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    • 1. 发明授权
    • Preparation process of compound semiconductor
    • 化合物半导体的制备工艺
    • US4767494A
    • 1988-08-30
    • US909287
    • 1986-09-19
    • Naoki KobayashiToshiki MakimotoYoshiji Horikoshi
    • Naoki KobayashiToshiki MakimotoYoshiji Horikoshi
    • C30B25/02H01L21/205H01L21/365
    • C30B25/02C30B29/40C30B29/48C30B29/68H01L21/02395H01L21/02463H01L21/02505H01L21/02546H01L21/02551H01L21/02576H01L21/02579H01L21/0262
    • A compound semiconductor thin film is formed by growing a plurality of molecular layers one over another. According to the present invention, while a carrier gas and a small quantity of hydride containing an element in Group V or VI are normally flowed, an organometallic compound which is diluted with hydrogen and which contains an element in Group III or II and a hydride which is diluted with hydrogen and which contains an element in Group V or VI are alternately introduced over a substrate so that an atomic layer of an element in Group III or II and an atomic layer of an element in Group V or VI are alternately grown over the substrate. According to this method, grown layers having a high degree of purity can be obtained. A portion such as a Ga-Ga two-layer structure formed in the growth of a surface of an element in Group III or II can easily be eliminated by the introduction of a hydrogen halide so that the surface defects and deep levels are significantly decreased and perfect crystals can be obtained. According to the present invention, a high-concentration doping of a III-V compound semiconductor becomes possible. The method of the present invention is advantageous in the fabrication of high-speed FETs and multi-quantum-well lasers using compound semiconductors.
    • 化合物半导体薄膜通过使多个分子层彼此生长而形成。 根据本发明,载体气体和少量含有第V或VI族元素的氢化物通常流动,用氢稀释并含有III或II族元素的有机金属化合物和氢化物 用氢稀释,并且含有V或VI族中的元素交替引入衬底上,使得III或II族元素的原子层和V或VI族元素的原子层交替生长在 基质。 根据该方法,可以得到高纯度的生长层。 通过引入卤化氢可以容易地消除在III或II族元素的表面生长中形成的Ga-Ga两层结构的部分,使得表面缺陷和深度水平显着降低, 可以获得完美的晶体。 根据本发明,III-V族化合物半导体的高浓度掺杂是可能的。 本发明的方法在制造使用复合半导体的高速FET和多量子阱激光器方面是有利的。
    • 4. 发明授权
    • Semiconductor device for detecting electromagnetic radiation or particles
    • 用于检测电磁辐射或颗粒的半导体器件
    • US4775881A
    • 1988-10-04
    • US14197
    • 1987-02-13
    • Klaus PloogYoshiji Horikoshi
    • Klaus PloogYoshiji Horikoshi
    • H01L31/10H01L31/0352H01L31/09H01L31/111
    • B82Y20/00H01L31/035263H01L31/111
    • A semiconductor device of the doping superlattice type for detecting electromagnetic radiation or particles comprises a semi-insulating substrate (10), a first layer (11) of either n-type or p-type conductivity deposited thereon, a plurality of layers (12, 13, 14) of alternating conductivity types deposited in series on said first layer (11), a strongly p-type electrode region which extends through said p-type and n-type layers (11, 12, 13, 14) and defines a first selective electrode (15), and a strongly n-type electrode region which also extends through said p-type and n-type layers (11, 12, 13, 14), and which is spaced apart from said strongly p-type region and defines a second selective electrode. The device is a homogeneous semiconductor in which the n-type and p-type layers other than the first layer (11) and the outermost layer (14)have substantially identical thicknesses and doping concentrations. The first layer (11) and the outermost layer (14) are of the same conductivity type and have a thickness substantially equal to one half of the thickness of each of the other layers (12, 13). Furthermore, the first layer and the outermost layer have a doping concentration substantially identical to the doping concentration of the other layers. This makes it possible to completely deplete the entire structure thus a high reverse bias can be applied to the device thereby tilting the resultant electric field with respect to the layers. A device of this kind is particularly suited for use as an optical detector in the infrared wavelength region around 1 .mu.m and longer. The device has low dark current at room temperature, a very small capacitance and therefore a fast response time.
    • 用于检测电磁辐射或粒子的掺杂超晶格型的半导体器件包括半绝缘衬底(10),沉积在其上的n型或p型导电体的第一层(11),多层(12, 串联沉积在所述第一层(11)上的交替导电类型的强p型电极区域,延伸穿过所述p型层和n型层(11,12,13,14)并限定一个 第一选择电极(15)和还延伸穿过所述p型和n型层(11,12,13,14)的强n型电极区,并且与所述强p型区域 并限定第二选择电极。 器件是均匀的半导体,其中除了第一层(11)和最外层(14)之外的n型和p型层具有基本相同的厚度和掺杂浓度。 第一层(11)和最外层(14)具有相同的导电类型,并且具有基本上等于其它层(12,13)的厚度的一半的厚度。 此外,第一层和最外层具有与其它层的掺杂浓度基本相同的掺杂浓度。 这使得可以完全耗尽整个结构,从而可以向器件施加高的反向偏压,从而相对于层倾斜所得的电场。 这种装置特别适用于大约1米及以上的红外波长区域的光检测器。 该器件在室温下具有低暗电流,非常小的电容,因此响应时间快。
    • 5. 发明授权
    • Apparatus for epitaxially growing a laminate semiconductor layer in
liquid phase
    • 用于在液相中外延生长层压半导体层的装置
    • US4013040A
    • 1977-03-22
    • US639713
    • 1975-12-11
    • Yoshiji Horikoshi
    • Yoshiji Horikoshi
    • C30B19/00C30B19/06C30B19/10H01L21/208B05C3/09
    • C30B19/10C30B19/063
    • Apparatus for epitaxially growing a laminate semiconductor layer in liquid phase on the crystalline surface of a substrate by successively bringing different kinds of liquid phase epitaxial growth solution into contact with the surface of a substrate, which is characterized in that different kinds of liquid phase epitaxial growth solutions are injected one after another into solution receptacle, the bottom of which is open to the substrate surface, and each of the preceding one of the epitaxial growth solutions is expelled from the solution receptacle by each succeeding one of the epitaxial growth solutions for interchange between both solutions and thereafter each succeeding solution is epitaxially grown on the preceding one.
    • 通过连续地使不同种类的液相外延生长溶液与基板的表面接触,在基板的晶体表面上外延生长液相层压半导体层的装置,其特征在于不同种类的液相外延生长 溶液一个接一个地注入溶液容器中,溶液容器的底部向基底表面开口,并且每个外延生长溶液中的每一个都由每个后续的一个外延生长溶液从溶液容器中排出,用于在 两种溶液和其后每种后续溶液在前一种方法外延生长。