Method of forming a varactor with an increased linear tuning range
    2.
    发明授权
    Method of forming a varactor with an increased linear tuning range 有权
    形成具有增加的线性调谐范围的变容二极管的方法

    公开(公告)号:US07067384B1

    公开(公告)日:2006-06-27

    申请号:US10634948

    申请日:2003-08-05

    IPC分类号: H01L21/18

    CPC分类号: H01L29/94 H01L29/93

    摘要: The linear tuning range of a semiconductor varactor is substantially increased by forming a lightly-doped drain region of a first conductivity type in a semiconductor material of a second conductivity type between a heavily-doped diffusion of the second conductivity type and a lower-plate region of the semiconductor material.

    摘要翻译: 半导体变容二极管的线性调谐范围通过在第二导电类型的重掺杂扩散和下板区域之间形成第二导电类型的半导体材料中的第一导电类型的轻掺杂漏区, 的半导体材料。

    Current balancing in NPN BJT and BSCR snapback devices
    4.
    发明授权
    Current balancing in NPN BJT and BSCR snapback devices 有权
    NPN BJT和BSCR快速恢复设备的电流平衡

    公开(公告)号:US07795047B1

    公开(公告)日:2010-09-14

    申请号:US11016010

    申请日:2004-12-17

    IPC分类号: H01L31/072

    摘要: In a method and structure for current balancing the emitter current in a multi-finger n-emitter of a BJT or BSCR, back-end or polysilicon resistors are applied between the emitter fingers and the power rail, with the resistors chosen to be larger the closer the emitter fingers are to the collector.

    摘要翻译: 在用于电流平衡BJT或BSCR的多指n发射极中的发射极电流的方法和结构中,后端或多晶硅电阻器被施加在发射极和电源轨之间,其中电阻器选择为大于 发射器手指靠近收集器。

    High holding voltage dual direction ESD clamp
    6.
    发明授权
    High holding voltage dual direction ESD clamp 有权
    高保持电压双向ESD钳位

    公开(公告)号:US07639464B1

    公开(公告)日:2009-12-29

    申请号:US11376492

    申请日:2006-03-15

    IPC分类号: H02H9/00 H02H3/20

    CPC分类号: H01L27/0266

    摘要: In a dual direction ESD protection structure, first and second NMOS devices are serially connected back-to-back by connecting their drains or their sources using a common floating interconnect, while ensuring that the devices remain isolated from each other.

    摘要翻译: 在双向ESD保护结构中,第一和第二NMOS器件通过使用公共浮动互连连接它们的漏极或其源极而被背对背地串联连接,同时确保器件保持彼此隔离。

    Method of Forming a SiGe DIAC ESD Protection Structure
    8.
    发明申请
    Method of Forming a SiGe DIAC ESD Protection Structure 有权
    形成SiGe DIAC ESD保护结构的方法

    公开(公告)号:US20090162978A1

    公开(公告)日:2009-06-25

    申请号:US12395506

    申请日:2009-02-27

    IPC分类号: H01L21/332

    CPC分类号: H01L27/0259

    摘要: A diode for alternating current (DIAC) electrostatic discharge (ESD) protection circuit is formed in a silicon germanium (SiGe) hetrojunction bipolar transistor (HBT) process that utilizes a very thin collector region. ESD protection for a pair of to-be-protected pads is provided by utilizing the base structures and the emitter structures of the SiGe transistors.

    摘要翻译: 用于交流(DIAC)静电放电(ESD)保护电路的二极管形成在利用非常薄的集电极区域的硅锗(SiGe)合金双极晶体管(HBT)工艺中。 通过利用SiGe晶体管的基极结构和发射极结构,提供一对待保护焊盘的ESD保护。

    Dual direction ESD clamp based on snapback NMOS cell with embedded SCR
    10.
    发明授权
    Dual direction ESD clamp based on snapback NMOS cell with embedded SCR 有权
    基于具有嵌入式SCR的快速恢复NMOS单元的双向ESD钳位

    公开(公告)号:US07394133B1

    公开(公告)日:2008-07-01

    申请号:US11216774

    申请日:2005-08-31

    IPC分类号: H01L29/72

    摘要: In an ESD protection structure, dual direction ESD protection is provided by forming an n-well isolation ring around an NMOS device so that the p-well in which the NMOS drain is formed is isolated from the underlying p-substrate by the n-well isolation ring. By forming the n-well isolation ring the p-n-p-n structure of an embedded SCR for reverse ESD protection is provided. The width of the n-well isolation ring and its spacing from the NMOS drain are adjusted to provide the desired SCR parameters.

    摘要翻译: 在ESD保护结构中,通过在NMOS器件周围形成n阱隔离环来提供双向ESD保护,使得形成NMOS漏极的p阱通过n阱与下面的p衬底隔离 隔离环。 通过形成n阱隔离环,提供了用于反向ESD保护的嵌入式SCR的p-n-p-n结构。 调整n阱隔离环的宽度及其与NMOS漏极的间隔,以提供所需的SCR参数。