Invention Grant
- Patent Title: Bonding methods for light emitting diodes
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Application No.: US16863576Application Date: 2020-04-30
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Publication No.: US11430658B2Publication Date: 2022-08-30
- Inventor: Stephan Lutgen , Thomas Lauermann
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: H01L21/20
- IPC: H01L21/20 ; H01L33/62 ; H01L33/02 ; H01L27/15 ; H01L33/00 ; G02B27/01 ; H01L33/32 ; H01L33/50 ; H01L33/60

Abstract:
Disclosed herein are techniques for bonding components of LEDs. According to certain embodiments, a method includes performing p-side processing of a first component. The p-side processing is performed from a direction adjacent to a surface of a p-side semiconductor layer of the first component that is opposite to an active light emitting layer of the first component. The method also includes aligning first contacts of the first component with second contacts of the second component, and subsequently performing hybrid bonding of the first component to the second component by performing dielectric bonding of a first dielectric material of the first component with a second dielectric material of the second component at a first temperature, and subsequently performing metal bonding of the first contacts of the first component with the second contacts of the second component by annealing the first contacts and the second contacts at a second temperature.
Information query
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