Compatibility in heterogeneous integration of a CdTe interdigitated photoconductor with an AlGaAs field-effect transistor

A CdTe PC-AlGaAs/GaAs FET OEIC has been fabricated for the first time. The compatibility of such an integration is shown. Such an integration permits the use of high-quality optical compounds with performance electronic materials. A responsivity of 30 A/W at 0.77 μm has been obtained for integrated circuits. This integration opens a new perspective in heterostructure infra-red OEICs.