knife system on a tightly packed board with a multitude of fine pitch connectors
Electronics Forum | Tue Sep 28 05:04:10 EDT 2004 | grayman
In obtaining almost zero defect in solder wave. I would like to suggest the following: First,We must consider changing machine if it is more than 5 years old. second, use the right tools for the right job. Most of the traditional engineers will us
Electronics Forum | Tue Sep 28 08:56:01 EDT 2004 | grayman
"The optimizer has FLUX DISTRIBUTION WINDOW it measures - the amount of flux applied. -Identify uneven distribution of your flux. The FLUX DISTRIBUTION WINDOW permits you to obtain information about your fluxer's performance and repeatability
Electronics Forum | Wed Sep 15 11:33:12 EDT 2004 | sue ph
We are building seven different assemblies that have flex circuitry that go off in four different directions within the panel. The panels are square to facilitate flow through smt & wave solder and depanilized in solder touchup. Currently, we are usi
Electronics Forum | Wed Sep 15 17:31:40 EDT 2004 | GS
Once you verified for correct profile ( consider CTE mismatch) make sure before you remove PBA from fixture, the temperature is almost at room temperature. If by removing PBA from fixture,and the PBA gets a little bent (warped) just in the area where
Electronics Forum | Fri Sep 17 23:19:07 EDT 2004 | KEN
What is the component ball co-planarity spec? I have encountered many ceramic and ASIC devices that specify 7 mil max. If your stencil is 4, 5, 6 mil you WILL eventually have an open joint. You must deposit solder greater than or equal to your cop
Electronics Forum | Thu Sep 16 07:07:34 EDT 2004 | C Lampron
Hello Chris, "It sticks up about 3/8" or so above the surface of the board." Is this over the ridgid portion of the PCB or in between? Is it possible to create a support fixture for printing that has relief that will allow the flex to bow downward i
Electronics Forum | Thu Sep 16 15:28:06 EDT 2004 | rohman23
Actually, it's not even close to 3/8". It's more like 0.075"...not sure what I was smoking last night (I tried to guess on dimensions from my house, and now I have one in front of me). Anyway, to answer your question, the bulge is in between side A
Electronics Forum | Fri Sep 17 09:31:33 EDT 2004 | C Lampron
Hi Chris, It sounds like you may have to go with your idea of a relief cut into the stencil. Are there any components that need to be printed in close proximity? Is this a high volume?I used to work at a flex house and we had a similar situation. We
Electronics Forum | Thu Sep 16 11:42:26 EDT 2004 | Dreamsniper
Hi, Can those who has / have experience with the above X-Ray Machine verify how user friendly this machine is? As well as how this machine really performs. We bought 1 Brand New machine and will arrive two weeks from now here in our factory. WHAT AM
