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    • 7. 发明授权
    • Method for manufacturing semiconductor laser device and method for inspecting semiconductor laser bar
    • 半导体激光器件的制造方法及半导体激光棒的检查方法
    • US07585689B2
    • 2009-09-08
    • US12196902
    • 2008-08-22
    • Takayuki KashimaKeiji ItoKouji Makita
    • Takayuki KashimaKeiji ItoKouji Makita
    • H01L21/00
    • H01S5/4025H01S5/0201H01S5/2201
    • A method for manufacturing a semiconductor laser device in which a first conductivity type cladding layer, and active layer, a second conductivity type first cladding layer, and a second conductivity type second cladding layer are laminated in this order on a semiconductor substrate by crystal growth, the second conductivity type second cladding layer is processed into a plurality of stripe-shaped ridge structure portions, and a laser bar is formed by cleavage in a direction orthogonal to a longitudinal direction of the ridge structure portions. According to this method, it is possible to provide a method for manufacturing a semiconductor laser device and a method for inspecting a semiconductor laser bar in the manufacturing process, capable of determining for each chip whether or not a deviation of a resonator length is within the tolerance in a simple manner.
    • 一种半导体激光器件的制造方法,其中通过晶体生长在半导体衬底上依次层叠第一导电型包覆层和有源层,第二导电型第一包层和第二导电型第二包覆层, 将第二导电型第二包覆层加工成多个条状的脊状结构部,通过在与脊部结构部的长度方向正交的方向上断裂而形成激光条。 根据该方法,可以提供一种制造半导体激光器件的方法和用于在制造过程中检查半导体激光棒的方法,其能够确定每个芯片是否谐振器长度的偏差是否在 容忍以简单的方式。
    • 8. 发明授权
    • Two-wavelength semiconductor laser device and its fabricating method
    • 双波长半导体激光器件及其制造方法
    • US07809042B2
    • 2010-10-05
    • US12269583
    • 2008-11-12
    • Kouji MakitaTakayuki Kashima
    • Kouji MakitaTakayuki Kashima
    • H01S5/00
    • H01S5/4031B82Y20/00H01S5/162H01S5/2004H01S5/2201H01S5/2231H01S5/3202H01S5/34313H01S5/34326H01S5/4087H01S2301/185
    • A two-wavelength semiconductor laser device includes a first semiconductor laser device including a first-conductivity type first cladding layer, a first guide layer made of AlGaAs mixed crystal, a first quantum well active layer having a barrier layer made of AlGaAs mixed crystal, a second guide layer made of AlGaAs mixed crystal, and a second-conductivity type second cladding layer, and a second semiconductor laser device including a first-conductivity type third cladding layer, a third guide layer made of AlGaInP mixed crystal, a second quantum well active layer having a barrier layer made of AlGaInP mixed crystal, a fourth guide layer made of AlGaInP mixed crystal, and a second-conductivity type fourth cladding layer. At least the barrier layer included in the first quantum well active layer, the first guide layer, and the second guide layer each have an Al molar ratio of more than 0.47 and 0.60 or less.
