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:
Feb. 12, 2019
Filed:
Jun. 30, 2016
Mellanox Technologies, Ltd., Yokneam, IL;
Alex Burlak, Pardes Hana Karkur, IL;
Lion Bassat, Pardes Hana Karkur, IL;
Itshak Kalifa, Ramat Gan, IL;
Kfir Margalit, Rehovot, IL;
Morees Ghandour, Rama Village, IL;
Alon Webman, Tel Aviv, IL;
Elad Mentovich, Tel Aviv, IL;
Sylvie Rockman, Zichron Yaakov, IL;
Evelyn Landman, Haifa, IL;
MELLANOX TECHNOLOGIES, LTD., Yokneam, IL;
Abstract
A transducer reliability testing and VCSEL failure prediction method are provided. The method includes applying a testing temperature and a constant current to a VCSEL for a testing time. The method monitors a forward voltage of the VCSEL and determines if a first change in forward voltage is above a first predetermined threshold over the testing time and if a second change in forward voltage is above a second predetermined threshold over a portion of the testing time. The method determines failure of the VCSEL if either of these predetermined thresholds are exceeded. The method determines passage of the VCSEL if the first change in the forward voltage and the second change in the forward voltage are both below the first predetermined threshold and the second predetermined threshold, respectively.