Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Patent
1998-07-10
2000-07-04
Saadat, Mahshid
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
257100, 257 95, 257 99, H01L 3300, H01L 2715, H01L 3112
Patent
active
060842520
ABSTRACT:
Obtained is a semiconductor light emitting device in which a light emitting device chip is bonded on a first lead and a second lead is electrically connected to one electrode of the light emitting device chip. Besides, the light emitting device chip and the top end of the second lead are enclosed by resin which a light from the light emitting device chip transmits. The first and second leads are respectively enclosed by heat resistant enclosing material along predetermined lengths of both leads at the bottom of the package, which is opposed to the light emitting surface. As a result, adhesiveness between the resin package and the leads is improved and thereby prevented is corrosion of the leads and the light emitting device chip in the package from occurring, which can make reliability improved.
REFERENCES:
patent: 3739241 (1973-06-01), Thillays
patent: 3760237 (1973-09-01), Jaffe
patent: 3863075 (1975-01-01), Ironmonger et al.
patent: 4013915 (1977-03-01), Dufft
patent: 5596210 (1997-01-01), Konishi et al.
patent: 5798536 (1998-08-01), Tsutsui
Isokawa Shinji
Toda Hidekazu
Fenty Jesse A
Rohm & Co., Ltd.
Saadat Mahshid
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