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:
May. 28, 2013
Filed:
Apr. 23, 2008
Robert M. Ecker, Lino Lakes, MN (US);
Jonathan L. Kuhn, Ham Lake, MN (US);
James D. Reinke, Maple Grove, MN (US);
Can Cinbis, Shoreview, MN (US);
Timothy J. Davis, Coon Rapids, MN (US);
Paul F. Gerrish, Phoenix, AZ (US);
Jonathan P. Roberts, Coon Rapids, MN (US);
Robert M. Ecker, Lino Lakes, MN (US);
Jonathan L. Kuhn, Ham Lake, MN (US);
James D. Reinke, Maple Grove, MN (US);
Can Cinbis, Shoreview, MN (US);
Timothy J. Davis, Coon Rapids, MN (US);
Paul F. Gerrish, Phoenix, AZ (US);
Jonathan P. Roberts, Coon Rapids, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A reflectance-type optical sensor includes one or more photodiodes formed in a semiconductor substrate. A well having sidewalls and a bottom is formed in the top surface of the substrate, and a reflective layer is formed on the sidewalls and bottom. A light-emitting diode (LED) is mounted in the well, so that light emitted laterally and rearwardly from the LED strikes the sidewalls or bottom and is redirected in a direction generally perpendicular to the top surface of the substrate. The optical sensor can be fabricated using microelectromechanical systems (MEMS) fabrication techniques.