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    • 12. 发明授权
    • Semiconductor optical logical device
    • 半导体光逻辑器件
    • US4626878A
    • 1986-12-02
    • US447195
    • 1982-12-06
    • Yukinori KuwanoShoichi NakanoMasaru Takeuchi
    • Yukinori KuwanoShoichi NakanoMasaru Takeuchi
    • H01L31/167H01L31/12
    • H01L31/167
    • A semiconductor optical logical device comprises two light-emitting elements (2a, 2b) formed on one main surface of a transparent substrate (1), and two light sensitive elements (3a, 3b) formed on the other main surface faced to the light emitting elements (2a, 2b), respectively. The two light sensitive elements (3a, 3b) are comprised of amorphous semiconductor and are electrically connected in series. On the other hand, the light-emitting elements (2a, 2b) are driven responsive to individual input signals, respectively. If and when two input signals are applied simultaneously, the two light-emitting elements (2a, 2b) emit light simultaneously, so that an output is obtained from the two light sensitive elements connected in series. If and when only one input signal is applied, no output is obtained. Thus, an optical logical product circuit is provided.
    • 半导体光逻辑器件包括形成在透明衬底(1)的一个主表面上的两个发光元件(2a,2b)和形成在另一个主表面上的两个光敏元件(3a,3b),面对发光 元件(2a,2b)。 两个光敏元件(3a,3b)由非晶半导体构成,并串联电连接。 另一方面,响应于各个输入信号驱动发光元件(2a,2b)。 如果当同时施加两个输入信号时,两个发光元件(2a,2b)同时发光,从而从串联连接的两个光敏元件获得输出。 如果并且仅当施加一个输入信号时,不得到输出。 因此,提供了光逻辑积电路。