AQUEOUS ALKALINE PRE-TREATMENT SOLUTION FOR USE PRIOR TO DEPOSITION OF A PALLADIUM ACTIVATION LAYER, METHOD AND USE THEREOF
The invention relates to an aqueous alkaline pre-treatment solution for use prior to deposition of a palladium activation layer on a substrate in manufacturing an article with an integrated circuit and a method and use thereof, wherein the solution comprises:- at least one hydroxycarboxylic acid or...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention relates to an aqueous alkaline pre-treatment solution for use prior to deposition of a palladium activation layer on a substrate in manufacturing an article with an integrated circuit and a method and use thereof, wherein the solution comprises:- at least one hydroxycarboxylic acid or salt thereof according to the general formula (I) [RCH2-(RCH)n-COO-]mMm+ (I)wherein n is integer from 2 to 4 and m is 1 or 2,R is independently H or OH with proviso that at least one R is OH, and whereinMm+with m: 1 is hydrogen, ammonium or alkali metal; or Mm+with m: 2 is earth alkali metal,- at least one polyoxyethylene sorbitan fatty acid ester derivative,- at least one sulphonated fatty acid or a salt thereof. |
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