Electronics Forum | Wed Mar 14 20:06:54 EDT 2007 | vshan
Hi All i need some help here, currently experiencing connector leg shifted due to solder paste shifted from pad ~0.3mm. I did adjusted the reverse/forward X, Y and titah but still shifted. Product : flex circuit with 28 connector on the panel. Each
Electronics Forum | Thu Mar 15 09:28:19 EDT 2007 | jseagle
I have seen this when the fiducials are not spaced far enough in the X and Y.
Electronics Forum | Thu Mar 15 19:48:10 EDT 2007 | vshan
how far do you think it should be rgd vshan
Electronics Forum | Fri Mar 16 23:38:36 EDT 2007 | mika
I don't understand so please explain in more detail. You say ~0.3mm shifted. In what direction is the paste shifted? is it shifted the very same directions on all panels? Only on this product or even with regular pcb:s? What is the size of the panel
Electronics Forum | Wed Sep 19 11:50:02 EDT 2007 | stepheniii
nevermind misread the post. But if the silkscreen is too thick, can you switch to another PCB manufacturer?
Electronics Forum | Wed Sep 19 21:10:16 EDT 2007 | wailiang81
Yupe, if condition keep worst, most probably will re-allocate the PCB manufacturer.
Electronics Forum | Wed Sep 19 21:13:24 EDT 2007 | wailiang81
By vision. Could you elaborate the meaning for "the advertised repeatability for your machine"?
Electronics Forum | Mon Mar 19 07:50:59 EDT 2007 | realchunks
Hi Vshan, If 3 legs are on the pads and 3 legs are off the pads, AND your paste is the same, I'd say your boards are made wrong.
Electronics Forum | Wed Sep 19 09:48:38 EDT 2007 | slthomas
In addition to what DaveF said, I'd like to know if there are other parts on this pcb, and if the paste for those parts was printed accurately or not.
Electronics Forum | Wed Sep 19 13:38:43 EDT 2007 | russ
What is your alignment method for printing? Vision? Mechanical? What is the advertised repeatability for your machine? Russ
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