Nanopass Technologies Ltd.

Nanopass Ltd.

J W Berenschot

Yehoshua Yeshurun

Meint De Boer

J G E Gardeniers

Meir Hefetz

Mier Hefetz

J G Gardeniers

A method for processing a wafer to form a plurality of hollow microneedles projecting from a substrate includes forming, by use of a dry etching process, a number of groups of recessed features, each including at least one slot deployed to form an open shape having an included area and at least one hole located within the included area. The internal surfaces of the holes and the slots are then coated with a protective layer. An anisotropic wet etching process is then performed in such a manner as to remove material from outside the included areas while leaving a projecting feature within each of the included areas. The protective layer is then removed to reveal the microneedles.

Microneedle structure and production method therefor

Growing community of inventors

Winterswijk, Netherlands

J W Berenschot