Electronics Forum: longer (Page 1 of 113)

Time above liquidus

Electronics Forum | Fri May 18 12:09:20 EDT 2007 | ed_faranda

I have been TAL around 45 to 90 seconds. I prefer the longer TAL so, I set my profiles around 80 seconds. In the old days (Before RoSH), the longer times would help with wetting. But, since Lead-Free, well. We all know the story about wetting now

AOI X-ray

Electronics Forum | Fri Aug 01 17:58:37 EDT 2003 | Brian W.

Keep in mind that Photon Dynamics is no longer in the X-Ray AOI business. They are no longer supporting equipment in the field. A number of their employees have formed small companies to provide support for Photon Dynamics equipment in the field.

screen blade length

Electronics Forum | Tue Sep 08 15:04:36 EDT 2009 | dekhead

Important mainly for consistency of pressure across the entire board length... But also quite abusive of stencils to use longer blades. Especially since (most people) when using the longer blades will bump the pressure up even higher to minimise th

PCB Delamination

Electronics Forum | Fri Jun 01 04:05:25 EDT 2012 | grahamcooper22

If you think the root cause is excess moisture in the pcb then try to bake it for longer. Even longer then the manufacturers recommendation. It takes a long time for excess moisture to come out of a pcb. Try 24 hours , then 36 hours and see if there

Chinese Wave Solder Machines

Electronics Forum | Tue Nov 21 20:21:11 EST 2006 | billwestiet

Most machines for lead free have adjustable conveyor angles (4 to 8 degrees). In the good ole days with lead, we typically ran at about 6 degrees. Often we see closer to 4 degrees with lead free. This is very common, and provides longer immersion

Where's Earl Moon ?

Electronics Forum | Sun May 07 19:34:21 EDT 2000 | armin

I noticed that I no longer see Earl's name in the Thread, where's he gone? just curious guys...

Closing Dead Threads

Electronics Forum | Mon Apr 02 20:21:50 EDT 2001 | davef

When do threads become inactive so that fine people can no longer post to them?

Reflow PBGA

Electronics Forum | Tue Jun 25 16:02:03 EDT 2002 | dason_c

Is the paste fresh or not or exposed to the floor for a longer time. What kind of the paste which you are using?

HASL Fiducial Disposal

Electronics Forum | Wed Jul 31 17:34:00 EDT 2002 | davef

No, but then again we do not stock boards longer than 6 months

splicing conveyor belting

Electronics Forum | Tue Oct 07 12:40:57 EDT 2003 | ssnow

OEM no longer in existence. hard to find exact match. belt is flat and green. used for PCB transport.

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