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    • 11. 发明授权
    • Semi-open liquid phase epitaxial growth system
    • 半开放液相外延生长系统
    • US4315477A
    • 1982-02-16
    • US214548
    • 1980-12-09
    • Cheng-Chi WangAugust H. B. Vanderwyck
    • Cheng-Chi WangAugust H. B. Vanderwyck
    • C30B19/04C30B19/06H01L7/00
    • C30B19/061C30B19/04C30B29/48Y10S117/907Y10S438/909Y10S438/971
    • Disclosed is a semi-open method of growing an epitaxial HgCdTe layer on a CdTe substrate, including the steps of placing the CdTe substrate and a growth solution of Hg, Cd, and Te within a pressure and temperature controlled container, flowing an inert gas under pressure through the container to reduce the vaporization of Hg from the solution, establishing a cooling zone within the container to condense Hg vaporized from the solution, increasing the temperature of the solution for a time sufficient to react the Hg and Cd with the Te in the solution, reducing the temperature of the solution, establishing contact between the solution and the substrate, maintaining the solution at a temperature sufficient to melt the substrate for a time sufficient to eliminate a Hg vapor diffused layer, reducing the temperature of the solution to near the saturation temperature, and reducing the temperature of the solution at a rate sufficient to cause the solution to crystallize in an HgCdTe layer on the CdTe substrate.
    • 公开了一种在CdTe基板上生长外延HgCdTe层的半开放方法,包括以下步骤:将CdTe基板和Hg,Cd和Te的生长溶液放置在压力和温度受控的容器内,使惰性气体流过 压力通过容器以减少Hg从溶液的蒸发,在容器内建立冷却区以冷凝从溶液蒸发的Hg,使溶液的温度升高足以使Hg和Cd与Te反应的时间 溶液,降低溶液的温度,建立溶液与基底之间的接触,将溶液保持在足以熔化基底的温度足以消除Hg蒸气扩散层的时间,将溶液的温度降低到接近 饱和温度,并以足以使溶液在第二次HgCdTe层中结晶的速率降低溶液的温度 e CdTe基板。
    • 16. 发明授权
    • Titanyl phthalocyanine, method for production thereof and electrophotographic photoreceptor containing the same
    • 酞菁钛,其制备方法和含有它的电子照相感光体
    • US06284420B1
    • 2001-09-04
    • US09492872
    • 2000-01-26
    • Jia-Ming LiuKuo-Tung HuangChiang-Yun LeeMei-Tyz PengCheng-Chi WangRong-Ming Ke
    • Jia-Ming LiuKuo-Tung HuangChiang-Yun LeeMei-Tyz PengCheng-Chi WangRong-Ming Ke
    • G03G1502
    • C09B67/0026C09B67/0016G03G5/0696
    • A peroxide-modified titanyl phthalocyanine for use in preparing charge generating layer of a photoreceptor is disclosed. The peroxide-modified titanyl phthalocyanine is obtained by subjecting titanyl phthalocyanine to a peroxide-induced complexation-mediated crystal transformation at a low temperature. The peroxide-modified titanyl phthalocyanine is characterized by having Bragg diffraction angles of 7.3, 9.4, 14.0, 24.1, 25.7, 27.2 and 28.5 degrees, and vibrational absorption resonances at 1486 cm (superscript: −1), 1420 cm (superscript: −1), 1134 cm (superscript: −1), 1078 cm (superscript: −1), 966 cm (superscript: −1), 900 cm (superscript: −1), 762 cm (superscript: −1) and 736 cm (superscript: −1). The photoreceptor exhibits excellent photosensitivity at wavelengths in the near-infrared range and has a unique crystal form, especially the peroxide-modified titanyl phthalocyanine shows a higher distinct absorption peak at the wavelength of 780 nm.
    • 公开了用于制备感光体的电荷产生层的过氧化物修饰的氧钛酞菁。 过氧化物修饰的氧钛酞菁通过在低温下经过氧化钛诱导的络合介导的晶体转变而得到。 过氧化物修饰的氧钛酞菁的特征在于布拉格衍射角为7.3,9.4,14.0,24.1,25.7,27.2和28.5度,1486cm(上标:-1),1420cm(上标:-1)的振动吸收共振 ),1134cm(上标:-1),1078cm(上标:-1),966cm(上标:-1),900cm(上标:-1),762cm(上标:-1)和736cm 上标:-1)。 感光体在近红外范围的波长处表现出优异的光敏性,并且具有独特的晶体形式,特别是过氧化物修饰的氧钛酞菁在780nm波长处显示出更高的不同吸收峰。
    • 20. 发明授权
    • Method of making an infrared detector
    • 制作红外探测器的方法
    • US5192695A
    • 1993-03-09
    • US727402
    • 1991-07-09
    • Cheng-Chi WangYet-Zen LiuMuren Chu
    • Cheng-Chi WangYet-Zen LiuMuren Chu
    • H01L31/109H01L31/18
    • H01L31/1832H01L31/109Y10S148/031Y10S438/936
    • HgCdTe semiconductor material having an n-type epitaxial layer is grown on a substrate. A graded p-type epitaxial layer is grown on the n-type layer. The p-type layer is graded such that the large bandgap region is adjacent the heterojunction with the narrow bandgap region at the surface of this layer. The periphery of the p-type layer is then etched to expose the large bandgap material. A HgCdTe passivation layer may then be formed on the p-type layer. A resultant structure is then mesa etched. A metal, such as indium, is formed along the walls of the mesa structure. Indium is selected to form a good ohmic contact with the n-type layer and a Schottky barrier with the large bandgap exposed edge of the p-type layer. In this way, the PN junction is passivated at the large bandgap material. The remaining narrow bandgap material in the p-type will form a good ohmic contact to a metal contact formed on this layer.
    • 具有n型外延层的HgCdTe半导体材料生长在基板上。 渐变的p型外延层生长在n型层上。 p型层被分级,使得大的带隙区域与该层表面处的窄带隙区域的异质结相邻。 然后蚀刻p型层的周边以暴露大的带隙材料。 然后可以在p型层上形成HgCdTe钝化层。 然后将得到的结构台面蚀刻。 沿着台面结构的壁形成诸如铟的金属。 选择铟以与n型层形成良好的欧姆接触,并且形成具有p型层的大带隙暴露边缘的肖特基势垒。 以这种方式,PN结在大的带隙材料上被钝化。 p型中剩余的窄带隙材料将与形成在该层上的金属接触形成良好的欧姆接触。