Electronics Forum | Tue Mar 29 03:03:42 EDT 2016 | wesleyintelli
Our MPM UP100 is not slowing the pcb carriage as it is brought under the stencil. The result is that the carriage jolts the machine heavily when it is fully loaded. The hall effect vane sensor half way along the rear rail is working correctly. The le
Electronics Forum | Thu Feb 10 07:46:37 EST 2011 | sigmaprint
Hi, SigmaPrint is the authorised supplier for service and genuine spare parts for the complete range of SMTech equipment aquired by Speedline in 1999. Servicing and parts supply are handled by ex SMTech customer support engineers who have an extens
Electronics Forum | Tue Apr 02 18:32:22 EDT 2019 | slthomas
DISCLAIMER: I've forgotten a lot more than I remember! It does sound like the dump valve shuttle is stuck and it's bleeding air. It doesn't sound like a stuck feeder because (correct me if I'm wrong) I *think* there are hall effect switches on tho
Electronics Forum | Tue Jun 01 10:11:00 EDT 2004 | davef
Intermetallic growth is a diffusion process, the thickness of the intermetallic is given by: z^2 = (Do)(t)exp[-Q/RT] Where Do (m2 s-1) is the diffusion coefficient, T(�K) is the temperature, Q (J mol-1) is the activation energy and R (8.314 J mo
Electronics Forum | Thu Dec 08 07:55:16 EST 2005 | davef
Your understanding of the situation is correct. In both cases, you solder to the nickel. The gold [Au] protects the nickel from oxidation. When soldering, the gold moves into solution in the solder and forms an intermetallic compound [IMC] with th
Electronics Forum | Sun Apr 25 04:12:34 EDT 1999 | Earl Moon
| At Sanders (Military manufacturer), we have only started using plastic parts within the past few years. After being tasked with reviewing the new J-Std-033, it became obvious to me our process for controlling device exposure is weak. We build very
Electronics Forum | Tue Jan 05 14:37:18 EST 1999 | Dave f
| I would like to know if it exist a croos reference book for marking code on smt device? | I'm fixing a unit now and try to know what are the following devices: | The look like transistors and are mark like that "8A" |
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