Lighting device and method for manufacturing the same

Details Lighting device and method for manufacturing the same Lighting device and method for manufacturing the same

2007-11-27

2007-11-27

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000

Reexamination Certificate

active

11105402

ABSTRACT:
A lighting device and a method for manufacturing the same are described. First, a semiconductor layer of a first electrical property, an active layer and a semiconductor layer of a second electrical property are sequentially formed, and part of them are removed to form a mesa. A transparent contact layer is formed thereon, and thus forms a stack. Afterwards, a passivation layer is deposited on the stack and a first part of the semiconductor layer of the first electrical property adjacent to the stack. Part of the passivation layer is removed to expose part of the transparent contact layer. Then, an electrode of the second electrical property is formed on the exposed transparent contact layer. Afterwards, the electrode of the second electrical property is extended to the passivation layer on the first part of the semiconductor layer of the first electrical property to form a guard ring.

REFERENCES:
patent: 3404304 (1968-10-01), Bonin et al.
patent: 6462469 (2002-10-01), Young

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