Patent ID: 11958739
Assignee: UNIVERSITY OF RHODE ISLAND BOARD OF TRUSTEES
Field: Measurement (Instruments)
Classification: CPC B  G  H | IPC B

Claim 21:
22. A method for fabricating a microfluidic channel on a substrate coated with a thin film barrier, the method comprising the steps of:
(a) placing a substrate, coated with a thin film comprising a barrier on at least one of the substrate's surfaces, in between two electrodes that are each electrically connected to a plasma generator;
(b) activating the plasma generator to discharge a plasma-containing electron beam or arc upon the thin film, thereby removing portions of the thin film barrier in the form of a preliminary channel from the entrance side by the beam or arc; and
(c) subsequently contacting the entrance side with an etching chemical to deepen the preliminary channel into desired channel dimension.