发明名称 |
SUBSTRATE DETACHING APPARATUS OF LLO PROCESS |
摘要 |
PURPOSE: An apparatus for detaching a substrate in a laser lift-off process is provided to increase the packaging density of a substrate by simultaneously preventing the characteristic of an LED element from being dropped and keeping the advantage of a vertical electrode structure. CONSTITUTION: A buffer layer(20) is formed at the upper part of a sapphire substrate(10). A gallium nitride-based LED structure(30) is laminated on the surface of the buffer layer. The gallium nitride-based LED structure comprises a N-type nitride gallium film(31), an active layer(32), a P-type nitride gallium film(33), a P-type electrode layer(34), and a reflecting layer(35). A plurality of structural support layers(40) is laminated on the top surface of the LED structure. A vacuum chuck(110) respectively adsorbs the substrate and the structural support layer onto the top part and lower part.
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申请公布号 |
KR20110131017(A) |
申请公布日期 |
2011.12.06 |
申请号 |
KR20100050620 |
申请日期 |
2010.05.28 |
申请人 |
LTS CO., LTD. |
发明人 |
PARK, HONG JIN;CHO, YUN CHAE;SUH, JONG HYUN;LIM, SE HWAN;SUN, SANG PIL |
分类号 |
H01L33/00;H01L21/20 |
主分类号 |
H01L33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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