Electronics Forum | Thu Jun 08 01:46:00 EDT 2023 | camilleyang3
To prevent BGA (Ball Grid Array) issues related to SMT (Surface Mount Technology) solder resist when fabricating a PCBA (Printed Circuit Board Assembly), you can follow these guidelines: Design considerations: Ensure proper spacing between BGA pads
Electronics Forum | Mon Jan 27 17:59:18 EST 2020 | slthomas
Solvent resistance? That's the only thing that made any sense to me.
Electronics Forum | Mon Nov 09 18:54:27 EST 2009 | aqueous
The AQ400 Series (manufactured between 1992 and 1996 used a Myron-L brand resistivity controller. If you purchased this machine from Aqueous Technologies you would have received a Myron-L manual which describes the calibration procedure in detail.
Electronics Forum | Tue Mar 03 16:11:48 EST 2009 | waveroom
This is a resistance soldering application. I suggest checking with American beauty also known as assembly technologies. http://www.assemblytech.com I believe.
Electronics Forum | Wed Dec 05 23:31:12 EST 2012 | aqueous
This is a (Resistivity of Solvent Extract (ROSE) tester. Per IPC standards, ROSE testers use a test solution comprised of 75% IPA (99% pure) and 25% DI water. -Mike Konrad Aqueous Technologies www.aqueoustech.com konrad@aqueoustech.com
Electronics Forum | Thu Mar 15 02:25:04 EDT 2007 | Mike Konrad
Dave, I would not recommend use of a multi-meter to determine high quality DI water resistivity readings. There are a number of reasons including a multi-meter�s lack of temperature compensation. We use a Myron-L resistivity meter to accurately de
Electronics Forum | Wed Nov 17 09:02:57 EST 1999 | Dave F
John: The 180 Tg point is a sweet spot for obtaining heat resistance, cost effectivly. These high technology boards provide good thermal resistance for wire bonding, direct chip attach, and BGA mounting and rework. Since these boards are harder th
Electronics Forum | Fri Sep 26 16:34:16 EDT 2008 | aqueous
Its not likely your air quality that lowers the test solution's resistivity. Maintaining 60 M-Ohm requires almost constant circulation through DI resin beds. Just natural CO2 (Carbon dioxide) absorbed by the test solution will lower the resistivity
Electronics Forum | Wed Sep 01 14:58:59 EDT 2004 | Shean Dalton
To address the last sentence of the recent posting, Austin American Technology does have experience with board cleaners as described. More recently AAT developed a cleaning system simliar to your description called the AquaBatch. The AquaBatch was
Electronics Forum | Fri Oct 11 17:30:37 EDT 2002 | peterson
Ok, I can't resist. I agree that a rep should be allowed to contribute if he/she identifies themselves. There will always be a conflict between technology/information and sales. Here's another example. If you are reading say, Circuits Assembly or SMT
