White LED chip and white LED packaging device

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United States of America Patent

PATENT NO 9923119
SERIAL NO

14489639

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Abstract

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A white LED chip includes a P-type layer, a tunneling structure, an N-type layer, an N-type electrode, and a P-type electrode. The tunneling structure is disposed over the P-type layer. The tunneling structure includes a first barrier layer, an active layer and a second barrier layer. The first barrier layer includes a first material layer, the active layer includes a second material layer, and the second barrier layer includes a third material layer. The N-type layer is disposed over the tunneling structure. An energy gap of the second material layer is lower than an energy gap of the first material layer and an energy gap of the third material layer. Each of the first material layer, the second material layer and the third material layer is a metal oxide layer, a metal nitride layer or a metal oxynitride layer.

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Patent Owner(s)

Patent OwnerAddress
OPTO TECH CORPORATIONNO 8 INNOVATION RD I HSINCHU SCIENCE PARK HSINCHU 30076

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Po-Ting New Taipei, TW 16 13
Peng, Lung-Han Taipei, TW 27 142
Wang, Yao-Te Taipei, TW 13 91
Yeh, Po-Chun Taichung, TW 35 96

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