IP Library Granted Patent US 12,087,887
Granted Patent B2
US 12,087,887 · App. 17/033,699 · Granted Sep 10, 2024

Wavelength conversion material, method of manufacturing thereof and light emitting device

Inventors: Yi-Ting Tsai (Hsinchu, TW); Hung-Chia Wang (Hsinchu, TW); Chia-Chun Hsieh (Hsinchu, TW); Hung-Chun Tong (Hsinchu, TW); Yu-Chun Lee (Hsinchu, TW); Tzong-Liang Tsai (Hsinchu, TW)
Assignee: Lextar Electronics Corporation
H01L33/502H01L33/18H01L2933/0041
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Quick Facts
Patent No.
US 12,087,887
App. No.
17/033,699
Granted
Sep 10, 2024
Kind
B2
Abstract

The wavelength conversion material includes a general formula (I) M m A a B b C c D d E e :ES x RE y and satisfies a condition (II) that a proportion of D for the wavelength conversion material greater than or equal to 50%. M is selected from a group consisting of Ca, Sr and Ba. A is selected from a group consisting of elements Mg, Mn, Zn and Cd. B is selected from a group consisting of elements B, Al, Ga and In. C is selected from a group consisting of Si, Ge, Ti and Hf. D is selected from a group consisting of elements 0 , S and Se. E is selected from a group consisting of elements N and P. ES is selected from a group consisting of divalent Eu, Sm and Yb. RE is selected from a group consisting of trivalent Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm.

Claims (2)

1. A wavelength conversion material comprising a chemical formula 65SiO 2 -17(Ca,Sr)CO 3 -23AlN-5ZnS-0.125EuN.

2. A wavelength conversion material comprising a chemical formula 65SiO 2 -17(Ca,Sr)CO 3 -23AlN-5ZnS-0.25EuN.

Assignments (2)
MERGER Recorded Mar 27, 2026
From: LEXTAR ELECTRONICS CORPORATION
To: ENNOSTAR CORPORATION
Reel/Frame 075286/0822 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2020
From: TSAI, YI-TING; WANG, HUNG-CHIA; HSIEH, CHIA-CHUN; TONG, HUNG-CHUN; LEE, YU-CHUN; TSAI, TZONG-LIANG
To: LEXTAR ELECTRONICS CORPORATION
Reel/Frame 053895/0853 →