Electronics Forum | Fri Sep 05 13:49:04 EDT 2008 | gregoryyork
Tell the board shop to increase the cure temp of the resist as it is undecured especially if you have waxy/greasy resiues on the board and a brown tar like substence in the solder wave itself. If undercured then solder will not flow off the resist pr
Electronics Forum | Thu Apr 09 21:21:11 EDT 2009 | qualityguy
Hello, another SME is saying the solder resist cure level is suspect. I have had a industry SME make reference to this too. Adjusting the cure of the resist changes the surface energy
Electronics Forum | Fri May 08 09:44:23 EDT 2009 | davef
Board fabricators use solder as a resist to protect copper traces from process chemicals. Fabricators remove this resist in later processing. It's possible that board fabrication processing is the source of the tin that you see.
Electronics Forum | Wed Jul 17 03:23:09 EDT 2013 | vishnudas123
Dear All, can please tell specifications of heat resistant glass plate which is used to flux application and process control of wave soldering. can you tell the suppliers of the same in India. BR, Gupta.
Electronics Forum | Wed Jul 17 14:13:08 EDT 2013 | kenkay
We have an ICOM 6000 rose tester and everytime we run a program the machine stops and says "resistivity error". We have changed filters and calibrated the solution with no luck. Any ideas?
Electronics Forum | Thu May 19 03:39:04 EDT 2016 | jpcwg
Design application software in resistance welding layer options to carry on the design, can put the resistance welding options this functionality, born PCB board factory to actual production of PCB design are window. we are professional PCB manufac
Electronics Forum | Tue Feb 22 02:51:25 EST 2022 | davef
The industry standard for Resistivity of Solvent Extract (ROSE) Testing analysis is IPC-TM-650 Method 2.3.25 – Detection and Measurement of Ionizable Surface Contaminants by Resistivity of Solvent Extract (ROSE).
Electronics Forum | Mon Feb 05 14:55:45 EST 2024 | klauss
I have a ESD Surface Resistivity Meters and while trying to measure table to ground it wants us to set a voltage value as 10V, 100V, 500V. I'm not sure which one should i choose? What are them for?
Electronics Forum | Thu Jun 14 21:23:36 EDT 2001 | davef
Oooo, big bucks wusher!!! Consider the SMTnet Archives a valued resource. For instance, look at: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=1632&mc=2 As far as your resistivity measurement is concerned, you hav
Electronics Forum | Wed Jul 23 03:04:57 EDT 2008 | gfro
Hello, We are using a PCB with thickness 3.2mm 4 layer and lot of through hole via's of diameter 0.4mm. We specified our PCB vendor to do plugging. Now we have big problems, that after 1..4 weeks we measure a low resistance between track's/via's of
