Ernst Leitz Wetzlar Gmbh

Martin Hoppe

Knut Heitmann

Andreas Thaer

Eckhard Schneider

A process for modifying structural profiles produced by polymerization or depolymerization in resist layers. As a function of the acoustic impedance of the substrate carrying the resist layer, the structures are irradiated with an ultrasonic beam. An ultrasonic beam for which the substrate represents a high impedance is used in order to enhance the contrast of the structures. An ultrasonic beam for which the substrate represents a low impedance is used to weaken the contrast. An acoustic microscope is especially suitable for carrying out the process.

Process for modifying structural profiles in resist layers

A process for the production of structures by the polymerization, or fragmentation of resist layers comprising the steps of effecting an incomplete exposure of the resist layer corresponding to the pattern of the structures, and of fully developing the structure in the resist layer by ultrasonic irradiation. An acoustic microscope is preferably used for the ultrasonic irradiation, whereby the formation of the structure in the resist layer may also be observed.

Growing community of inventors

Wetzlar, Germany

Martin Hoppe