Vertically structured group III nitride semiconductor LED chip and method for manufacturing the same

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United States of America Patent

PATENT NO 9012935
SERIAL NO

14017889

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A method for manufacturing vertically structured Group III nitride semiconductor LED chips includes a step of forming a light emitting laminate on a growth substrate; a step of forming a plurality of separate light emitting structures by partially removing the light emitting laminate to partially expose the growth substrate; a step of forming a conductive support on the plurality of light emitting structures; a step of lifting off the growth substrate from the plurality of light emitting structures; and a step of cutting the conductive support thereby singulating a plurality of LED chips each having the light emitting structure. The step of partially removing the light emitting laminate is performed such that each of the plurality of light emitting structures has a top view shape of a circle or a 4n-gon (“n” is a positive integer) having rounded corners.

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Patent Owner(s)

  • BBSA LIMITED;DOWA ELECTRONICS MATERIALS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Meoung Whan Gyeonggi-Do, KR 19 112
Jang, Pil Guk Gyeonggi-Do, KR 6 34
Kadowaki, Yoshitaka Tokyo, JP 27 69
Lee, Seog Woo Gyeonggi-Do, KR 13 55
Toba, Ryuichi Tokyo, JP 28 105
Toyota, Tatsunori Toyko, JP 14 41

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