Electronics Forum | Mon Aug 04 11:31:42 EDT 2003 | pbarton
The masking boots can be obtained from Sinclair and Rush - their web address is http://www.sinclair-rush.com Regarding the type of conformal coat material you require that is down to the service environment/product life expectancy etc. etc. What do
Electronics Forum | Mon Aug 04 13:54:01 EDT 2003 | A
Conformal Coating Equipment Vendors for selective conformal coating of PCBAs: http://www.asymtek.com/products/sc_105_205.htm http://www.pva.net/ http://www.ultraspray.com/spraycoating/index.htm
Electronics Forum | Mon Aug 04 15:06:24 EDT 2003 | swagner
Don't forget to look into Nordson's coating equipment, it's more expensive than the other's but you get what you pay for.
Electronics Forum | Thu Jul 25 15:00:37 EDT 2002 | Claude_Couture
1: I use the fiducial mark as bad board mark. 2: First get the X sensor installed on the machine, then use method 1. 3: other methods: group boards according to which unit is X out. Then edit NC program to skip corresponding X out.
Electronics Forum | Fri Jul 26 12:18:43 EDT 2002 | dougt
I'm told that the Contact Systems machines we have will are set up so that if you put a sticker over the fiducial it will skip that board on the panel. I think the machine might prompt the operator that it can't find the fiducial and the operator te
Electronics Forum | Mon Jul 29 17:00:27 EDT 2002 | dsorg
We're a contract manufacturer, so we are at the mercy of our customers sometimes. We strongly encourage fiducials on the board instead of the rails, but sometimes the customer doesn't want to spend the time or money to do it.
Electronics Forum | Wed Jul 31 09:20:47 EDT 2002 | larryk
Dave, I'm assuming your unsoldered fids are exposed copper. Do you have any issues with machine vision due to the various color changes the copper goes through as it oxidies? Larry
Electronics Forum | Thu Jul 25 18:49:12 EDT 2002 | Dreamsniper
Has anyone compared the 2 machines performance? Which one has the edge? What are their disadvantages and the common problems they give the users? thanks in advance...
Electronics Forum | Fri Jul 26 18:28:51 EDT 2002 | blnorman
Actually this is for an automotive instrument cluster. From what I've been told back in the good old days we switched fluxes and after the car sat in the sun (and heat) a haze developed on the inside of the panel that was attributed to the flux.
Electronics Forum | Sun Jul 28 15:20:08 EDT 2002 | davef
'Good Old Days', hummm, sounds dangerous from the start. Dunno, Bill. While they're corrosion oriented, but have you considered: * ASTM D2247, Procedure for Humidity Testing * ASTM B117, Procedure for Salt Spray Testing (Fog Testing)
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