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    • 6. 发明专利
    • Nitride semiconductor laser element and manufacturing method thereof
    • 氮化物半导体激光元件及其制造方法
    • JP2008294053A
    • 2008-12-04
    • JP2007135375
    • 2007-05-22
    • Sharp Corpシャープ株式会社
    • YAMAMOTO HIDEICHIRO
    • H01S5/323H01S5/343
    • PROBLEM TO BE SOLVED: To provide a nitride semiconductor laser element that has a current constriction structure, which is excellent in crystallinity of a regrowth layer (third layer) formed on a current constriction layer (second layer) and has excellent current stopping characteristics, and then has element characteristics and reliability improved, and to provide a manufacturing method thereof.
      SOLUTION: Disclosed are the nitride semiconductor laser element which has a laminate structure including a first layer (108), a second layer (109) formed on the first layer (108) and having an opening portion, and a third layer (110) formed in the opening portion and on the second layer (109) on a substrate (101), the second layer (109) being made of polycrystal Al
      x Ga
      1-x-y In
      y N (0≤x, y, x+y≤1) aligned to a normal vector of a main surface of the substrate (101); and the manufacturing method thereof.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种具有电流收缩结构的氮化物半导体激光元件,该电流收缩结构在形成在电流收缩层(第二层)上的再生长层(第三层)的结晶度优异并具有优异的电流停止 特性,然后提高元件特性和可靠性,并提供其制造方法。 解决方案:公开了具有叠层结构的氮化物半导体激光元件,该叠层结构包括形成在第一层(108)上并具有开口部分的第一层(108),第二层(109)和第三层 110),其形成在基板(101)的开口部分和第二层(109)上,第二层(109)由多晶Al x SB- 与衬底(101)的主表面的法线矢量对准的SB> In y(N≤0,0≤x,y,x +y≤1); 及其制造方法。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Nitride semiconductor laser element, and manufacturing method therefor
    • 氮化物半导体激光元件及其制造方法
    • JP2006165421A
    • 2006-06-22
    • JP2004357705
    • 2004-12-10
    • Sharp Corpシャープ株式会社
    • YAMAMOTO HIDEICHIROKONDO MASAFUMI
    • H01S5/223H01L21/3065H01S5/323
    • PROBLEM TO BE SOLVED: To provide a nitride semiconductor laser element and the manufacturing method therefor, whereby when etching a nitride semiconductor using a dry etching apparatus, the ridge structure, etc. of desired dimensions and shapes are so formed as to be able to create the nitride semiconductor laser element without variations in its various characteristics and with a high yield.
      SOLUTION: In the manufacturing method of a nitride semiconductor laser element, the lights having specific wavelengths and emitted from the atoms and the molecules which are constituted out of elements contained in an etching gas are detected, among the emission spectrums, emitted from a plasma generated in the reaction chamber of an etching apparatus. Alternatively, the lights are detected, having specific wavelengths and emitted from the molecules which are constituted out of elements, contained in the etching gas and omitted out of the elements constituting nitride semiconductor thin films. Subsequently, by observing the time variations of the intensities of the lights, their etchings can be stopped accurately, at the desired positions of the nitride semiconductor thin films being positioned.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种氮化物半导体激光元件及其制造方法,其中当使用干蚀刻装置蚀刻氮化物半导体时,所需尺寸和形状的脊结构等形成为 能够产生氮化物半导体激光元件,而其各种特性的变化并且以高产率。 解决方案:在氮化物半导体激光元件的制造方法中,从发射光谱中检测出从发射光谱中发射的具有特定波长并从原子和分子发射的光,其由包含在蚀刻气体中的元素构成, 在蚀刻装置的反应室中产生的等离子体。 或者,检测出具有特定波长并从包含在蚀刻气体中的由元素构成的分子发射并在构成氮化物半导体薄膜的元素中省略的光。 随后,通过观察光的强度的时间变化,可以在氮化物半导体薄膜定位的期望位置处精确地停止其蚀刻。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Nitride semiconductor laser device
    • 氮化物半导体激光器件
    • JP2005216990A
    • 2005-08-11
    • JP2004019330
    • 2004-01-28
    • Sharp Corpシャープ株式会社
    • YAMAMOTO HIDEICHIRO
    • H01S5/16H01S5/323H01S5/343
    • PROBLEM TO BE SOLVED: To provide a nitride semiconductor laser device which is stable in a high-power operation, suppresses the occurrence of COD (catastrophic optical damage) to prevent the deterioration of an end face, and has fine optical output characteristics.
      SOLUTION: The nitride semiconductor laser device comprises a nitride semiconductor laser element which has a nitride semiconductor lamination consisting of a board and a plurality of nitride semiconductor layers formed on the board. The board is made of a nitride semiconductor, and the end faces of the laser element in the direction of a resonator are coated with a protective film made of an insulating material. At least one of the end faces of the laser element has current blocking areas in which no current flows, and the total length of the current blocking areas is 20% or less of the length of the resonator, or 200 μm or less. Thus, the nitride semiconductor laser element with the current blocking areas suppresses thermal or optical damage to the end face, makes the laser device stable in a high-power operation, and prevents the COD and the deterioration of the end face.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供在大功率操作中稳定的氮化物半导体激光器件,抑制COD(灾难性光学损伤)的发生以防止端面的劣化,并且具有良好的光输出特性 。 解决方案:氮化物半导体激光器件包括氮化物半导体激光元件,其具有由板和形成在板上的多个氮化物半导体层组成的氮化物半导体层叠体。 该板由氮化物半导体制成,并且激光元件在谐振器的方向上的端面涂覆有由绝缘材料制成的保护膜。 激光元件的至少一个端面具有没有电流流过的电流阻挡区域,并且电流阻挡区域的总长度为谐振器的长度的20%以下,或200μm以下。 因此,具有电流阻挡区域的氮化物半导体激光元件抑制端面的热或光损伤,使得激光器件在大功率操作中稳定,并且防止了端面的COD和劣化。 版权所有(C)2005,JPO&NCIPI