Circuit-integrated light-receiving device
    3.
    发明授权
    Circuit-integrated light-receiving device 有权
    电路集成光接收装置

    公开(公告)号:US06313484B1

    公开(公告)日:2001-11-06

    申请号:US09472886

    申请日:1999-12-28

    IPC分类号: H01L2715

    CPC分类号: H01L27/1443

    摘要: A circuit-integrated light-receiving device of the present invention includes: a semiconductor substrate of a first conductivity type; a first semiconductor crystal growth layer of the first conductivity type provided on a surface of the semiconductor substrate, wherein the first semiconductor crystal growth layer includes a first portion whose impurity concentration gradually decreases in a direction away from the surface of the semiconductor substrate and a second portion located in a first region above the first portion whose impurity concentration distribution is uniform in a depth direction; a buried diffusion layer of the first conductivity type located in a second region which is above the first portion of the first semiconductor crystal growth layer and does not overlap the first region; a second semiconductor crystal growth layer of a second conductivity type which is provided across a surface of the first semiconductor crystal growth layer and a surface of the buried diffusion layer; and a separation diffusion region having the first conductivity type for dividing the second semiconductor crystal growth layer into a light-receiving device section and a signal processing circuit section. The first region is located in the light-receiving device section. In the signal processing circuit section, the buried diffusion layer is in contact with the first portion of the first semiconductor crystal growth layer.

    摘要翻译: 本发明的电路集成光接收装置包括:第一导电类型的半导体衬底; 设置在所述半导体衬底的表面上的第一导电类型的第一半导体晶体生长层,其中所述第一半导体晶体生长层包括其杂质浓度在远离所述半导体衬底的表面的方向上逐渐减小的第一部分,以及第二半导体晶体生长层 位于第一部分上方的第一部分的部分,其杂质浓度分布在深度方向上是均匀的; 位于第一半导体晶体生长层的第一部分之上并且不与第一区域重叠的第二区域中的第一导电类型的掩埋扩散层; 设置在第一半导体晶体生长层的表面和掩埋扩散层的表面之间的第二导电类型的第二半导体晶体生长层; 以及具有第一导电类型的分离扩散区域,用于将第二半导体晶体生长层分割成光接收装置部分和信号处理电路部分。 第一区域位于光接收装置部分中。 在信号处理电路部中,埋入扩散层与第一半导体晶体生长层的第一部分接触。

    C-TERMINUS MODIFICATION METHOD, C-TERMINUS IMMOBILIZATION METHOD AND ANALYSIS METHOD FOR PROTEIN OR PEPTIDE
    4.
    发明申请
    C-TERMINUS MODIFICATION METHOD, C-TERMINUS IMMOBILIZATION METHOD AND ANALYSIS METHOD FOR PROTEIN OR PEPTIDE 审中-公开
    C-末端修饰方法,蛋白质或肽的C-末端固定化方法和分析方法

    公开(公告)号:US20090325227A1

    公开(公告)日:2009-12-31

    申请号:US12090747

    申请日:2006-10-23

    IPC分类号: C12P21/00 C07K1/107 G01N33/68

    摘要: The present invention provides a method for inexpensively, easily and efficiently modifying the C-terminus of a protein or peptide; a method for easily and reliably isolating a C-terminal peptide fragment of a protein or peptide; and a method for rapidly, accurately and reliably determining an amino acid sequence of a protein or peptide by using a mass spectroscope. A method comprising the step of adding a formylation reagent and a catalyst to a protein or peptide to convert a carboxyl group into an aldehyde group. A method comprising the step of reacting a nucleophilic reagent with the aldehyde group to modify the C-terminus of the protein or peptide. A method comprising the step of reacting a support having a nucleophilic group to immobilize the protein or peptide. A method comprising the step of fragmenting the immobilized protein or peptide, washing the support, and isolating the C-terminal peptide fragment from the support. A method comprising the step of subjecting the isolated C-terminal peptide fragment to mass spectrometry and determining an amino acid sequence.

    摘要翻译: 本发明提供了一种廉价,容易且有效地修饰蛋白质或肽的C末端的方法; 容易且可靠地分离蛋白质或肽的C末端肽片段的方法; 以及通过使用质谱仪快速,准确,可靠地测定蛋白质或肽的氨基酸序列的方法。 一种方法,其包括将甲酰化试剂和催化剂加入到蛋白质或肽中以将羧基转化为醛基的步骤。 一种包括使亲核试剂与醛基反应以修饰蛋白质或肽的C末端的步骤的方法。 一种包括使具有亲核基团的载体反应以固定蛋白质或肽的方法。 一种方法,其包括将固定的蛋白质或肽片段化,洗涤载体和从载体中分离C末端肽片段的步骤。 一种方法,包括使分离的C-末端肽片段进行质谱分析和测定氨基酸序列的步骤。