Generation of Si3N4 layers for laser applications

The opportunities of film deposition by means of microwave plasma using plasma enhanced chemical vapor deposition (PECVD) will be discussed and the necessary process equipment presented. The AK series of MicroSystems GmbH is a platform for processing single substrates and is suitable for a variety of high-end applications. One possible application, the generation of passivation layers in the production of edge emitting diode lasers, is presented and discussed. By means of this application, the advantages of microwave plasmas are highlighted.