Invention Grant
- Patent Title: Light emitting diodes manufacture and assembly
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Application No.: US17575920Application Date: 2022-01-14
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Publication No.: US11888087B1Publication Date: 2024-01-30
- Inventor: Céline Claire Oyer , Allan Pourchet
- Applicant: Meta Platforms Technologies, LLC
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L33/62 ; H01L33/06 ; H01L21/66 ; H01L21/683

Abstract:
A method for manufacturing LED devices is provided. The method comprises forming an epitaxial layer on a starter substrate, the epitaxial layer having a first surface that interfaces with the starter substrate and a second surface opposite to the first surface; establishing an adhesive bond between the second surface of the epitaxial layer and a carrier substrate having a pre-determined light transmittance; etching away the starter substrate; etching away part of the epitaxial layer to form a plurality of light emitting diode (LED) dies on a third surface of the epitaxial layer opposite to the second surface; establishing one or more conductive bonds between selected one or more LED dies, from the plurality of LED dies, and a backplane; weakening the adhesive bond between the second surface of the epitaxial layer and the carrier substrate; and moving the carrier substrate away from the backplane.
Information query
IPC分类: