Electronics Forum | Tue Apr 06 11:17:01 EDT 2004 | ccl
hi, i encounter gold surface contam issue on wire bonding ring after prebake at 150 C for 3 hrs, tis cause wire bonding non stick issue. the contam seem begin at the solder mask area toward center of the bonding ring, but is not consistance.
Electronics Forum | Wed Apr 07 22:15:31 EDT 2004 | davef
We're not familiar with the AUG5 from Taiyo. [It doesn't show on their US site.] Is it liquid photoimageable? Printed solder masks are more likely to bleed. But you wouldn't have any solderability with bleed. Your plating seems acceptable [if th
Electronics Forum | Mon Oct 11 13:05:51 EDT 1999 | Dave F
| | Folk's, | | | | I'm just tying up some loose end's on my Master's Thesis on solderballing @ wave soldering and the effect the topography of the mask / PCB has on it. | | I was wanting to do a straw poll on you guy's as to the type of resist's yo
Electronics Forum | Tue Dec 29 17:42:27 EST 1998 | Dave F
| Can anyone recommend a solder stop that can be applied by our PCB supplier. Our current material form Tamura Kaken is causing problems. | | The material should be capable of withstanding 1 Surface mount IR reflow cycle and 1 wave solder cycle. | W
Electronics Forum | Tue Mar 21 21:03:55 EST 2006 | davef
1 Chatter about mask opening � No BIG problems with these statements. It�s just that you may need to tailor your reflow recipe to minimize these escapees. 2 Stencil design - Any area ratio below 0.66 is going to very challenging to print, as you ca
Electronics Forum | Fri Oct 30 18:08:59 EST 1998 | Dave F
| I finally got my problem figured out on the bridging, the | only thing I'm finding is that I notice some litlte solder balls on the bottom of the board. Is that normal? Is that why I'm getting bridges? Has anyone came across this problem and pass t
Electronics Forum | Mon Jun 21 14:55:27 EDT 1999 | JohnW
| | Does anyone know where I can find a list of things to do to when troubleshooting issues during the wave solder process? | | | | for example: | | | | Solder Bridge | | 1.verify amount of flux been aplied. | | 2.verify turbulance on your solder w
Electronics Forum | Thu Jun 17 15:18:54 EDT 1999 | Earl Moon
| Does anyone know where I can find a list of things to do to when troubleshooting issues during the wave solder process? | | for example: | | Solder Bridge | 1.verify amount of flux been aplied. | 2.verify turbulance on your solder wave. | 3.etc.
Electronics Forum | Thu Jun 17 19:52:57 EDT 1999 | Tony
| | Does anyone know where I can find a list of things to do to when troubleshooting issues during the wave solder process? | | | | for example: | | | | Solder Bridge | | 1.verify amount of flux been aplied. | | 2.verify turbulance on your solder w
Electronics Forum | Thu Jun 17 20:35:51 EDT 1999 | Earl Moon
| | | Does anyone know where I can find a list of things to do to when troubleshooting issues during the wave solder process? | | | | | | for example: | | | | | | Solder Bridge | | | 1.verify amount of flux been aplied. | | | 2.verify turbulance on
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