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. 04, 2021
Filed:
Apr. 29, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
John Michael Goward, Redmond, WA (US);
Stephen John Holmes, Redmond, WA (US);
Maxwell Parsons, Berkeley, CA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
A light-emitting assembly that includes multiple light-emitting devices electrically coupled to a substrate via nano-porous metal blocks. The light-emitting assembly may be used as a source array of a near-eye display device. The light-emitting devices may be superluminescent diodes and the nano-porous metal blocks may include nano-porous gold. The nano-porous metal blocks allow thermal and electrical conduction between the light-emitting devices and the substrate. Nano-porous gold allows bonding at a lower temperature than solder and is compressible. Different pressure can be applied to different nano-porous metal blocks to align the optical heights of different light-emitting devices relative to the substrate. After forming nano-porous metal blocks on a substrate, the light-emitting devices are pressed onto the metal blocks to secure and align the light-emitting devices. The alignment process may be carried in an active optical alignment process when the light-emitting devices are powered and emit light.