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    • 2. 发明专利
    • Method for making photonic crystal and method for making surface emitting laser
    • 制造光子晶体的方法和制备表面发射激光的方法
    • JP2013197574A
    • 2013-09-30
    • JP2012066716
    • 2012-03-23
    • Canon Incキヤノン株式会社
    • HOSHINO KATSUYUKI
    • H01S5/183H01L21/205
    • H01L21/36B82Y20/00G02B6/1225H01L21/02389H01L21/02458H01L21/0254H01L21/02603H01L21/0262H01L21/02639H01L21/02647H01S5/105H01S5/183H01S5/30H01S5/34333H01S2304/00
    • PROBLEM TO BE SOLVED: To provide a method for making photonic crystals, capable of forming air gaps at the bottoms thereof, when such photonic crystals are made of semiconductors to which wet etching cannot be applied.SOLUTION: A method for making photonic crystals comprises: a first step for forming a protective mask 101 including an opening pattern having openings for selective growth on a surface of a substrate; a second step for allowing columnar semiconductors 120 to selectively grow from exposed portions, where the protective mask is not formed, of the surface of the substrate, and allowing a semiconductor layer to grow on the protective mask in a lateral direction so as to cover the protective mask; a third step for forming photonic crystals 130 on the semiconductor layer so that at least part of the openings of the opening pattern and at least part of vacancies or grooves which form the photonic crystals 130 are layered on the semiconductor layer when seen from the surface of the substrate in a vertical direction; a fourth step for removing at least part of the columnar semiconductors; and a fifth step for removing at least part of the protective mask.
    • 要解决的问题:提供一种制造光子晶体的方法,其能够在其底部形成气隙,当这种光子晶体由不能应用湿蚀刻的半导体制成时。解决方案:制造光子晶体的方法包括: 用于形成包括在基板的表面上具有用于选择性生长的开口的开口图案的保护掩模101的第一步骤; 允许柱状半导体120从衬底的表面的未形成保护掩模的露出部分选择性地生长,并允许半导体层在保护掩模上沿横向生长以覆盖 防护面具; 用于在半导体层上形成光子晶体130的第三步骤,使得当从半导体层的表面观察时,形成光子晶体130的至少部分开口图案的开口和形成光子晶体130的空位或凹槽的层叠在半导体层上 基板在垂直方向; 用于去除至少部分柱状半导体的第四步骤; 以及用于去除至少一部分防护罩的第五步骤。
    • 8. 发明专利
    • Optical semiconductor element and optical semiconductor element manufacturing method
    • 光学半导体元件和光学半导体元件制造方法
    • JP2013162085A
    • 2013-08-19
    • JP2012025264
    • 2012-02-08
    • Fujitsu Ltd富士通株式会社
    • UETAKE MASATOTAKABAYASHI KAZUMASA
    • H01L31/0232H01S5/026
    • G02B6/12G02B6/12004G02B6/1228H01L21/36H01S5/0268H01S5/1014
    • PROBLEM TO BE SOLVED: To provide an optical semiconductor element for restraining a light coupling loss due to a difference of spot sizes.SOLUTION: An optical semiconductor integrated element 10 comprises: a waveguide part 34 formed on a semiconductor substrate having a (100) face, and having a core layer for propagating light; a spot size conversion part 11a formed on the semiconductor substrate, optically connected to the waveguide part 34, and converting a diameter of light to be propagated; and a pair of terrace parts 11b formed on the semiconductor substrate, and opposed to each other to hold the spot size conversion part 11a. Opposite parts 11c of the pair of terrace parts 11b to hold the spot size conversion part 11a have a varying interval therebetween, and have a portion inclined in a [0-11] direction to a [011] direction. A position of an upper end of the spot size conversion part 11a is higher than the position of the upper end of the waveguide part 34.
    • 要解决的问题:提供一种用于抑制由于光斑尺寸差异引起的光耦合损耗的光半导体元件。解决方案:光半导体集成元件10包括:形成在具有(100)面的半导体衬底上的波导部分34 并具有用于传播光的芯层; 形成在半导体基板上的光斑尺寸转换部分11a,光学连接到波导部分34,并且转换要传播的光的直径; 以及形成在半导体基板上并且彼此相对以保持光斑尺寸转换部分11a的一对平台部分11b。 用于保持光斑尺寸转换部分11a的一对露台部分11b的相对部分11c在它们之间具有变化的间隔,并且具有沿[0-11]方向倾斜到[011]方向的部分。 光点尺寸转换部分11a的上端的位置高于波导部分34的上端的位置。