Electronics Forum | Mon Jul 10 02:54:39 EDT 2017 | dawson
Is there any designer here and recommend the best trace impedance calculator you think? thanks a lot!
Electronics Forum | Thu May 23 11:49:57 EDT 2019 | mmjm_1099
So I am reviewing some assemblies and doing troubleshooting and/or replacement of parts to make it functional. Does anyone know or have a calculation that they use to justify either putting effort to make the assembly work or walk away and scrap it o
Electronics Forum | Fri Oct 04 02:17:30 EDT 2019 | billastle
Try using the Flexible 3 General Vision Algo. The XY Width deviation amount is calculated by using the data close to the minimum width of the component. The theta angle is calculated by the inclination of one side, in X direction of the component.
Electronics Forum | Fri May 21 15:57:08 EDT 2021 | emeto
The thinner the stencil the bigger the variation in terms of percentage. Most probably it was experimentally established, rather than calculated.
Electronics Forum | Thu Oct 07 20:50:38 EDT 1999 | JAX
| | I am interested in seeing how some of you calculate machine utilisation. Currently this was calculated off against the uptime. I really believe there is a better way of doing it i.e if I were to calculate this against machine's capacities. Any fe
Electronics Forum | Wed Jan 16 11:20:52 EST 2002 | bentzen
Hi... We tend to do a lot of footprint calculating for new SMD components. But what about the amount of solder paste on the solder pads. The amount of solder alloy is of cause determined by the stencil aperture size, stencil thickness and the sold
Electronics Forum | Tue Jun 26 12:39:08 EDT 2001 | danial
Our mother company shipped to us a lot of old datecode material and upon running them in the line we experienced non-wetting condition, esplly on the 0402 ( not tombstone ) We have run a dip-and-look test but I guess the method is very subjective as
Electronics Forum | Mon Dec 06 13:54:01 EST 1999 | Andy Yates
Mathematically, measure the component offsets from nominal then calculate the average and the SD of the offsets in x and y. You can then use the following equation to calculate the CpK: CpK = (Process Width - Abs(Average offset)) / (3 * SD offset)
Electronics Forum | Mon Sep 13 16:39:10 EDT 1999 | Earl Moon
| How is cost per placement calculated? | Let me count the ways. Oh, this is not Jennifer to whom I'm talking. No matter, what's your environement? Is it prototype, high mix/low volume, low mix/high volume, etc.? It could some down to simply calcul
Electronics Forum | Tue Aug 06 08:55:07 EDT 2002 | Brandon
How do you calculate downtime of an SMT Line with 5 machines (1 Printer, 3 Pick and Place and 1 Oven)? Let's say that my stencil printer is down, since it is the beginning of my process my whole line is down. But if my 1st pick and place machine is
