Radiation Curable Inkjet Ink for Alkaline Etching or Plating Applications

This invention describes a method for creating detailed metal parts using a special inkjet ink. The ink is printed onto a metal surface and cured, forming a protective image. This image then acts as a mask while the exposed metal is either etched away or plated using an alkaline solution. The unique aspect is that the cured ink contains specific chemical links, like acetals or ketals, which allow it to be easily dissolved and removed later using an acidic solution.

Why it matters: Filed in 2020, this invention's core chemical processes for selective etching or plating are still relevant. Advances in precision inkjet printing and material science since then could offer improved control over ink deposition and chemical resistance, potentially making the method more efficient or applicable to new microfabrication needs.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedSpecialized ink chemistry, radiation curing, chemical baths.

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