Advanced Electroless Copper Process for Semi-Additive IC Substrate Applications, featuring an Ionic Catalyst, and a high throwing power Tartrate-base Electroless Copper, designed for adhesion to low Ra insulators.
As IC packaging substrates evolve with finer features, semi-additive processing (SAP) becomes more important, requiring uniform thickness across the panel and repeatable etching characteristics. A high throw electroless copper system enables the user to have reliable coverage in microvias while minimizing surface copper deposits, thereby enhancing etching capability. DuPont’s Circuposit ADV 8500 Electroless Copper process has been developed to meet these needs.
Key Features of DuPont’s Circuposit ADV 8500 Electroless Copper process:
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Next Generation Metallization Technique for IC Package Application
Excellent throwing power observed with various desmear conditions. Electroless copper thickness ~ 0.3µm.
Stable adhesion on Low Ra Insulator materials