4. Etching a substrate: processes
  5. Nongaseous phase etching of substrate
  6. Recycling, regenerating, or rejunevating etchant

Robert J. Durante

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Copper etching compositions and method for etching copper

Etching a substrate: processes – Nongaseous phase etching of substrate – Recycling – regenerating – or rejunevating etchant
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Method of producing copper surfaces for improved bonding,...

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Reexamination Certificate

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Method of producing copper surfaces for improved bonding,...

Compositions – Etching or brightening compositions
Reexamination Certificate

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Method of producing copper surfaces for improved bonding,...

Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Reexamination Certificate

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