Electronics Forum | Wed Dec 08 09:53:23 EST 2010 | fönsi
Hello Because of the cold weather, we had some troubles with drying out of printed solder paste on the pcb's. The relative humidity in the air declined below of 20%. We have a process window of store the printed board for maximum 24 hours, but with
Electronics Forum | Mon Jun 06 14:21:14 EDT 2011 | rwyman
A reputable supplier will identify the level CLEARLY on the packaging and in the datasheet as well. If they are KNOWN to be MSDs, I'd be suspicious if they aren't marked. Or, they may not be MSDs. I don't think it's required to ID them as "M1" if n
Electronics Forum | Mon Jul 16 16:28:18 EDT 2012 | mikesewell
I'm somewhat frazzled by this one, not being too familiar with the MYs. Head is clean, tried different tools, same tool# from another MY, and have run the Centering Base Level Calibration to no avail. The component heights are correct and the par
Electronics Forum | Fri Sep 28 01:47:46 EDT 2018 | netvicher123
The followings may be the factors from your description: 1. chain speed and motor speed? 2. is the tin content even? (more or less on one side, or thickness of steel mesh, size of opening) 3. Is there any exception in the pin? 4. is there any level
Electronics Forum | Thu Dec 12 21:44:15 EST 2019 | davef
I don't know what a "mass defect" is. Defects are within AQL [acceptable quality levels] or they aren't. I start at General Inspection Level 2 in the AQL Chart ANSI/ASQ STANDARD Z1.4-2006 and a sampling plan ANSI/ASQ Z1.4 Adjust the Level for Budge
Electronics Forum | Thu May 24 10:51:49 EDT 2001 | Frang
What is the guideline to determine the require level of PPM Oxygen in Nitrogen reflow.
Electronics Forum | Thu Jun 21 02:06:12 EDT 2001 | Darby
Dave, As one who delights in all manifestations of word play is subtile under the floor or under the roof?
Electronics Forum | Fri Nov 05 14:00:07 EST 1999 | John Thorup
You know, Rich - if the only problem with your present method of delivery is that the container runs dry and the pump sucks air you can add a non-invasive low level alarm quite simply and for about $100. A suitable adjustable sensitivity capacitive
Electronics Forum | Mon Jun 21 16:11:41 EDT 1999 | John Thorup
| | I am finding that some of our IC's are coming from the supplier with the humidity gauge in the bag reading 10-20%. Has anybody done any tests to determine what humidty level in a package will cause problems during reflow? | Usually a proper m
Electronics Forum | Fri Jan 15 15:40:05 EST 1999 | Ted Shoneck
| I am interseted in an entry level placement machine and looking for opinions and advice on manufacturers. My present line, an MPI-580 just became obsolete due to a bankruptcy situation! I need to place BGA and 20 mil fine pitch, speed is not too
