Optoelectronic circuit with a photoreceptor and a laser...

Details Optoelectronic circuit with a photoreceptor and a laser... Optoelectronic circuit with a photoreceptor and a laser...

2011-06-07

2011-06-07

Park, Kinam (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S050124, C372S050100

Reexamination Certificate

active

07957448

ABSTRACT:
The optoelectronic circuit includes a photoreceptor (1) made in a silicon semiconductor substrate (4), and a monomode VCSEL laser diode (2) made in a gallium arsenide substrate. The photoreceptor includes at least one photosensitive area with a pixel array for picking up light and an area with a control and processing unit for the signals supplied by the pixels. The laser diode is mounted and electrically connected directly on one part of the photoreceptor. The laser diode is connected by a conductive terminal (12) to a first contact pad (3) at the bottom of a cavity (13) made through a passivation layer (5) of the photoreceptor. An electrode (17) on the top of the diode is connected by a metal wire (15) to a second contact pad (3) of the photoreceptor. The photoreceptor controls the diode directly via the electrode and the conductive terminal to generate a laser beam (L).

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European Search Report issued in corresponding application No. EP 07 11 5378, completed Jan. 30, 2008.

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