Electronics Forum | Thu Aug 27 05:49:53 EDT 2015 | alexeis
Hi, To calculate both values you need: 1. Theoretical speed of all machines (Printer, SMT, Reflow). This is a basic upper limit value of speed. Use it for calculate a maximal theoretical values as upper limit. For real values, read next. 2. High r
Electronics Forum | Wed Mar 13 09:08:40 EST 2002 | stockley
It is a little bit sad that I know this - be prepared for some confusision - this is not as simple as it might seem. Something tells me that the calculation of the tolerances for the nominal dimensions is a little inconsistent. As I recall the defa
Electronics Forum | Tue Oct 05 16:42:57 EDT 1999 | Dave Pearcy
I would like comments on how the industry handles 0402 parts, regarding identification. Since the parts are too small to be labeled, how can we accurately identify the parts and or values, either before or after assembly? When the boards go to test,
Electronics Forum | Mon Jan 20 19:07:41 EST 2003 | slthomas
Sorry, what I meant was that they don't provide a duration for that liquidus + 20�C value that I've seen bantered about here and on TechNet. They only provide the same stock time above liquidus of 30-90 that they've always used. I'd like to see refe
Electronics Forum | Tue Dec 11 19:48:37 EST 2007 | arun2382
Hi, If I were working with a 75 um thick stencil, Is there a spec. as to what the maximum value allowed on actual solder height measurements? Stencil type: Laser cut and electropolished Solder paste type: Type 4 Sn-Sb Would the measured values va
Electronics Forum | Tue Feb 08 04:27:55 EST 2011 | thomas111
hi, I am a Hardware designer . One of my products is undergoing a Reliability test in which a resistor shows a high value on board from its specified value .However it retains the original value when its cooled under room temperature. The resistor
Electronics Forum | Tue Oct 09 13:07:35 EDT 2012 | ericrr
Yes I wondered that myself for the Juki pick & place machine, then I noticed the default value when doing the "pick tracking" is 5 so I am left thinking why not use that value. So when you introduce a new reel the value comes up "5, feeder position"
Electronics Forum | Thu Mar 23 02:10:59 EDT 2017 | alexeis
Hi, Based on our experience, you can collect X-Ray analysis of solder joints and calculate values of SPC (such as PP/PPK and GR&R). Now, you can find, based on this calculated values, if your production is good or not. Also, this helps you to detect
Electronics Forum | Mon Nov 20 12:36:42 EST 2017 | emeto
Hi, there are several things that I see here. 1. Part is saying misaligned on the top blue bar and missing on the initial list. 2. Part is neither misaligned, neither missing - it is wrong value. 3. How is your part thought? How many inspection wind
Electronics Forum | Mon Jan 07 12:24:09 EST 2002 | Charlie
What in process methods are being used to validate the value of 0402 resistors during first piece inspection?
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