Invention Grant
- Patent Title: LED with internally confined current injection area
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Application No.: US17388949Application Date: 2021-07-29
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Publication No.: US11978825B2Publication Date: 2024-05-07
- Inventor: Kelly McGroddy , Hsin-Hua Hu , Andreas Bibl , Clayton Ka Tsun Chan , Daniel Arthur Haeger
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Aikin & Gallant, LLP
- The original application number of the division: US14194509 2014.02.28
- Main IPC: H01L33/14
- IPC: H01L33/14 ; H01L23/00 ; H01L25/075 ; H01L27/01 ; H01L27/15 ; H01L33/00 ; H01L33/06 ; H01L33/30 ; H01L33/42 ; G09G3/32 ; H01L33/16 ; H01L33/20

Abstract:
Methods and structures for forming arrays of LED devices are disclosed. The LED devices in accordance with embodiments of the invention may include an internally confined current injection area to reduce non-radiative recombination due to edge effects. Several manners for confining current may include etch removal of a current distribution layer, etch removal of a current distribution layer and active layer followed by mesa re-growth, isolation by ion implant or diffusion, quantum well intermixing, and oxide isolation.
Public/Granted literature
- US20220013688A1 LED WITH INTERNALLY CONFINED CURRENT INJECTION AREA Public/Granted day:2022-01-13
Information query
IPC分类: