Electronics Forum | Tue May 21 09:06:03 EDT 2013 | hussman
Delta-T in reflow generally means 2 things - difference in temperature on a product or difference in temperature of your oven. Delta-T on a product is what are your hottest and coolest areas on the board. Larger parts toward the middle of the boar
Electronics Forum | Sun Sep 29 01:28:42 EDT 2013 | tonnyneoden
This is Tonny from China ,I am a salesman at NEODEN TECH CO.,LTD . We are a factory specializing in the manufacture and export of desktop automatic PICK AND PLACE MACHINE (SMT MACHINE) for more than four years. We are the leaders in this technology i
Electronics Forum | Tue Jan 21 13:51:19 EST 2014 | rgduval
Armando, Is the problem in the same spot on the board with every run? If so, there might be something about that particular location that is part of the cause (ie. ground or power plane connection). It sounds like you're seeing blow holes, or insu
Electronics Forum | Tue Oct 28 17:15:46 EDT 2014 | grayboard
Hello, I am looking into the use of a Samtec SEAM-50-02.0-L-10-2-A-GP-K-TR on a board. Is anyone around who has experience with this component? Specifically, we are looking for design advice for stenciling and soldering. The component is a sold
Electronics Forum | Thu Feb 05 02:30:00 EST 2015 | sarason
We were using TL1240Y Tack switches for 2 layered > PCB and posted those switches by hand. Now > planning to re-spin PCA where we recommend that > part to be added on SMT process. So looking for a > better and opt switch with same specs. Please
Electronics Forum | Sun Feb 22 15:46:09 EST 2015 | slave2anubis
Hi, my name is Dacian, and i run a mobile phone repair shop in Timisoara, Romania. Lately we decided to do more advance motherboard repair jobs, and a big problem that we have is, cleaning the board after we remove the chips. We repair manly iPhone,
Electronics Forum | Tue May 05 18:37:08 EDT 2015 | visionbot
Hi! I am Alexandru and I am a maker. Right now I am trying to build VisionBot which is a Surface Mount Technology assembly shooter that can be used to place SMD chips onto Printed Circuit Boards for PCBA. Practically the Vision Bot machine will ena
Electronics Forum | Thu Aug 27 11:18:05 EDT 2015 | dyoungquist
From your description I am assuming you are doing double sided reflow and parts are dropping off the bottom side when the board is run through the reflow oven the second time. A few ideas to try: 1) Are the parts that are dropping off heavier parts
Electronics Forum | Mon Aug 31 15:21:04 EDT 2015 | zombee
Dear Users! I have a Topaz pick&place machine, but the conveyor motor is not working. 1st test - production: Start production in "operation" menu: if I put the PCB the entrace of machine, the assembly head-bank picks up the first 8 components (prec
Electronics Forum | Sat Sep 26 03:21:58 EDT 2015 | aemery
Mervin, Love these machines, Speedline built about 3500 of them so I have lots to fix. Most issues come down to incorrect use or poor adjustment and alignment. Your description is a little vague, you didn't mention which direction the prints are of
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