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

The optoelectronic circuit includes a photoreceptor (1) made in a silicon semiconductor substrate (4), and a monomode VSCEL laser diode (2) made in particular in a gallium arsenide substrate. The photoreceptor includes at least one photosensitive area with a pixel array for picking up light and an a...

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Bibliographic Details
Main Authors WILLEMIN, MICHEL, KAYAL, ABDUL-HAMID, GRANDJEAN, ANDRE, QUERCIA, VICTORIO, TANNER, STEVE
Format Patent
LanguageChinese
English
Published 16.07.2009
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
DEVICES USING STIMULATED EMISSION
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
SEMICONDUCTOR DEVICES
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Summary:The optoelectronic circuit includes a photoreceptor (1) made in a silicon semiconductor substrate (4), and a monomode VSCEL laser diode (2) made in particular 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 (2) is mounted and electrically connected directly on one part of the photoreceptor. This laser diode may be housed in a cavity (13) made through a passivation layer (5) of the photoreceptor, and connected by a conductive terminal (12) to a first contact pad (3) at the bottom of the cavity. An electrode (17) on the top of the diode can be connected by a metal wire (15) to a second neighbouring accessible contact pad (3) of the photoreceptor. The photoreceptor (1) controls the diode directly via the electrode and the conductive terminal to generate a laser beam (L).
Bibliography:Application Number: TW200897132176