Electronics Forum: resistivity (Page 1 of 97)

ICOM rose tester resistivity error?

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?

ICOM rose tester resistivity error?

Electronics Forum | Fri Jul 26 12:46:30 EDT 2013 | gallionc

I am not familiar with the ICOM 6000, but we have an ICOM 5000. It could be possible that your Resistivty probe is bad, or possibly disconnected? We've also had different errors that were simply caused by not having enough solution in the tank. J

ICOM rose tester resistivity error?

Electronics Forum | Wed Jul 31 11:31:54 EDT 2013 | pbarton

Could it be that the IPA you are using in the solvent/DI mix is not anhydrous, or in some other way not the correct purity? If it is not correct you will not be able to calibrate. Best rgds, Peter B.

No-Clean Wave Flux - Water Wash

Electronics Forum | Mon Mar 29 11:49:44 EST 2004 | gregoryyork

White residue, probably nothing to do with the flux but was more than likely mineral salts from resist cure problem that are only soluble in Mineral Acids. No residue is the best IF resist is good, if resist issue's use low solids Rosin No Clean and

Resistance value level of lead-free solder joint

Electronics Forum | Mon May 26 08:02:11 EDT 2003 | davef

Resistance: Tables of wire gauge often provide a resistance measure of some kind for each gauge. That way we can estimate the resistance of any length of wire we might be interested in. Calculating trace resistance is only slightly more complicated.

Resistance of traces

Electronics Forum | Tue Sep 14 13:36:11 EDT 1999 | Jeff Armato

I am looking to find a formula to calculate the resistance of circuit traces based on width

TSOPII junction-to-case thermal resistance

Electronics Forum | Tue Aug 18 18:55:04 EDT 1998 | Sam Guilaume

Does anyone know the actual junction-to-case thermal resistance for TSOPII packages.

PCb surface Resistance

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?

Resistance Shift with Lead free

Electronics Forum | Thu Jan 19 16:25:03 EST 2006 | solderiron

Any metalurgists out there? I take the resistance value of a metal oxide substrate made of silver or gold or manganese. I then solder with 63/37 and the resistance changes but not dramatically. I then solder with Lead free SAC305 and the resistance c

Resistance Shift with Lead free

Electronics Forum | Fri Jan 20 08:55:31 EST 2006 | patrickbruneel

Steve, How do you measure the resistance is it by probing the surface? Concerning the alloy there is a straightforward linear correlation between the tin content and the electrical conductivity of the alloy. The higher the tin content in the alloy,

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