公开(公告)号：US20230299228A1

公开(公告)日：2023-09-21

申请号：US18164591

申请日：2023-02-05

Applicant: Meta Platforms Technologies, LLC

Inventor： Christopher Pynn ,  David Massoubre

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/24 ,  H01L33/32 ,  H01L33/46 ,  H01L33/58 ,  H01L33/42 ,  H01L33/06 ,  G09G3/32

CPC classification number: H01L33/0075 ,  G09G3/32 ,  H01L27/156 ,  H01L33/0095 ,  H01L33/06 ,  H01L33/24 ,  H01L33/32 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58 ,  G02B6/0073 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A method includes obtaining a first wafer that includes a first substrate, a first n-type or undoped semiconductor layer, an active layer, and a second n-type semiconductor layer; depositing a reflector layer on the second n-type semiconductor layer; forming a first metal bonding layer on the reflector layer; bonding a second metal bonding layer on a backplane wafer to the first metal bonding layer; removing the first substrate to expose the first n-type or undoped semiconductor layer; doping selected regions of the first n-type or undoped semiconductor layer with p-type dopants to form a plurality of p-doped regions; and depositing a common anode layer on the first n-type or undoped semiconductor layer, the common anode layer electrically coupled to the plurality of p-doped regions.

公开(公告)号：US20250022981A1

公开(公告)日：2025-01-16

申请号：US18765036

申请日：2024-07-05

Applicant: Meta Platforms Technologies, LLC

Inventor： Julia D'Rozario ,  David Massoubre ,  Francois Gérard Franck Olivier ,  Guillaume Lheureux ,  Christophe Antoine Hurni

IPC: H01L33/00 ,  H01L33/04 ,  H01L33/24

Abstract: A method for increasing carrier confinement in light-emitting devices may comprise (1) selectively depositing material over a layered structure of a light-emitting device and (2) defining an emitter size of the light-emitting device by causing the material to disorder regions of a light-emitting layer included in the layered structure. Various other apparatuses, systems, and methods are also disclosed.

公开(公告)号：US11774753B1

公开(公告)日：2023-10-03

申请号：US17531301

申请日：2021-11-19

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Giuseppe Calafiore ,  Ningfeng Huang ,  Andrew Maimone ,  Andrew Ouderkirk ,  Hee Yoon Lee ,  Maxwell Parsons ,  Scott Charles McEldowney ,  Babak Amirsolaimani ,  Pasi Saarikko ,  Wanli Chi ,  Alexander Koshelev ,  Barry David Silverstein ,  Lu Lu ,  Wai Sze Tiffany Lam ,  Gang Li ,  Stephan Lutgen ,  Francois Gerard Franck Olivier ,  David Massoubre

IPC: G02B27/00 ,  G02B27/44 ,  G02B27/01 ,  G02B27/09 ,  G02B27/10

CPC classification number: G02B27/0081 ,  G02B27/0172 ,  G02B27/0944 ,  G02B27/1086 ,  G02B27/44 ,  G02B2027/0145 ,  G02B2027/0152

Abstract: A waveguide assembly is provided. The waveguide assembly includes a pair of pupil-replicating waveguides. The first pupil-replicating waveguide is configured for receiving an input beam of image light and providing an intermediate beam comprising multiple offset portions of the input beam. The second pupil-replicating waveguide is configured for receiving the intermediate beam from the first pupil-replicating waveguide and providing an output beam comprising multiple offset portions of the intermediate beam. The input beam may be expanded by the waveguide assembly in such a manner that pupil gaps are reduced or eliminated.