Optoelectronic circuit with a photoreceiver and a laser diode, and a module comprising the same

摘要

The circuit has a photoreceptor (1) formed in a silicon semiconductor substrate (4), comprising a photosensitive area with a pixel array for picking up light. A monomode vertical-cavity surface-emitting laser diode (2) is formed in a gallium arsenide substrate. The diode is mounted and electrically connected directly on a part of the photoreceptor. The diode is housed in a cavity (13) made via a passivation layer (5) of the photoreceptor. A contact pad (3) is placed at the bottom of the cavity for an electrical connection with a condutive or metal pad (12) of the diode.