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    • 56. 发明申请
    • RC-Triggered Power Clamp Suppressing Negative Mode Electrostatic Discharge Stress
    • RC触发电源钳位抑制负模式静电放电应力
    • US20070285853A1
    • 2007-12-13
    • US11422608
    • 2006-06-07
    • Robert J. GauthierDimitrios K. KontosJunjun LiSouvick MitraChristopher S. Putnam
    • Robert J. GauthierDimitrios K. KontosJunjun LiSouvick MitraChristopher S. Putnam
    • H02H9/00
    • H02H9/046
    • An electrostatic discharge (ESD) power clamp circuit including a RC-delay element coupled to a plurality of serialized inverter elements with a power clamp element and an ESD-triggered keeper device coupled to the plurality of inverters. During negative mode ESD events, the ESD-triggered keeper device is activated and assists the power clamp element to pull up and strongly conduct current to protect the circuit. Additionally, a method of ESD protection in a circuit is provided. The method includes coupling a RC-delay element to an input of a plurality of serialized inverter elements, coupling an output of the plurality of serialized inverters with an ESD-triggered keeper device and a power clamp element, triggering the ESD-triggered keeper device to turn on during negative ESD events and conducting current by the power clamp element with assistance of the ESD-triggered keeper device to protect the circuit as a result of negative ESD events.
    • 一种静电放电(ESD)功率钳位电路,其包括耦合到多个串联反相器元件的RC延迟元件,其具有耦合到所述多个逆变器的功率钳位元件和ESD触发的保持器装置。 在负模式ESD事件期间,ESD触发的保护装置被激活,并且帮助电源钳位元件上拉并强烈地传导电流以保护电路。 另外,提供了电路中ESD保护的方法。 该方法包括将RC延迟元件耦合到多个串联反相器元件的输入端,将多个串联反相器的输出与ESD触发的保持器装置和功率钳位元件耦合,将ESD触发的保持器装置触发 在ESD ESD事件期间接通电源,并通过ESD触发的保护装置的辅助,通过电源钳位元件传导电流,以保护电路由于负ESD事件。
    • 57. 发明授权
    • Bidirectional electrostatic discharge protection structure for high voltage applications
    • 双向静电放电保护结构,适用于高压应用
    • US07968908B2
    • 2011-06-28
    • US12563610
    • 2009-09-21
    • Michel J. Abou-KhalilRobert GauthierJunjun Li
    • Michel J. Abou-KhalilRobert GauthierJunjun Li
    • H01L29/73
    • H01L23/60H01L27/0262H01L2924/0002H01L2924/12044H01L2924/00
    • Semiconductor structures providing protection against electrostatic events of both polarities are provided. A pair of p-n junctions is provided underneath a shallow trench isolation portion between a first-conductivity-type well and each of a signal-side second-conductivity-type well and an electrical-ground-side second-conductivity-type well in a semiconductor substrate. A second-conductivity-type doped region and a first-conductivity-type doped region are formed above each second-conductivity-type well such that a portion of the second-conductivity-type well resistively separates the second-conductivity-type doped region and the first-conductivity-type doped region within the semiconductor substrate. Each of the second-conductivity-type doped regions is wired either to a signal node or electrical ground. One of the two npn transistors and one of the two p-n diodes, each inherently present in the semiconductor structure, turn on to provide protection against electrical discharge events involving either type of excessive electrical charges.
    • 提供了提供两极性静电事件保护的半导体结构。 在第一导电型阱与信号侧第二导电型阱和电 - 接地侧第二导电型阱中的每一个之间的浅沟槽隔离部分的半导体中设置一对pn结 基质。 第二导电型掺杂区域和第一导电型掺杂区域形成在每个第二导电型阱之上,使得第二导电型阱的一部分阱电阻地分离第二导电型掺杂区域,以及 半导体衬底内的第一导电型掺杂区域。 每个第二导电类型的掺杂区域被连接到信号节点或电接地。 两个npn晶体管中的一个和两个固有地存在于半导体结构中的两个p-n二极管中的一个导通以提供防止涉及任何一种过量电荷的放电事件的保护。
    • 58. 发明申请
    • BIDIRECTIONAL ELECTROSTATIC DISCHARGE PROTECTION STRUCTURE FOR HIGH VOLTAGE APPLICATIONS
    • 用于高压应用的双向静电放电保护结构
    • US20110068364A1
    • 2011-03-24
    • US12563610
    • 2009-09-21
    • Michel J. Abou-KhalilRobert GauthierJunjun Li
    • Michel J. Abou-KhalilRobert GauthierJunjun Li
    • H01L23/60
    • H01L23/60H01L27/0262H01L2924/0002H01L2924/12044H01L2924/00
    • Semiconductor structures providing protection against electrostatic events of both polarities are provided. A pair of p-n junctions is provided underneath a shallow trench isolation portion between a first-conductivity-type well and each of a signal-side second-conductivity-type well and an electrical-ground-side second-conductivity-type well in a semiconductor substrate. A second-conductivity-type doped region and a first-conductivity-type doped region are formed above each second-conductivity-type well such that a portion of the second-conductivity-type well resistively separates the second-conductivity-type doped region and the first-conductivity-type doped region within the semiconductor substrate. Each of the second-conductivity-type doped regions is wired either to a signal node or electrical ground. One of the two npn transistors and one of the two p-n diodes, each inherently present in the semiconductor structure, turn on to provide protection against electrical discharge events involving either type of excessive electrical charges.
    • 提供了提供两极性静电事件保护的半导体结构。 在第一导电型阱与信号侧第二导电型阱和电 - 接地侧第二导电型阱中的每一个之间的浅沟槽隔离部分的半导体中设置一对pn结 基质。 第二导电型掺杂区域和第一导电型掺杂区域形成在每个第二导电型阱之上,使得第二导电型阱的一部分阱电阻地分离第二导电型掺杂区域和 半导体衬底内的第一导电型掺杂区域。 每个第二导电类型的掺杂区域被连接到信号节点或电接地。 两个npn晶体管中的一个和两个固有地存在于半导体结构中的两个p-n二极管中的一个导通以提供防止涉及任何一种过量电荷的放电事件的保护。