Electronics Forum | Thu Dec 15 16:38:50 EST 2011 | davef
Sixth, make sure you have a feedback loop. Through the course of fixing problems, make sure the "fix" is incorporated back into program generation. For example, if a part definition is made or fixed, make sure the new definition or fixed part defin
Electronics Forum | Mon Apr 21 16:38:45 EDT 2014 | barryg
Hello all. We have been having some problems soldering to what we believe is a nickel plated spring steel battery terminal to a PCB. We have tried scrapping , then tinning, dipping and still have problems. Are there any special fluxes or pre-treats t
Electronics Forum | Fri Dec 22 16:38:13 EST 2017 | khs_robot
HI I will buy a samsung CP40CV machine It will be used in manufacturing LED bulbs, I will use LED size 2835. Please advise me, is this machine good and easy to use? What are the common problems of this machine? What is the appropriate price for the m
Electronics Forum | Wed Feb 11 16:38:20 EST 2015 | barryg
I was curious what others in pcb assembly are doing as far as profiling. Is profiling an important part of the smt process? Should every board type processed be profiled to determine optimum oven temps per paste recommendations.Is it ok to assume tha
Electronics Forum | Wed Feb 14 16:38:00 EST 2018 | cbart
i have seen that happen when the wrong process was utilized! your boards looked like they were v-scored and someone broke them apart, proper method would be to use a scoring separation machine.. pizza cutter. this would prevent this. its not a good i
Electronics Forum | Wed Feb 13 16:38:56 EST 2019 | spitkis2
BTW - in our testing on housings with Sn42Bi57 paste, it took 240 seconds to reach 140C on an aluminum module with a mass of 0.75 lbs. This was from ambient and only using machine preheating before having the top heater turn on to peak at 162C. Sa
Electronics Forum | Thu Mar 10 21:16:38 EST 2022 | proceng1
How far from apertures is the label supposed to go? I'd say 1 inch is plenty. 3/4 inch might be plenty also. Do you have the ability to measure paste height? I'd say place the label on one board and print two. Is there an appreciable differenc
Electronics Forum | Mon Feb 21 16:38:45 EST 2000 | K. Ckak
RE :PCB/Assembly/EMS Industry Forecast for (99)/2K and beyond. Hi Folks, I would like to get PCB//Assembly//EMS Industry Forecast for 99/2K and next couple of years. Is there any web site that I could get help from? I require this info broken down
Electronics Forum | Mon Feb 21 16:38:45 EST 2000 | K. Ckak
RE :PCB/Assembly/EMS Industry Forecast for (99)/2K and beyond. Hi Folks, I would like to get PCB//Assembly//EMS Industry Forecast for 99/2K and next couple of years. Is there any web site that I could get help from? I require this info broken down
Electronics Forum | Thu Oct 26 16:38:08 EDT 2000 | Philip A. Reyes
Hi Sir Charles! Good Day! I hope you can help me about my queries. 1. What is the acceptable misregistration or misalignment of balls after reflow soldering of PBGA module on the PCB? 2. Is there any criteria for solder ball defect or solder beads
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