Electronics Forum | Wed Aug 20 09:15:10 EDT 2003 | John S
My company is developing a product that will require solder paste to be printed on a piece of cast aluminum. The surface of the casting is not completely flat. It has been recommended that one way to work around this might be to use a screen instea
Electronics Forum | Fri Aug 22 11:34:32 EDT 2003 | Stephen
Don't forget moisture senitive devices. If you have them on the bottom side, usually you do the other side before it is an issue, but if you are going to store the boards for a while it could be an issue. Where I am, partially building product then
Electronics Forum | Tue Sep 09 09:25:29 EDT 2003 | james
What about making the customer drawing or parts > list with their rev as a part number on your > parts list? Example: (455556 rev X) would be a > part number on your parts list. What about keeping their revision as A, B, C and in your system it
Electronics Forum | Mon Sep 22 22:19:16 EDT 2003 | Dean
Questions: 1. Is this a retail product sold as PCB only? Or is this in a finished chassis / case (like an external modem)? 2. Are the customers damaging only the BGA devices? Like prying them up with a screw driver? What? You can dam and fill
Electronics Forum | Wed Sep 24 20:04:44 EDT 2003 | Michel Moninger
http://www.mgchemicals.com/products/832.html Loctite makes a version too, if I recall. Designed to be tamper evident, but yes, rework is a bear. We had similar results using one of Lord Chemical's urethane potting compounds. It was a filled black fi
Electronics Forum | Sat Sep 27 09:32:36 EDT 2003 | mantis
All, I was wondering what causes the corners of a bga to lift during reflow process.Now just to clarify i have been running this one particular product for 4 years and i have the process and reflow profile down to a tee.But recently i have witnessed
Electronics Forum | Sat Oct 04 21:43:32 EDT 2003 | lysik
I have 12 of the 500 series machines. For runner to the 1500. I had some software bugs but upgraded to the latest software. In 12 months of 3 shift a day production (with 1 day for maint) I have only spent about $500 USD in repair parts. I do also ru
Electronics Forum | Fri Oct 10 19:24:53 EDT 2003 | MA/NY DDave
Hi SMTAnet, SMTnet, You already got good answers for how to go forward. I believe that this 50mils is a remnant of the days when we started at 125 mil grids and started the process of going down to 100mil grids, SMT. My gosh who would ever want a 1
Electronics Forum | Sun Oct 19 19:01:20 EDT 2003 | harotec
Dave and Pete No bad words against a good batch oven. I don't know the APS-oven mentioned but check out the description of the unique temperature-feedback system in our Ecosold at http://www.reflowsystems.com/press/PressReleases.pdf . As a matter o
Electronics Forum | Mon Oct 13 15:34:22 EDT 2003 | John
Anyone ever noticed a difference in measuring the temperature on a soldered board vs. using an unsoldered mole in their wave? I've been looking at the temperature of a specific part, and it reads much higher on an unsoldered mole vs. a soldered mole
