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:
Jul. 17, 2012
Filed:
Feb. 18, 2010
Jian Xu, State College, PA (US);
Somasundaram Ashok, State College, PA (US);
Jian Xu, State College, PA (US);
Somasundaram Ashok, State College, PA (US);
The Penn State Research Foundation, University Park, PA (US);
Abstract
A light emitting apparatus may include a gate metal positioned between a p-type contact and an n-type contact, a gate oxide or other dielectric stack positioned below and attached to the gate metal, a Ge or SiGechannel positioned below and attached to the gate dielectric stack, a buffer, and a silicon substrate positioned below and attached to the buffer. The light emitting apparatus may alternatively include a gate metal positioned between a p-type contact and an n-type contact, a wide bandgap semiconductor positioned below and attached to the gate metal, a Ge or SiGechannel positioned below and attached to the wide bandgap semiconductor, a buffer, and a silicon substrate positioned below and attached to the buffer. Embodiments of the light emitting apparatus may be configured for use in current-injected on-chip lasers, light emitting diodes or other light emitting devices.