    • 双波长半导体激光器件包括:第一半导体激光器件,包括第一导电型第一包层,由AlGaAs混晶构成的第一引导层;具有由AlGaAs混晶构成的阻挡层的第一量子阱有源层; 由AlGaAs混晶构成的第二引导层和第二导电型第二覆层,以及包括第一导电型第三覆层,由AlGaInP混晶构成的第三引导层的第二半导体激光器件,第二量子阱活性 具有由AlGaInP混晶构成的阻挡层的层,由AlGaInP混晶构成的第四引导层和第二导电型第四覆层。 至少包含在第一量子阱活性层,第一引导层和第二引导层中的阻挡层各自具有大于0.47和0.60或更小的Al摩尔比。
    • 9. 发明申请
    • TWO-WAVELENGTH SEMICONDUCTOR LASER DEVICE AND ITS FABRICATING METHOD
    • 双波长半导体激光器件及其制造方法
    • US20090180508A1
    • 2009-07-16
    • US12269583
    • 2008-11-12
    • Kouji MAKITATakayuki Kashima
    • Kouji MAKITATakayuki Kashima
    • H01S5/00H01L21/00
    • H01S5/4031B82Y20/00H01S5/162H01S5/2004H01S5/2201H01S5/2231H01S5/3202H01S5/34313H01S5/34326H01S5/4087H01S2301/185
    • A two-wavelength semiconductor laser device includes a first semiconductor laser device including a first-conductivity type first cladding layer, a first guide layer made of AlGaAs mixed crystal, a first quantum well active layer having a barrier layer made of AlGaAs mixed crystal, a second guide layer made of AlGaAs mixed crystal, and a second-conductivity type second cladding layer, and a second semiconductor laser device including a first-conductivity type third cladding layer, a third guide layer made of AlGaInP mixed crystal, a second quantum well active layer having a barrier layer made of AlGaInP mixed crystal, a fourth guide layer made of AlGaInP mixed crystal, and a second-conductivity type fourth cladding layer. At least the barrier layer included in the first quantum well active layer, the first guide layer, and the second guide layer each have an Al molar ratio of more than 0.47 and 0.60 or less.
    • 双波长半导体激光器件包括:第一半导体激光器件,包括第一导电型第一包层,由AlGaAs混晶构成的第一引导层;具有由AlGaAs混晶构成的阻挡层的第一量子阱有源层; 由AlGaAs混晶构成的第二引导层和第二导电型第二覆层,以及包括第一导电型第三覆层,由AlGaInP混晶构成的第三引导层的第二半导体激光器件,第二量子阱活性 具有由AlGaInP混晶构成的阻挡层的层,由AlGaInP混晶构成的第四引导层和第二导电型第四覆层。 至少包含在第一量子阱活性层,第一引导层和第二引导层中的阻挡层各自具有大于0.47和0.60或更小的Al摩尔比。
    • 10. 发明授权
    • Semiconductor laser device and method for manufacturing the same
    • 半导体激光装置及其制造方法
    • US07852898B2
    • 2010-12-14
    • US12235320
    • 2008-09-22
    • Takeshi YokoyamaTakayuki KashimaKouji Makita
    • Takeshi YokoyamaTakayuki KashimaKouji Makita
    • H01S5/00
    • H01S5/162B82Y20/00H01S5/028H01S5/0281H01S5/32316H01S5/34313H01S5/34326H01S5/4031H01S5/4087
    • On a first region that is a part of one main face of a semiconductor substrate 1, a first semiconductor laser structure 10 is formed so as to have a first lower cladding layer 3, a first active layer 4 with a first quantum well structure and first upper cladding layers 5, 7, which are layered in this order from the semiconductor substrate side, thereby forming a first resonator. On a second region that is different from the first region, a second semiconductor laser structure 20 is formed so as to have a second lower cladding layer 13, a second active layer 14 with a second quantum well structure and a second upper cladding layer 15, 17, which are layered in this order, thereby forming a second resonator. End face coating films 31, 32 are formed on facets of the first and the second resonators, and a nitrogen-containing layer 30 is formed between the facets of the first and the second resonators and the facet coating film. In the semiconductor laser device provided with a high-output dual-wavelength lasers that are formed monolithically, the decrease of the COD level during the high-output operation of the laser can be suppressed.
    • 在作为半导体基板1的一个主面的一部分的第一区域上,形成第一半导体激光结构体10,具有第一下部包层3,具有第一量子阱结构的第一有源层4和第一 上覆层5,7,其从半导体衬底侧依次层叠,从而形成第一谐振器。 在与第一区域不同的第二区域上形成第二半导体激光器结构20,以具有第二下部包层13,具有第二量子阱结构的第二有源层14和第二上部包层15, 17,其按顺序分层,从而形成第二谐振器。 端面涂膜31,32形成在第一和第二谐振器的小面上,并且在第一和第二谐振器的小面和小面涂膜之间形成含氮层30。 在具有单片形成的高输出双波长激光器的半导体激光装置中,能够抑制激光器的高输出运转时的COD电平的降低。