METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
    21.
    发明申请
    METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE 有权
    制造半导体器件的方法

    公开(公告)号:US20100112765A1

    公开(公告)日:2010-05-06

    申请号:US12614632

    申请日:2009-11-09

    IPC分类号: H01L21/8238 H01L21/8234

    摘要: A manufacturing method of a semiconductor device includes: forming multiple trenches on a semiconductor substrate; forming a second conductive type semiconductor film in each trench to provide a first column with the substrate between two trenches and a second column with the second conductive type semiconductor film in the trench, the first and second columns alternately repeated along with a predetermined direction; thinning a second side of the substrate; and increasing an impurity concentration in a thinned second side so that a first conductive type layer is provided. The impurity concentration of the first conductive type layer is higher than the first column. The first column provides a drift layer so that a vertical type first-conductive-type channel transistor is formed.

    摘要翻译: 半导体器件的制造方法包括:在半导体衬底上形成多个沟槽; 在每个沟槽中形成第二导电类型的半导体膜,以提供具有在两个沟槽之间的衬底的第一柱和在沟槽中的第二导电型半导体膜的第二柱,第一和第二列与预定方向交替地重复; 减薄基板的第二面; 并增加稀薄第二侧的杂质浓度,从而提供第一导电类型层。 第一导电型层的杂质浓度比第一列高。 第一列提供漂移层,从而形成垂直型第一导电型沟道晶体管。

    Semiconducotor device and method for manufacturing the same
    22.
    发明申请
    Semiconducotor device and method for manufacturing the same 有权
    半导体器件及其制造方法

    公开(公告)号:US20080173935A1

    公开(公告)日:2008-07-24

    申请号:US12003870

    申请日:2008-01-03

    申请人: Takeshi Miyajima

    发明人: Takeshi Miyajima

    IPC分类号: H01L29/06 H01L21/329

    摘要: A semiconductor device includes a semiconductor substrate, a cell region, an outer peripheral region, a field plate, an outermost peripheral ring, outer peripheral region layer, an insulator film, and a Zener diode. The semiconductor substrate has a superjunction structure. The outer peripheral region is disposed at an outer periphery of the cell region. The Zener diode is disposed on the insulator film for electrically connecting the field plate with the outermost peripheral ring. The Zener diode has a first conductivity type region and a second conductivity type region that are alternately arranged in a direction from the cell region to the outer peripheral region.

    摘要翻译: 半导体器件包括半导体衬底,单元区域,外周区域,场板,最外周环,外周区域层,绝缘膜和齐纳二极管。 半导体衬底具有超结构结构。 外围区域设置在电池区域的外周。 齐纳二极管设置在绝缘膜上,用于将场板与最外周环电连接。 齐纳二极管具有在从单元区域到外周区域的方向上交替布置的第一导电类型区域和第二导电类型区域。

    Semiconductor device having super junction structure and method for manufacturing the same
    23.
    发明申请
    Semiconductor device having super junction structure and method for manufacturing the same 有权
    具有超结结构的半导体器件及其制造方法

    公开(公告)号:US20070177444A1

    公开(公告)日:2007-08-02

    申请号:US11699579

    申请日:2007-01-30

    申请人: Takeshi Miyajima

    发明人: Takeshi Miyajima

    IPC分类号: G11C7/00

    摘要: A semiconductor device having a super junction structure includes: multiple first columns extending in a current flowing direction; and multiple second columns extending in the current flowing direction. The first and second columns are alternately arranged in an alternating direction. Each first column provides a drift layer. The first and second columns have a boundary therebetween, from which a depletion layer expands in case of an off-state. At least one of the first columns and the second columns have an impurity dose, which is inhomogeneous by location with respect to the alternating direction.

    摘要翻译: 具有超结结构的半导体器件包括:沿电流流动方向延伸的多个第一列; 以及沿电流流动方向延伸的多个第二列。 第一和第二列交替地沿交替的方向布置。 每个第一列提供漂移层。 第一和第二列之间具有边界,在断开状态的情况下,耗尽层从该边界扩展。 第一列和第二列中的至少一个具有杂质剂量,其相对于交替方向的位置不均匀。

    Method of measuring inclining angle of planar defect of solid material
by ultrasonic wave
    25.
    发明授权
    Method of measuring inclining angle of planar defect of solid material by ultrasonic wave 失效
    通过超声波测量固体材料的平面缺陷倾斜角的方法

    公开(公告)号:US4785667A

    公开(公告)日:1988-11-22

    申请号:US10083

    申请日:1987-02-11

    摘要: A method of measuring the inclining angle of a planar defect of a solid material with ultrasonic waves which includes the steps of irradiating ultrasonic waves incident to the planar defect of a solid material while longitudinally scanning a probe forwardly and backwardly. The inclining angle of the planar defect is determined based on the inclination of an echo envelope obtained from the relationship of the echo beam path distances of the ultrasonic waves versus the echo amplitudes or heights of the reflected waves reflected from the planar defect of the solid material. The inclining angle of the defect corresponds to a straight line portion of the echo envelope in a region where the echo height decreased gradually from a maximum height position as the echo beam path distance increases. Measurements can be made non-destructively with one probe and the inclining angle of the planar defect generated within an element or a member forming part of an electronic or mechanical apparatus can be determined accurately in an extremely efficient manner.

