The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2011
Filed:
Aug. 18, 2008
Michel Willemin, Prêles, CH;
André Grandjean, Cressier, CH;
Victorio Quercia, Vallamand, CH;
Abdul-hamid Kayal, Neuchâtel, CH;
Steve Tanner, Essert-Pittet, CH;
Michel Willemin, Prêles, CH;
André Grandjean, Cressier, CH;
Victorio Quercia, Vallamand, CH;
Abdul-Hamid Kayal, Neuchâtel, CH;
Steve Tanner, Essert-Pittet, CH;
EM Microelectronic-Marin S.A., Marin, CH;
Abstract
The optoelectronic circuit includes a photoreceptor () made in a silicon semiconductor substrate (), and a monomode VCSEL laser diode () 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 () to a first contact pad () at the bottom of a cavity () made through a passivation layer () of the photoreceptor. An electrode () on the top of the diode is connected by a metal wire () to a second contact pad () of the photoreceptor. The photoreceptor controls the diode directly via the electrode and the conductive terminal to generate a laser beam (L).