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    • 5. 发明授权
    • Circuit and method for power clamp triggered dual SCR ESD protection
    • 用于电源钳位的电路和方法触发双SCR ESD保护
    • US08049250B2
    • 2011-11-01
    • US12258946
    • 2008-10-27
    • Ming-Hsiang SongJam-Wem Lee
    • Ming-Hsiang SongJam-Wem Lee
    • H01L29/66
    • H01L29/7436H01L27/0262
    • Circuit and method for RC power clamp triggered dual SCR ESD protection. In an integrated circuit, a protected pad is coupled to an upper SCR circuit and a lower SCR circuit; and both are coupled to the RC power clamp circuit, which is coupled between the positive voltage supply and the ground voltage supply. A structure for ESD protection is disclosed having a first well of a first conductivity type adjacent to a second well of a second conductivity type, the boundary forming a p-n junction, and a pad contact diffusion region in each well electrically coupled to a pad terminal; additional diffusions are provided proximate to and electrically isolated from the pad contact diffusion regions, the diffusion regions and first and second wells form two SCR devices. These SCR devices are triggered, during an ESD event, by current injected into the respective wells by an RC power clamp circuit.
    • RC电源钳位电路和方法触发双SCR ESD保护。 在集成电路中,受保护的焊盘耦合到上部SCR电路和下部SCR电路; 并且两者耦合到耦合在正电压源和接地电压源之间的RC功率钳位电路。 公开了一种用于ESD保护的结构,其具有与第二导电类型的第二阱相邻的第一导电类型的第一阱,形成p-n结的边界以及电耦合到焊盘端子的每个阱中的焊盘接触扩散区; 在焊盘接触扩散区域附近提供附加的扩散,并且与焊接接触扩散区域电隔离,扩散区域和第一和第二阱形成两个SCR器件。 这些SCR器件在ESD事件期间被RC功率钳位电路注入到各个阱中的电流被触发。
    • 6. 发明申请
    • Circuit and Method for Power Clamp Triggered Dual SCR ESD Protection
    • 电源钳位触发双SCR ESD保护的电路和方法
    • US20100103570A1
    • 2010-04-29
    • US12258946
    • 2008-10-27
    • Ming-Hsiang SongJam-Wem Lee
    • Ming-Hsiang SongJam-Wem Lee
    • H02H9/00H01L29/74
    • H01L29/7436H01L27/0262
    • Circuit and method for RC power clamp triggered dual SCR ESD protection. In an integrated circuit, a protected pad is coupled to an upper SCR circuit and a lower SCR circuit; and both are coupled to the RC power clamp circuit, which is coupled between the positive voltage supply and the ground voltage supply. A structure for ESD protection is disclosed having a first well of a first conductivity type adjacent to a second well of a second conductivity type, the boundary forming a p-n junction, and a pad contact diffusion region in each well electrically coupled to a pad terminal; additional diffusions are provided proximate to and electrically isolated from the pad contact diffusion regions, the diffusion regions and first and second wells form two SCR devices. These SCR devices are triggered, during an ESD event, by current injected into the respective wells by an RC power clamp circuit.
    • RC电源钳位电路和方法触发双SCR ESD保护。 在集成电路中,受保护的焊盘耦合到上部SCR电路和下部SCR电路; 并且两者耦合到耦合在正电压源和接地电压源之间的RC功率钳位电路。 公开了一种用于ESD保护的结构,其具有与第二导电类型的第二阱相邻的第一导电类型的第一阱,形成p-n结的边界以及电耦合到焊盘端子的每个阱中的焊盘接触扩散区; 在焊盘接触扩散区域附近提供附加的扩散,并且与焊接接触扩散区域电隔离,扩散区域和第一和第二阱形成两个SCR器件。 这些SCR器件在ESD事件期间被RC功率钳位电路注入到各个阱中的电流被触发。
    • 7. 发明申请
    • Fast Turn On Silicon Controlled Rectifiers for ESD Protection
    • 快速开启用于ESD保护的硅控整流器
    • US20140027815A1
    • 2014-01-30
    • US13558154
    • 2012-07-25
    • Yu-Ti SuTzu-Heng ChangJen-Chou TsengMing-Hsiang Song
    • Yu-Ti SuTzu-Heng ChangJen-Chou TsengMing-Hsiang Song
    • H01L27/06H01L21/8222
    • H01L27/0817H01L27/0262H01L29/7436
    • Fast turn on silicon controlled rectifiers for ESD protection. A semiconductor device includes a semiconductor substrate of a first conductivity type; a first well of a second conductivity type; a second well of the second conductivity type; a first diffused region of the first conductivity type and coupled to a first terminal; a first diffused region of the second conductivity type; a second diffused region of the first conductivity type; a second diffused region of the second conductivity type in the second well; wherein the first diffused region of the first conductivity type and the first diffused region of the second conductivity type form a first diode, and the second diffused region of the first conductivity type and the second diffused region of the second conductivity type form a second diode, and the first and second diodes are series coupled between the first terminal and the second terminal.
