24870 used results

Electronics Forum: used (Page 558 of 2487)

MyData TM8FC magazines

Electronics Forum | Mon Jun 26 09:46:29 EDT 2006 | jem

My company also uses the TM8C (all feeders) with the same problem as Paul. The 0402's do exactly the same as he desribes.The SMT operators are correcting the placement data all the time when using 0402 but to no avail. Chris What do you mean by the

Low Flux Residue Solder Paste

Electronics Forum | Tue Jun 20 10:26:07 EDT 2006 | samir

Chunks, I used to work in power electronics, and we had this design engineer who used to "blow moisture" on the high-impedance circuit and test for cleanliness. We were water washing in a OA-Water Soluble environment. He was convinced that there w

Oop's Pb BGA's in a RoHS process?

Electronics Forum | Mon Jun 19 05:11:08 EDT 2006 | WEEEsted

Hi, In our setup what we usually avoid is to use RoHS BGA on Pb process. But we use sometimes Pb transistor(4~6pins) on RoHS process, no BGA yet have been reported. Its really difficult to say about reability unless you start running some functional

Wire to board soldering

Electronics Forum | Tue Jun 20 08:30:31 EDT 2006 | dougs

It's hand solder, the wires are free issued, what i'm finding is that if we keep the heat and push enough solder into the joint that the component side wets there is that much solder moved up the wire that it goes solid. this is no good as the custo

AOI Algorythms

Electronics Forum | Wed Jun 21 03:45:53 EDT 2006 | emeto

Hello SMT netters, Can anyone help me with AOI algorythms. I have to find out the differences between algorythms for recognition(black and white, grayscale, matching, golden board.....). I know all of you are using different type of AOI machines. C

Nitrogen purity requirments

Electronics Forum | Fri Jun 30 09:03:09 EDT 2006 | Frank

The manufacterer of our machine recommends 99.999%. At their presentation before we purchased the machine they showed an example of using different purity levels. When they whiched the supply to 99.99 and then to 99.95 you can visibly see the diffe

MYData placement variations

Electronics Forum | Fri Jul 07 13:20:37 EDT 2006 | fredericksr

I've seen the tool head move components if the component list isn't grouped according to size. If you group your taller components higher than the others then they will be placed later. I used to see a lot of shifting with large keyhole vias used

Solder beads and wave soldering

Electronics Forum | Thu Jul 06 03:03:56 EDT 2006 | ronalds

Thank you all for your input. The MF300S Multicore flux is rated for lead free. There is not much dross or contamination. We are using nitrogen. I've tested the boards with the curing test of IPC-TM-650. I think you're all right about the preheat.

Stencil cleaners.

Electronics Forum | Mon Jul 17 13:37:35 EDT 2006 | carln

Here is something I copied from Circuitnet.com. This appears to answer your question and then some... http://www.circuitnet.com/experts/ Ask the Experts Jul 17, 2006 What type of cleaner method is preferred for lead-free stencils? What type of s

Stencil cleaners.

Electronics Forum | Sun Sep 17 21:05:24 EDT 2006 | kenneth_lee

Hi, CK, I am kenneth from SMT resources Pte Ltd. Our company sell Steacil Cleaner CONTEK - CT-2000,(Full preumatic). Advantages: -More safety compare with using Electric. -Very easy to use. -Lower prices with high performance. -Able to clean stenc

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