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    • 21. 发明授权
    • Method for producing group III nitride compound semiconductor
    • III族氮化物半导体的制造方法
    • US06860943B2
    • 2005-03-01
    • US10268998
    • 2002-10-11
    • Masayoshi KoikeHiroshi Watanabe
    • Masayoshi KoikeHiroshi Watanabe
    • C30B29/38C30B25/02H01L21/20H01L21/205H01L29/201H01S5/323H01S5/343C30B25/04C30B25/14
    • C30B25/02C30B29/403C30B29/406H01L21/0237H01L21/02458H01L21/0254H01L21/0262H01L21/02639H01L21/02647H01L21/02658H01L33/007
    • Disclosed is a method for producing a Group III nitride compound semiconductor including a pit formation step in which a portion of an uppermost layer of a first Group III nitride compound semiconductor layer containing one or more sub-layers, the portion containing lattice defects, is subjected to treatment by use of a solution or vapor which corrodes the portion more easily than it corrodes a portion of the uppermost layer containing no lattice defects, the first Group III nitride compound semiconductor layer not being accompanied by a substrate therefor as a result of removal therefrom, or being accompanied by a substrate such that the semiconductor layer is formed with or without intervention of a buffer layer provided on the substrate; and a lateral growth step of growing a second Group III nitride compound semiconductor layer through vertical and lateral epitaxial overgrowth around nuclei as seeds for crystal growth which are on flat portions of the uppermost layer of the first Group III nitride compound semiconductor layer, but not on portions of the uppermost layer that define pits formed through the pit formation step.
    • 公开了一种制造含有凹坑形成步骤的III族氮化物化合物半导体的方法,其中包含一个或多个子层的第一III族氮化物化合物半导体层的最上层部分,包含晶格缺陷的部分被施加 通过使用比不腐蚀不含有晶格缺陷的最上层的一部分腐蚀该部分的溶液或蒸汽来进行处理,因此第一III族氮化物化合物半导体层不伴随其底物而被附着于其上 或伴随着衬底,使得半导体层形成有或没有介于设置在衬底上的缓冲层; 以及横向生长步骤,其通过垂直和横向外延过生长生长第二III族氮化物化合物半导体层,所述第三III族氮化物化合物半导体层作为晶体生长的晶种,其在第一III族氮化物半导体层的最上层的平坦部分上但不在 限定通过凹坑形成步骤形成的凹坑的最上层的部分。
    • 22. 发明授权
    • Group III nitride compound semiconductor element and method for producing the same
    • III族氮化物化合物半导体元件及其制造方法
    • US06716655B2
    • 2004-04-06
    • US10160288
    • 2002-06-04
    • Seiji NagaiMasayoshi KoikeKazuyoshi Tomita
    • Seiji NagaiMasayoshi KoikeKazuyoshi Tomita
    • H01L3304
    • C30B23/02C30B25/02C30B25/18C30B29/403C30B29/406H01L21/02381H01L21/02433H01L21/02458H01L21/0254H01L21/02639H01L33/007
    • An object of the invention is to produce, at high efficiency, semiconductor elements which are formed of a high-quality crystalline semiconductor having no cracks and a low dislocation density and which have excellent characteristics. Specifically, a mask formed from SiO2 film is provided on the Si(111) plane of an n-type silicon substrate, and a window portion (crystal growth region) in the shape of an equilateral triangle having a side of approximately 300 &mgr;m is formed through the mask. The three sides of the equilateral triangle are composed of three edges; each edge defined by the (111) plane and another crystal plane that is cleavable. Subsequently, a multi-layer structure of semiconductor crystals in an LED is formed through crystal growth of a Group III nitride compound semiconductor. Thus, limiting the area of one crystal growth region to a considerably small area weakens a stress applied to a semiconductor layer, thereby readily producing semiconductor elements having excellent crystallinity. In addition, semiconductor elements can be arranged in a semiconductor wafer at high packing density without loss, and each side of these semiconductor elements can be readily arranged in a line on a semiconductor wafer, thereby enhancing quality, yield, productivity, etc. of semiconductor elements.
    • 本发明的目的是高效率地制造由没有裂纹和位错密度低且具有优异特性的高品质结晶半导体形成的半导体元件。 具体地,在n型硅衬底的Si(111)面上设置由SiO 2膜形成的掩模,并且形成具有约300μm侧面的等边三角形形状的窗口部分(晶体生长区域) 通过面具。 等边三角形的三面由三边组成, 每个边缘由(111)面和另一个可切割的晶体平面限定。 随后,通过III族氮化物化合物半导体的晶体生长,形成LED中的半导体晶体的多层结构。 因此,将一个晶体生长区域的面积限制在相当小的面积上,削弱施加到半导体层的应力,从而容易地制造具有优异结晶度的半导体元件。 此外,半导体元件可以以高封装密度无损耗地布置在半导体晶片中,并且这些半导体元件的每一侧可以容易地布置在半导体晶片上的线上,从而提高半导体的质量,产量,生产率等 元素。
    • 29. 发明授权
    • Method of forming nitride film and nitride structure
    • 形成氮化物膜和氮化物结构的方法
    • US07943492B2
    • 2011-05-17
    • US11790125
    • 2007-04-24
    • Jaeun YooHyung Soo AhnMin YangMasayoshi Koike
    • Jaeun YooHyung Soo AhnMin YangMasayoshi Koike
    • H01L21/20
    • C30B29/406C30B25/02H01L21/0237H01L21/0254H01L21/02543H01L21/02576H01L21/0262
    • A method of forming a nitride film by hydride vapor phase epitaxy, the method including: sequentially disposing at least one group III metal source including impurities and a substrate in an external reaction chamber and an internal reaction chamber sequentially located in the direction of gas supply and heating each of the external reaction chamber and the internal reaction chamber at a growth temperature; forming a metal chloride by supplying hydrogen chloride gas and carrier gas into the external reaction chamber to react with the group III metal source and transferring the metal chloride to the substrate; and forming the nitride film doped with the impurities on the substrate by reacting the transferred metal chloride with nitrogen source gas supplied to the internal reaction chamber.
    • 一种通过氢化物气相外延形成氮化物膜的方法,所述方法包括:在外部反应室和依次位于气体供给方向上的内部反应室中依次配置至少一种包括杂质的III族金属源和基板, 在生长温度下加热外部反应室和内部反应室; 通过向外部反应室中供应氯化氢气体和载气而与III族金属源反应并将金属氯化物转移到基底上形成金属氯化物; 以及通过使转移的金属氯化物与供应到内部反应室的氮源气体反应,在衬底上形成掺杂有杂质的氮化物膜。