Electronics Forum | Thu May 31 10:25:19 EDT 2012 | edmaya33
J-STD-001E, 8.3.6.2 states 1.56um/cm2 NaCl value.
Electronics Forum | Thu May 31 21:43:44 EDT 2012 | davef
edmaya33, you're correct about what J-STD-001E says, but recognize that the measure that you refer us to in not IC [Ion Chromatography]. It is modified ROSE [Resistivity of Solvent Extract] ... or whatever they call modified ROSE now-a-days
Electronics Forum | Sat Jun 09 17:15:44 EDT 2012 | davef
Here's a link to the operating manual for your Rohde - Schwarz Vector Signal Generator http://www2.rohde-schwarz.com/file_5734/smiqb_e11_bd1.pdf
Electronics Forum | Tue May 29 05:22:22 EDT 2012 | elefu
Is anyone on here running a quad machine or has run one in Utah or one of the surrounding states. I would like to talk with you and see what you think of the machine. If your in Utah I will even take you to lunch if you want. Thanks James
Electronics Forum | Wed May 30 10:09:39 EDT 2012 | brettrenishaw
Recently we have noticed a purple-blue colour film on the surface of the molten solder. It can be cleared when de-drossing the pot. The pot will normally go a yellow/gold colour before it turns purple-blue. Is this most likely an oxide of the tin or
Electronics Forum | Wed May 30 22:13:45 EDT 2012 | davef
Richard Lathrop, technical service manager, SMT materials, Heraeus Circuit Materials Division, may be contacted at (610) 825-6050, ext. 265; e-mail: rlathrop@4cmd.com.
Electronics Forum | Fri Jun 01 04:05:25 EDT 2012 | grahamcooper22
If you think the root cause is excess moisture in the pcb then try to bake it for longer. Even longer then the manufacturers recommendation. It takes a long time for excess moisture to come out of a pcb. Try 24 hours , then 36 hours and see if there
Electronics Forum | Mon Jun 04 09:15:08 EDT 2012 | davef
bwjm: Delamination can be attributed to several factors: * Entrapped moisture, processing solutions, and what not that expands when heated to normal soldering temperature * Excessive soldering temperature * Excessive laminating temperature * Def
Electronics Forum | Mon Jun 04 23:04:45 EDT 2012 | jacktan
There is sympthom that the delam only happen on area that near to via location.What does this try to relate to? It appears on both primary and secondary side even pass through with primary reflow process only.
Electronics Forum | Tue Jun 05 06:37:48 EDT 2012 | mosborne1
Definition: Pink Ring - A condition that can exist in multilayer printed circuit or wiring boards, in which the oxide around a through-hole inner layer interface is chemically removed, and there is a lack of adhesion of the inner layer to the dielec
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