Electronics Forum | Wed Sep 18 15:13:17 EDT 2002 | davef
Effects of Gold (Au) on Solder Properties Concentration Range in Weight Percentage w/o Au in Sn63/Pb37 Solder [A Sugarman/Loranger] * 2.0 - 3.0% Spreadability and fluidity of solder reduced (1) * 3.0% Highest acceptable concentration of Au in solder
Electronics Forum | Mon Mar 03 11:28:24 EST 2003 | MA/NY DDave
Hi Normally I wouldn't do it. There are too many proto express shops that supply good results and in 1-3 days. Yet if you need to, you can buy some equipment that is designed just for prototypes. And right now their are huge fire sales. YiEng, MA
Electronics Forum | Tue Jun 17 07:17:09 EDT 2003 | James
The main problem I am having is getting the Rising slope 1-3 degrees. If I slow the conveyor down then I have too long of a reflow and if I speed it up then my ramp rate is too high. I was not sure if I need my first zones at a low temp or higher t
Electronics Forum | Wed Jun 08 10:32:27 EDT 2005 | rlackey
We ran an MVT 1820 Supra against a VT-Win-II for around 40K high density boards. One machine was 1/3 of the price of the other, more accurate in production, faster, and could handle larger boards. Guess which won? Fortunately we were able to loo
Electronics Forum | Wed Jul 18 11:49:59 EDT 2007 | davef
The auditor may be using "verify" in an ESD Program context. See ANSI/ESD S20.20 [1999], 6.1.3, Compliance Verification Plan. It gives one definition of what the auditor may be seeking. For more on verification programs, look here: http://www.protek
Electronics Forum | Wed Nov 07 01:55:43 EST 2007 | Michael Konrad
Hi Rafael, You just missed three shows (two in Chicago and one in Orlando). Next major US show is APEX (April 1 - 3) in Las Vegas. If you want to see all the players sooner, Productronica is next week in Munich Germany. Mike Konrad Aqueous Techno
Electronics Forum | Wed Feb 20 08:17:32 EST 2008 | ck_the_flip
Steve, KIC does. The new KIC2000 has built in dwell time sensors. You can buy KIC's wavesurfer option (like MOLE's waverider), or you can engineer a custom pallet for 1/3 the price. I made a custom pallet and took advantage of the KIC's automatic
Electronics Forum | Tue Apr 23 15:35:45 EDT 2013 | dyoungquist
Check out IPC-A-600. Revision G (July 2004) section 3.2.3 (surface) and section 3.2.4 (internal) give min/max thicknesses for various weight copper. The min also changes depending on what class (1-3) standard you are working to.
Electronics Forum | Tue Jul 19 03:06:42 EDT 2016 | ishwarsingh1
Upside down placement of a crystal oscillator is acceptable or not ?? As per IPC 8.3.2.9.2 Rectangular or Square End Chip Components – 1, 3 or 5 Side Terminations.I am not sure whether is applicable for crystal oscillator or not . Your answer wo
Electronics Forum | Fri Mar 08 05:44:40 EST 2019 | bukas
are you sure #1 and #6 are interchangeable? if I remember correctly there is a catch with those motors, like there are 2 groups, group 1 being #1 #3 #5 and group 2 being #2 #4 and #6. maybe try getting it back and swapping cables at drivers for head
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