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    • 51. 发明授权
    • Semiconductor device and a method of manufacturing the same
    • 半导体装置及其制造方法
    • US08432013B2
    • 2013-04-30
    • US13019359
    • 2011-02-02
    • Yasuhiko Onishi
    • Yasuhiko Onishi
    • H01L29/78
    • H01L29/66712H01L29/0619H01L29/0634H01L29/0638H01L29/0696H01L29/0878H01L29/402H01L29/404H01L29/7811H01L29/7813H01L29/8611
    • A semiconductor device is provided with a peripheral region that has a narrow width and exhibits good electric field relaxation and high robustness against induced charges. The device has an active region for main current flow and a peripheral region surrounding the active region on a principal surface of a semiconductor substrate of a first conductivity type. The peripheral region has a guard ring of a second conductivity type composed of straight sections and curved sections connecting the straight sections formed in a region of the principal surface surrounding the active region, and a pair of polysilicon field plates in a ring shape formed separately on inner and outer circumferential sides of the guard ring. The surface of the guard ring and the pair of polysilicon field plates of the inner circumferential side and the outer circumferential side are electrically connected with a metal film in the curved section.
    • 半导体器件设置有具有窄宽度并且表现出良好的电场弛豫和对诱导电荷的高鲁棒性的外围区域。 该器件具有用于主电流的有源区和围绕第一导电类型的半导体衬底的主表面上的有源区的周边区。 周边区域具有由直线部分构成的第二导电类型的保护环和连接形成在有源区周围的主表面的区域中的直线部分的弯曲部分,以及分别形成为环状的一对多晶硅场板 保护环的内周侧和外周侧。 保护环的表面和内周侧和外周侧的一对多晶硅场板与弯曲部中的金属膜电连接。
    • 55. 发明授权
    • Cationic graft-copolymer
    • 阳离子接枝共聚物
    • US4816540A
    • 1989-03-28
    • US62364
    • 1987-06-12
    • Yasuhiko Onishi
    • Yasuhiko Onishi
    • C08F251/00C08G18/00
    • C08F251/00
    • A cationic graft-copolymer comprising a unit derived from a cationic derivative of a water-soluble linear polymers having a hydroxyl groups, namely, a cationic polysaccharide of the following formula (1)[C.sub.6 H.sub.7 O.sub.2 (OH).sub.3-a (OX).sub.a ].sub.x H.sub.2 O (1)and the cationic derivative of polyvinylalcohol of the following formula (2) or the cationic derivative of the partial hydrolyzed polyvinylalcohol of the following formula (3)[CH.sub.2 CH(OH).sub.1-b (OX).sub.b ].sub.n (2)[CH.sub.2 CH(OH).sub.1-b-c (OX).sub.b (OAc).sub.c ].sub.n (3)and a unit derived from a polymerizable olefin compound of the following formula (4) ##STR1## (a, x, b, n, c, Ac, X, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are defined in claim 1-4); a process for preparing the same and a latex reagent made therefrom.
    • 包含衍生自具有羟基的水溶性线性聚合物的阳离子衍生物的单元的阳离子接枝共聚物,即下式(1)的阳离子多糖[C6H7O2(OH)3-a(OX)a] xH 2 O(1)和下式(2)的聚乙烯醇的阳离子衍生物或下式(3)的部分水解聚乙烯醇的阳离子衍生物[CH2CH(OH)1-b(OX)b] n(2) (4)(a,x,b,c)中的[CH 2 CH(OH)1-bc(OX)b(OAc)c] n(3)和衍生自下述可聚合烯烃化合物的单元 n,c,Ac,X,R4,R5,R6和R7如权利要求1-4中所定义); 其制备方法和由其制备的胶乳试剂。