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    • 3. 发明公开
    • Semiconductor laser device
    • Halbleiterlaservorrichtung。
    • EP0633636A1
    • 1995-01-11
    • EP94110528.0
    • 1994-07-06
    • KABUSHIKI KAISHA TOSHIBA
    • Kurihara, Haruki, c/o Intellectual Property Div.Yamamoto, Motoyuki, c/o Intellectual Property Div.
    • H01S3/19
    • H01S5/2231H01S5/2206H01S5/2219H01S5/32316H01S5/32325
    • A semiconductor laser device comprising, a first clad layer (14) of the first conductivity type semiconductor crystal deposited on a first electrode layer (11), an active layer (15), a second clad layer (16) formed of a semiconductor crystal of a second conductivity type, a current barrier layer (18) having a stripe-like current inlet opening (23), a second electrode layer (20) formed of a semiconductor crystal of the second conductivity type, and disposed on the current barrier layer (18) and on the electric current inlet opening. A first electrode (21) is formed on the second electrode layer (20). A second electrode (22) is formed on the bottom surface of the first electrode layer (11). Between the current barrier layer (18) and the second clad layer (16) is formed a photoelectric current barrier layer (19) formed of a semiconductor crystal of the first conductivity type having a larger band gap than that of the active layer (15). This structure is especially useful for devices comprising p-type current barrier layers.
    • 一种半导体激光器件,包括:沉积在第一电极层(11)上的第一导电类型半导体晶体的第一覆盖层(14),有源层(15),由半导体晶体形成的第二覆盖层(16) 第二导电类型,具有条状电流入口(23)的电流阻挡层(18),由第二导电类型的半导体晶体形成的第二电极层(20),并设置在电流势垒层 18)和电流入口开口。 第一电极(21)形成在第二电极层(20)上。 第二电极(22)形成在第一电极层(11)的底表面上。 在电流阻挡层(18)和第二覆盖层(16)之间形成有由具有比有源层(15)的带隙大的带隙的第一导电类型的半导体晶体形成的光电流阻挡层(19) 。 该结构对于包括p型电流阻挡层的器件特别有用。