Electronics Forum | Thu May 13 21:24:16 EDT 2010 | davef
Jacki: That's exactly what we need to know, so that we can start slogging through this. [See we don't do well with broad, generalized questions. We don't have time to write dissertations. This is a task-oriented group.] Let's focus further: * Is
Electronics Forum | Tue May 04 12:43:55 EDT 2010 | rgduval
Good point on the shop air. Shop air can also generate a tremendous amount of ESD. There are special nozzles you can get to minimize it. We use our shop air mostly for blowing out connectors, and larger components that have a history of trapping w
Electronics Forum | Thu May 06 11:37:48 EDT 2010 | davef
There is no specification. Shear tests are very material / operator dependent. BALL SHEAR TESTING OF RAW BGA DEVICES: A total of 3 devices were subjected to ball shear testing. Results of the testing indicated shear values in the range of 0.7-1.25
Electronics Forum | Wed May 12 11:55:08 EDT 2010 | pbarton
We are using VPS, but only for high mass assemblies. As the other respondent has suggested if the mass of the assemblies is very low then difficult to control temp. rise times to within the normally accepted parameters. The Rehm equipment does seem
Electronics Forum | Wed May 12 17:54:22 EDT 2010 | jlawson
Just a note, on fixed galden machines yes the way they compensate for rise time is as the previous post suggested, change power and also stage the lowering of the PCB into the vapor cushion ie not the main one but further up in the tank. The disadvan
Electronics Forum | Tue May 11 10:57:35 EDT 2010 | ehess
Having a problem where i have no drive on any axis. Machine powers up, but won't reset. I have 24VDC from PS6 and PS1, located in the upper drawer. I do not have 12VDC @ PS2 in lower drawer. troubleshooting guide says to check DPR in/out, which I
Electronics Forum | Thu Jun 10 16:58:40 EDT 2010 | daxman
I've worked at several companies that have used Smart Sonic ultrasonic cleaners. About a year ago, we purchased the Smart Sonic 1550 and Enviroguard. The Enviroguard produces DI water for rinsing and also handles the solder waste. Also, Smart Sonic h
Electronics Forum | Sat May 29 02:26:14 EDT 2010 | vinitverma
If you want to vary the voltage to control the motor speed, then this is not the correct way. Though you can use LM317 for reducing the votage (using a 5K potentiometer) which will sure reduce the speed but it'll reduce the torque tremendously. For D
Electronics Forum | Wed Jul 07 10:17:33 EDT 2010 | flipit
We have this problem only with one manufacturer of LEDs. Avago LEDs give us the problems where SunLED and KingBright do not. We put a magnet under the embossed cover tape. The magnet is mounted to the feeder. Holds the part in the tape pocket. L
Electronics Forum | Sun May 23 21:33:42 EDT 2010 | ashley
"The part is picked up and head goes to it's xy location" Hello mickd, I believe VP had passed but machine is confused how to compensate & place. OS error normally associate with a faulty VME card. Please check the following :- VM1152 VM1730 VM193
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