Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.
Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni
Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.
Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni
Electronics Forum | Fri Jun 18 08:19:12 EDT 1999 | Sergio Luiz Vito
There is a PCB with SMD components glued on bottomside. When I make tests for checking the resistance of glue the result is a break in the surface of PCB. How can I measure the surface resistance of PCB surface? How can I increase this resistance?
Electronics Forum | Sat Jun 19 08:37:25 EDT 1999 | Dave F
| There is a PCB with SMD components glued on bottomside. When I make tests for checking the resistance of glue the result is a break in the surface of PCB. | | How can I measure the surface resistance of PCB surface? | How can I increase this resis
Electronics Forum | Sun Sep 08 15:07:42 EDT 2013 | davef
PCB designers specify the application of solder mask [eg, varnish, solder stop mask, solder resist, etc] to fabricators to reduce the potential of bridging between two conductive traces during assembly soldering processes [eg, wave, reflow and hand s
Electronics Forum | Sat Feb 12 06:10:48 EST 2011 | lafir
Flexible substrate coated by PR+, found many open trace. The Photo resist peels off from CU surface randomly creating open circuit during devolopement. Any ideas???
Electronics Forum | Thu Aug 27 13:30:04 EDT 2020 | emeto
If there is damage of the glass coating or exposure of the resistive element it is a defect.
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 | Mon Feb 05 21:56:58 EST 2024 | davef
Generally for ESD testing, conductive materials (1.0 x 104 ohms to
Electronics Forum | Wed Jun 16 14:14:07 EDT 1999 | Dave F
| Hello, | I am looking for the surface resistivity and volume resistivity of standard fr4 as a function of temperature and /or humidity . can any one help? | Frank: Sorry I'm so late getting back to you. 1 Use either ASTM D5109-94 or IPC-TM-6
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