Patent ID: 11877379
Assignee: TECHNISCHE UNIVERSITäT DARMSTADT
Field: Chemical engineering (Chemistry)
Classification: CPC H | IPC H

Claim 10:
11. A method for producing an apparatus for guiding charged particles, comprising a substrate having a surface, a layer formed on the surface, an inhomogeneous channel which is formed by two mutually opposite delimiting structures on a side of the layer that is opposite the substrate, and comprising a radiation device which is designed to generate at least one pulsed laser beam and inject the at least one pulsed laser beam into the channel from a side that is opposite the layer wherein the surface is reflective, such that the surface brings about an at least partial reflection of the at least one laser beam for guiding the charged particles, the method comprising the following steps:
providing a structure with a sequence consisting of an upper layer, the layer and the substrate, wherein the layer for the laser beam has a small optical density in comparison with the upper layer; and
etching only the upper layer, thereby forming the delimiting structures of the channel.