Electronics Forum: poor (Page 1 of 143)

ENIG poor wetting

Electronics Forum | Mon Jul 29 18:59:08 EDT 2002 | davef

Stand-ups are a common problem with 0402. Search the fine SMTnet Archives to get started.

ENIG poor wetting

Electronics Forum | Wed Jul 31 17:35:16 EDT 2002 | davef

* Finally, when soldered by hand, do the problem pads take solder? Yes, the XRF analysis will be interesting.

Palladium poor wetting

Electronics Forum | Thu May 25 08:00:49 EDT 2006 | davef

The warmest spot you measure on the board is the bare laminate. It will be 10*C hotter than a solder connection.

HDMI Connector poor contact

Electronics Forum | Tue Aug 10 05:32:42 EDT 2004 | praveen_madaan@jabil.com

Hi, Has any body experienced the problem of poor cotacts on HDMI connectors. The connectors pins are gold plated and we see some kind of white residue on the gold pins.How to check if this is a flux residue?We are using No Clean flux in wave solderin

poor print definition

Electronics Forum | Mon Feb 20 17:12:54 EST 2006 | mark

Hallo all, I have recently had possibility to work with DEK265. I have met with problem poor print definition (no sharp edges). I used stencil 150 thickness, metal squuegees. I moved than the same stencil, squeegee and parameters to DEK nifinty and

poor print definition

Electronics Forum | Wed Feb 22 16:55:04 EST 2006 | mark

Hi, We are not using vaccum caps. The support pins for both printers is the same ande cover all board (components only on Top side of the PCB). I will check snap-off (right know setting 0.2-04. mm/s). I also suspected poor gasketing but clamps are o

Palladium poor wetting

Electronics Forum | Tue May 23 09:50:37 EDT 2006 | flipit

They work well in silver conductive epoxy in hybrid applications. They are very poor in no clean applications. They don't work that well in OA solder paste either. Used them once in OA paste and in a nitrogen. They looked just fine. Solder to Pd

ENIG poor wetting

Electronics Forum | Tue Jul 30 17:47:50 EDT 2002 | davef

Dewetting: Solder does not adhere to lead or land, caused by: * Poor solderability of lands. * Poor solderability of leads. * Solder paste integrity. * Lead plating integrity. Need more information, please: * What is dewetting [ie, component, pad, e

poor print definition

Electronics Forum | Tue Feb 21 09:19:50 EST 2006 | Chunks

Hi Mark, Not to be condescending, but is your 265 camera in focus? I've seen one instance of this. If it�s not the camera, and you are sure all your other parameters are good, , then poor definition can be from bad snap-off or bad gasketing. Snap

ENIG poor wetting

Electronics Forum | Tue Jul 30 10:04:51 EDT 2002 | dason_c

Dave, I am very interesting to know about the dewetting or pull back, we are currently use the uP78 paste. Will nitrogen, profile setting help to reduce the dewetting. Thank.

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