Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
Patent
1992-11-13
1993-11-09
Mintel, William
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
In combination with or also constituting light responsive...
257 85, 257 95, 257 96, 257 97, 307311, H01L 2714
Patent
active
052605868
ABSTRACT:
An optical EXCLUSIVE-OR element in which the number of basic elements is reduced which results in increased integration of the element. The optical EXCLUSIVE-OR element comprises a substrate, a first optical functional element and a second optical functional element having the same structure as that of the first optical functional element. Each of the first and second optical functional elements has a light receiving portion and a light emitting portion. The light emitting portion is formed on the light receiving portion. The light emitting portion comprises semiconductor materials having an energy gap wider than the dominant peak energy of the input light, and the light receiving portion comprises semiconductor materials having an energy gap equal to or narrower than the dominant peak energy of the input light. A first electrode is formed over the first and second optical functional elements, and has windows which allow the input light and output light to pass through. Each of the windows being formed at a position corresponding to a top surface of each of the first and second optical functional elements.
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Matsuda et al., "Integration of InGaAsP/InP Optoelectronic Bistable Switches with a Function of Optical Erasing," IEEE Electron Device Letters, vol. 11, No. 10, Oct. 1990, pp. 442-444.
Taylor et al., "Experimental Realization of an N-Channel Double Heterostructure Opto Electronic Switch," Appl. Phys. Lett. 48(20), May 19, 1986, pp. 1368-1370.
Kondoh Hiroshi
Osawa Yasuhiro
Yamaguchi Kiyoshi
Mintel William
Ricoh & Company, Ltd.
Ricoh Research Institute of General Electronics Co., Ltd.
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