    • 快速开启可控硅整流器,实现ESD保护。 半导体器件包括第一导电类型的半导体衬底; 第二导电类型的第一阱; 第二导电类型的第二阱; 第一导电类型的第一扩散区域并耦合到第一端子; 第二导电类型的第一扩散区域; 第一导电类型的第二扩散区域; 第二导电类型的第二扩散区域; 其中第一导电类型的第一扩散区域和第二导电类型的第一扩散区域形成第一二极管,并且第一导电类型的第二扩散区域和第二导电类型的第二扩散区域形成第二二极管, 并且第一和第二二极管串联耦合在第一端子和第二端子之间。
    • 8. 发明授权
    • Bidirectional dual-SCR circuit for ESD protection
    • 用于ESD保护的双向双SCR电路
    • US08759871B2
    • 2014-06-24
    • US13176780
    • 2011-07-06
    • Ming-Hsiang SongJam-Wem LeeTzu-Heng ChangYu-Ying Hsu
    • Ming-Hsiang SongJam-Wem LeeTzu-Heng ChangYu-Ying Hsu
    • H01L29/66
    • H01L27/0262
    • An ESD protection circuit includes a pad of an IC, circuitry coupled to the pad for buffering data, an RC power clamp on the IC, and first and second silicon controlled rectifier (SCR) circuits. The RC power clamp is coupled between a positive power supply terminal and a ground terminal. The first SCR circuit is coupled between the pad and the positive power supply terminal. The first SCR circuit has a first trigger input coupled to the RC power clamp circuit. The second SCR circuit is coupled between the pad and the ground terminal. The second SCR circuit has a second trigger input coupled to the RC power clamp circuit. At least one of the SCR circuits includes a gated diode configured to selectively provide a short or relatively conductive electrical path between the pad and one of the positive power supply terminal and the ground terminal.
    • ESD保护电路包括IC的焊盘,耦合到用于缓冲数据的焊盘的电路,IC上的RC功率钳,以及第一和第二可硅可控整流器(SCR)电路。 RC电源钳位在正电源端子和接地端子之间。 第一SCR电路耦合在焊盘和正电源端子之间。 第一SCR电路具有耦合到RC功率钳位电路的第一触发输入。 第二SCR电路耦合在焊盘和接地端子之间。 第二SCR电路具有耦合到RC功率钳位电路的第二触发输入。 SCR电路中的至少一个包括栅极二极管,其被配置为选择性地在焊盘与正电源端子和接地端子之一之间提供短路或相对导电的电路径。
    • 9. 发明授权
    • Fast turn on silicon controlled rectifiers for ESD protection
    • 快速开启可控硅整流器,实现ESD保护
    • US08692289B2
    • 2014-04-08
    • US13558154
    • 2012-07-25
    • Yu-Ti SuTzu-Heng ChangJen-Chou TsengMing-Hsiang Song
    • Yu-Ti SuTzu-Heng ChangJen-Chou TsengMing-Hsiang Song
    • H01L29/74H01L31/111H02H3/00H02H7/00H02H9/02
    • H01L27/0817H01L27/0262H01L29/7436
    • Fast turn on silicon controlled rectifiers for ESD protection. A semiconductor device includes a semiconductor substrate of a first conductivity type; a first well of a second conductivity type; a second well of the second conductivity type; a first diffused region of the first conductivity type and coupled to a first terminal; a first diffused region of the second conductivity type; a second diffused region of the first conductivity type; a second diffused region of the second conductivity type in the second well; wherein the first diffused region of the first conductivity type and the first diffused region of the second conductivity type form a first diode, and the second diffused region of the first conductivity type and the second diffused region of the second conductivity type form a second diode, and the first and second diodes are series coupled between the first terminal and the second terminal.
    • 快速开启可控硅整流器,实现ESD保护。 半导体器件包括第一导电类型的半导体衬底; 第二导电类型的第一阱; 第二导电类型的第二阱; 第一导电类型的第一扩散区域并耦合到第一端子; 第二导电类型的第一扩散区域; 第一导电类型的第二扩散区域; 第二导电类型的第二扩散区域; 其中第一导电类型的第一扩散区域和第二导电类型的第一扩散区域形成第一二极管,并且第一导电类型的第二扩散区域和第二导电类型的第二扩散区域形成第二二极管, 并且第一和第二二极管串联耦合在第一端子和第二端子之间。