Electronics Forum | Sun May 30 22:59:29 EDT 2004 | snmsmt
I assume your talking about the forward voltage (Vf) of the LED during operation? (Probably not the correct forum for this question but anyway...) My understanding is that 'Vf' is measured during the LED's operation at a forward current ('If') of 20
Electronics Forum | Tue Sep 07 06:24:07 EDT 1999 | Steve Cheung
We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you! Our proble
Electronics Forum | Tue Mar 04 09:12:35 EST 2008 | davef
Q1. What would you recommend for the best practice or comparison? A1. We'd go with dip & look. It's easy and cheap, requires no advanced degrees in measurology. Have you reviewed "J-STD-002B - Solderability Tests for Component Leads, Terminations, Lu
Electronics Forum | Thu Oct 26 13:56:08 EDT 2000 | ptvianc
Hello: Pre-baking laminates should only be performed:(1) to meet contractual agreements or (2) in response to an actual defect that can be traced to PWB water absortion. Besides the fact that a pre-bake is an enormous process "bottleneck," it also
Electronics Forum | Thu Jun 30 18:40:06 EDT 2005 | KEN
What your asking has many variables. 1. Material: SS vs. Cast Iron. Iron is thicker. Which SS? 316, 316L 2. Pump speeds, turbulence, hours of operation directly affect equipment life. 3. Things like scraping the pots, the tunnels, impelle
Electronics Forum | Wed May 17 16:02:53 EDT 2000 | Mark J. Braska
Is there any data on the total cost of labeling PC boards. Included in this cost would be the labels, ribbons,printers & maintenance,software, and engineering & operator expenses(fully burdened). I am searching for an independant analysis of the co
Electronics Forum | Fri Apr 14 10:07:18 EDT 2006 | vikkaraja
Have you checked the table itself. It seen it where either a PCB lifter or adjustble rail brake is operating properly.
Electronics Forum | Wed Oct 23 21:45:17 EDT 2019 | ixqprint
100% appearance does not mean that programming is correct, can only say that the general direction is correct, the specific small details should be improved during the operation.
Electronics Forum | Thu Oct 27 05:51:17 EDT 2005 | pavel_murtishev
Good day, Search the net with "Solder paste softener", or check the links below: *Malcom http://www.malcomtech.com/products_sps.html *Japan UNIX http://www.japanunix.co.jp/ju_en/products/UM-103.html *Genitec http://www.genitec.com.tw/gam-60-e.htm
Electronics Forum | Tue Aug 31 10:52:19 EDT 1999 | Andreas Foehrenbach
I'm in univerity research on SMT assembly systems. Especialy Simulation and Optimisation using OR-Methods. We developed flexible simulation models of various assembly-machines and use them for performance estimation (Components per hour) under differ
