Invention Application
- Patent Title: A SOLID STATE LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING A SOLID STATE LIGHT EMITTING DEVICE
- Patent Title (中): 固态发光装置及制造固态发光装置的方法
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Application No.: US15036879Application Date: 2014-11-06
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Publication No.: US20160329467A1Publication Date: 2016-11-10
- Inventor: Sander Petrus Martinus Noijen , Roy Antoin Bastiaan Engelen , Norbertus Antonius Maria Sweegers , Marc Andre de Samber
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP13193482.0 20131119
- International Application: PCT/EP2014/073852 WO 20141106
- Main IPC: H01L33/38
- IPC: H01L33/38 ; H01L33/00

Abstract:
A solid state light emitting device includes a light emitting stack (20), a metallization (30), comprising a guard layer (36) of metal, and a dielectric layer (50) over the guard layer (36) of the metallization. During subsequent processing delamination and/or cracking may occur at the edges of the devices, sometimes referred to as die edge defects. To address these defects a plurality of stress-relief elements (62, 64) and/or anchor elements may be provided in an edge region of the metallization and/or dielectric layer for reducing delamination. The stress-relief elements (62, 64) are formed by regions of reduced thickness or increased thickness in the guard layer (36).
Public/Granted literature
- US09882091B2 Solid state light emitting device and method of manufacturing a solid state light emitting device Public/Granted day:2018-01-30
Information query
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