Electronics Forum: what is tombstoning (Page 4 of 67)

what is the max print speed? thanks for your help

Electronics Forum | Wed Oct 31 23:54:16 EDT 2007 | lvzhu

I want to know the max print speed.

what is the max print speed? thanks for your help

Electronics Forum | Thu Nov 01 09:24:46 EDT 2007 | pjc

That is solderpaste dependent. Please check your solderpaste datasheet for print speed range.

what is the required storage temp. for litz wire

Electronics Forum | Thu Jan 12 16:01:40 EST 2006 | Cmiller

The mfg. should be able to tell you. We store ours, for winding transformers, at room temperature. Have had no issues.

what is the cause of humming/vibration of a ballast x'former

Electronics Forum | Thu Mar 02 07:54:07 EST 2006 | davef

Here's some explanations: http://www.psaudio.com/articles/hum.asp http://www.signweb.com/neon/tips/neontip12.html We like the 'don't know the words' one.

what is the max print speed? thanks for your help

Electronics Forum | Thu Nov 01 10:09:18 EDT 2007 | slthomas

Lke Pete C said it's specified by the manufacturer of the paste, but it's also board specific. We print a lot faster on boards with nothing smaller than 50 mil pitch than we would on 16.

preheat slope vs ramp up- what is different?

Electronics Forum | Fri Jul 09 07:14:36 EDT 2010 | cobar

http://www.shanelo.co.za/reflow_profile_adjustment.htm http://www.shanelo.co.za/how_to_profile_a_pcb.htm http://www.shanelo.co.za/SMD%20Assist.htm

preheat slope vs ramp up- what is different?

Electronics Forum | Mon Jul 12 04:52:50 EDT 2010 | cksam

Thanks for the information about the reflow profiling its really useful for me to set up my own profile.

preheat slope vs ramp up- what is different?

Electronics Forum | Mon Jul 12 05:01:30 EDT 2010 | cobar

Please follow the paste suppliers specs for the paste as an indicator.Most people think that if they follow the paste suppliers recommendations to the T it will be a perfect profile but this is not the case.Play around with preheat settings but follo

what is the different between ENIG and Immersion Au

Electronics Forum | Thu Jan 12 02:08:47 EST 2006 | adeline_ko

Hi, What is the different between Electroless Nickel / Immersion Gold (ENIG) and Immersion Au. Are they refer to the same finishing? We has been using the Gold thickness (0.00005 - 0.00013mm) , nicket (0.0025mm) for all Gold finishing brd (Immersio


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