The paper presents an overview of recent developments in the SiC field
. Within this field, two main streams are emerging: on the one hand, t
he commercial availability of bulk SiC crystals is likely to establish
SiC as a new wafer technology which allows many devices to be fabrica
ted in analogy to known Si ones. In this way, the high-temperature lim
it for the operation of sensors and electronic circuits can be signifi
cantly extended. Thin films of SiC, on the other hand, can be used as
an add-on to the existing Si technology. Using such films, new possibi
lities emerge with regard to the fabrication of microsensors. Applicat
ions of thin-film SiC in optics, optoelectronics and micromachining ar
e demonstrated.