Electronics Forum | Wed Jun 06 10:51:11 EDT 2001 | genny
Since you brought it up, Dave, I did check your math. Looks good to me! :-)
Electronics Forum | Thu Aug 03 10:26:10 EDT 2000 | JohnW
Ok the folk's so how's your math's?? I'm trying to track down an equation for calculating the output of a set of quartz lamps as part of a thermal matching program, anyone got any hints? and Dave...don't do it doesn't count! John
Electronics Forum | Mon May 05 09:53:13 EDT 2003 | k_h
Stencil thickness = 175 microns? If my math is correct, 175u=0.175mil, and if that is english units then it is inches. I'm not understanding this correctly, please clarify for my sake please, are you saying the stencil thickness is 0.000175 inches th
Electronics Forum | Thu Dec 18 19:09:19 EST 2003 | bradlanger
I tried it. I will be making my first stencil for pin and paste and did the calculations with the stencil wizard. The Math came out the same as mine. I will let you know if that stencil works.
Electronics Forum | Tue Oct 04 06:52:28 EDT 2005 | Rob
Am I doing my maths right? 0.005 inches is 0.127mm which is crap for a stencil. Our supplier (laser cut)has an aperture tolerance of 0.005mm (approx. 0.000197 inches).
Electronics Forum | Fri Apr 11 15:30:42 EDT 2008 | hussman
How do you assure your operator follows this math? Our operators can't even pull their pants all the way up or wear their hats on straight.
Electronics Forum | Mon Mar 27 13:39:17 EDT 2023 | erikfriesen
I'm becoming fairly certain this must be software limited. Maybe my math is wrong, but 8 zones * 6000W is 48000W, which would be more like 130A if all were active.
Electronics Forum | Mon Mar 20 10:54:36 EST 2000 | Glenn Robertson
Jack - The last time I checked IBM was specifying a minimum of 4800 cubic mils of paste for each pad. This is required for acceptable reliability, not just to make the connection. There is no way you are getting that volume with a 5 mil stencil
Electronics Forum | Fri Oct 05 01:35:52 EDT 2001 | mirrin
Hi Darren I am currently studying the same course as yourself, basicly if you have an electronic / electrical backround and a good grasp of maths you are laughing...if you send me your timetable of subjects ( I am sure each college does not run to t
Electronics Forum | Mon Oct 15 12:42:36 EDT 2001 | davef
I hate getting "roped" into math stuff, but here I go again ... Area of aperture = volume of paste / stencil thickness = {[5000 mil^3] / 5 mil} = 1000 mil^2 Side of the square aperture = Sqrt of the area = [1000 mil^2]^1/2 = 32 mil Diameter of ape
