Patent ID: 11860157
Assignee: CREATV MICROTECH, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC G  B  Y | IPC B  G

Claim 0:
1. A microfilter comprising:
a first single polymer layer formed from an epoxy-based negative photo-definable dry film, wherein the first single polymer layer has a flexibility to be disposed on a roll and unrolled;
a plurality of first apertures formed by exposing the first single polymer layer to a UV light via an optical mask to obtain a selected shape of said apertures based on said optical mask, each of said apertures extending through the first single polymer layer having said flexibility,
said first single polymer layer having said first apertures and said flexibility forming a freestanding unattached microfilter structure with uniform thickness and having said flexibility; and
a surface on said first single polymer layer modified to be hydrophilic.