Electronics Forum | Sat Jun 23 07:34:26 EDT 2007 | davef
This sounds like a form of corrosion called electromigration. It creates cathode anodic filaments. They have a fern like shape because it is a metallic based crystal structure. Electromigration requires: * Difference of electrical potential * Chemica
Electronics Forum | Tue Feb 19 08:46:06 EST 2008 | rgduval
The last time I encountered dendrite growth, it was within a component package. I believe we were experiencing it within a crystal. The root cause was water intrusion during in line wash. The component was supposed to have been sealed and safe for
Electronics Forum | Mon Feb 25 22:04:30 EST 2008 | davef
Here�s background on: * Electromigration: http://en.wikipedia.org/wiki/Electromigration * Dendrite: http://en.wikipedia.org/wiki/Dendrite_(crystal) For us, electromigration is the electrochemical process that creates dendrites. As a bonus, here's
Electronics Forum | Mon Sep 08 02:39:37 EDT 2008 | akareti
By connector, you mean socket? Connector use for board to board connection from FCI, MFG P/N: 84500-202 What is the material of the connector(socket)? Is it very frigale? Housing: liquid crystal polymer Solder ball: SnPb 63/37 how big are the bal
Electronics Forum | Tue Jan 14 13:21:17 EST 2014 | emeto
This is according to Kester What happens if the paste gets too cold? At temperatures below -15oC (5oF), one or more components of the solder paste may crystallize, producing a non-homogeneous appearance to the solder paste. Such non-homogeneity may
Electronics Forum | Thu Nov 29 03:19:46 EST 2018 | robl
You may want to look at a product called place & bond underfilm. It is essentially a SMD tape and reel placed pad that acts like underfill when going through reflow. I got some samples from an APP tech day and had a play and it bonds very well. Y
Electronics Forum | Wed Nov 20 12:37:30 EST 2019 | compit
You bought quartz (at DigiKey), which should have 10 pF capacitors, and mounted on a demo board is from JFR - "(..) Load capacitance (CL): Series, 16pF, 20pF, 30pF, or specify (..)" - try changing the quartz capacitors, or check with an oscilloscope
Electronics Forum | Thu Feb 03 13:18:03 EST 2022 | davidwallis
Hi All. I have one of these, which was bought secondhand and has never been commissioned. Does anyone out there know of a UK agent who services these, or can help with any advice regarding spares, operation characteristics etc? Thanks in advance.
Electronics Forum | Tue Aug 22 15:22:46 EDT 2023 | thecolonel97
Our paste manufacturer failed to respond. I did try adding 2 frozen jugs of water into the reservoir tank, this did not lower the cooler 1 temp. We have to have a water or air flow restriction causing this to run hotter. Still currently investigat
Electronics Forum | Wed Aug 23 14:58:38 EDT 2023 | markhoch
I was at our local SMTA Michigan Chapter Tech Forum & Tabletop Expo last week and BTU was introducing a new option designed to reduce flux build-up in the heating zones. Might not be a bad idea to reach out to them to learn more about it. Just a sug
