Conductor tracks for curved surfaces

At the LASER.World of Photonics 2005 in Munich the Laser Zentrum Hannover (LZH) presents a process for creating any structure on curved surfaces of almost all surfaces and materials.

Common lithographic processes can only be used for planar surfaces, but this laser assisted process is also suited for creating structures non-planar surfaces such as glass tubes.

First, a photo-sensitive polymer is applied to the surface and then a femtosecond laser is used to create structures in the polymer. The exposed areas are removed by a chemical process and the workpiece is metalized by gold. Afterwards the polymer layer is removed by lift-off and only those golden structures that have direct surface contact remain.

Using this process structures can be created on almost every surface regardless its shape. Also, the workpiece can be made of any material as long as the applied layer material adheres to it. The applied layer can be made of a variety of materials.

Thanks to this new process 2½-D structures can be fabricated using lithography. An example of an electronic circuit on a glass tube will be shown at the LASER.World of Photonics in Munich (hall 3, booth B3.302)

Business Development & Communications Department
Michael Botts
Public Relations
Tel.: +49 511 2788-151
Fax: +49 511 2788-100
The Laser Zentrum Hannover e.V. (LZH) carries out research and development in the field of laser technology and is supported by the Ministry of Economic Affairs, Labour and Transport of the State of Lower Saxony (Niedersächsisches Ministerium für Wirtschaft, Arbeit und Verkehr).