    摘要翻译: PCT No.PCT / JP85 / 00225 Sec。 371日期1987年2月11日 102(e)日期1987年2月11日PCT提交1985年4月22日PCT公布。 出版物WO86 / 06486 日期:1986年11月6日。一种用超声波测量固体材料的平面缺陷的倾斜角的方法,包括以下步骤:在入射到固体材料的平面缺陷的同时照射超声波,同时向前和向后扫描探针 。 基于从超声波的回波光束路径距离与从固体材料的平面缺陷反射的反射波的回波幅度或高度获得的回波包络线的倾斜度来确定平面缺陷的倾斜角度 。 缺陷的倾斜角对应于回波高度随着回波光束路径距离的增加而从最大高度位置逐渐降低的区域中的回波包络线的直线部分。 可以用一个探针非破坏性地进行测量,并且可以以非常有效的方式精确地确定在元件内形成的平面缺陷的倾斜角或构成电子或机械装置的部件的部件。

    Method for manufacturing a vertical transistor that includes a super junction structure
    27.
    发明授权
    Method for manufacturing a vertical transistor that includes a super junction structure 有权
    一种制造包括超结结构的垂直晶体管的方法

    公开(公告)号:US07858475B2

    公开(公告)日:2010-12-28

    申请号:US12614632

    申请日:2009-11-09

    IPC分类号: H01L21/8234

    摘要: A manufacturing method of a semiconductor device includes: forming multiple trenches on a semiconductor substrate; forming a second conductive type semiconductor film in each trench to provide a first column with the substrate between two trenches and a second column with the second conductive type semiconductor film in the trench, the first and second columns alternately repeated along with a predetermined direction; thinning a second side of the substrate; and increasing an impurity concentration in a thinned second side so that a first conductive type layer is provided. The impurity concentration of the first conductive type layer is higher than the first column. The first column provides a drift layer so that a vertical type first-conductive-type channel transistor is formed.

    摘要翻译: 半导体器件的制造方法包括:在半导体衬底上形成多个沟槽; 在每个沟槽中形成第二导电类型的半导体膜,以提供具有在两个沟槽之间的衬底的第一柱和在沟槽中的第二导电型半导体膜的第二柱,第一和第二列与预定方向交替地重复; 减薄基板的第二面; 并增加稀薄第二侧的杂质浓度,从而提供第一导电类型层。 第一导电型层的杂质浓度比第一列高。 第一列提供漂移层,从而形成垂直型第一导电型沟道晶体管。

    Method for manufacturing a vertical transistor that includes a super junction structure
    28.
    发明授权
    Method for manufacturing a vertical transistor that includes a super junction structure 有权
    一种制造包括超结结构的垂直晶体管的方法

    公开(公告)号:US07635622B2

    公开(公告)日:2009-12-22

    申请号:US11889075

    申请日:2007-08-09

    IPC分类号: H01L21/8238

    摘要: A manufacturing method of a semiconductor device includes: forming multiple trenches on a semiconductor substrate; forming a second conductive type semiconductor film in each trench to provide a first column with the substrate between two trenches and a second column with the second conductive type semiconductor film in the trench, the first and second columns alternately repeated along with a predetermined direction; thinning a second side of the substrate; and increasing an impurity concentration in a thinned second side so that a first conductive type layer is provided. The impurity concentration of the first conductive type layer is higher than the first column. The first column provides a drift layer so that a vertical type first-conductive-type channel transistor is formed.

    摘要翻译: 半导体器件的制造方法包括:在半导体衬底上形成多个沟槽; 在每个沟槽中形成第二导电类型的半导体膜,以提供具有在两个沟槽之间的衬底的第一柱和在沟槽中的第二导电型半导体膜的第二柱,第一和第二列与预定方向交替地重复; 减薄基板的第二面; 并增加稀薄第二侧的杂质浓度,从而提供第一导电类型层。 第一导电型层的杂质浓度比第一列高。 第一列提供漂移层,从而形成垂直型第一导电型沟道晶体管。

    Manufacturing method of semiconductor device with a groove
    30.
    发明授权
    Manufacturing method of semiconductor device with a groove 失效
    具有凹槽的半导体器件的制造方法

    公开(公告)号:US5998268A

    公开(公告)日:1999-12-07

    申请号:US938472

    申请日:1997-09-29

    摘要: On the surface of a semiconductor substrate there are formed a silicon oxide film, silicon nitride film and resist, whereby a groove is formed in the semiconductor substrate through an opening portion by chemical dry etching. An oxide film is formed on the inner surface of the groove by wet oxidation and, further, this oxide film is removed by wet etching, after which the surface of the semiconductor substrate located on the outer-peripheral side of the groove from an angular portion defined between a side surface of the groove and the surface of the semiconductor substrate is exposed. Then, the inner surface of the groove and the exposed surface of the semiconductor substrate are oxidized to thereby form a LOCOS oxide film, and thereafter this LOCOS oxide film is removed. As a result of this, the angular portion is made round, thereby enabling the avoidance of the concentration of an electric field on the angular portion of the groove.

    摘要翻译: 在半导体衬底的表面上形成氧化硅膜,氮化硅膜和抗蚀剂,由此通过化学干蚀刻通过开口部分在半导体衬底中形成沟槽。 通过湿式氧化在沟槽的内表面上形成氧化膜,此外,通过湿蚀刻除去该氧化物膜,然后从位于槽的外周侧的半导体衬底的表面从角部 限定在凹槽的侧表面和半导体衬底的表面之间。 然后,将沟槽的内表面和半导体衬底的暴露表面氧化,从而形成LOCOS氧化物膜,然后除去该LOCOS氧化物膜。 其结果是,角部形成为圆形,从而能够避免沟槽的角部上的电场集中。