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    • 61. 发明申请
    • Emitter Ballasting by Contact Area Segmentation in ESD Bipolar Based Semiconductor Component
    • 通过ESD双极性半导体元件中的接触区域分割发射器镇流器
    • US20080169513A1
    • 2008-07-17
    • US11863971
    • 2007-09-28
    • Marie Denison
    • Marie Denison
    • H01L27/102H01L21/8249
    • H01L27/0259H01L24/05H01L27/0641H01L2924/1305H01L2924/13091H01L2924/14H01L2924/00
    • Integrated circuits (ICs) utilize bipolar transistors in electro-static discharge (ESD) protection circuits to shunt discharge currents during ESD events to protect the components in the ICs. Bipolar transistors are subject to non-uniform current crowding across the emitter-base junction during ESD events, which results in less protection for the IC components and degradation of the bipolar transistor. This invention comprises multiple contact islands (126) on the emitter (116) of a bipolar transistor, which act to spread current uniformly across the emitter-base junction. Also included in this invention is segmentation of the emitter diffused region to further improve current uniformity and biasing of the transistor. This invention can be combined with drift region ballasting or back-end ballasting to optimize an ESD protection circuit.
    • 集成电路(IC)利用静电放电(ESD)保护电路中的双极晶体管在ESD事件期间分流放电电流,以保护IC中的组件。 在ESD事件期间,双极晶体管在发射极 - 基极结上受到不均匀的电流拥挤,这导致对IC器件的更少的保护和双极晶体管的劣化。 本发明包括在双极晶体管的发射极(116)上的多个接触岛(126),其用于均匀地扩散电流穿过发射极 - 基极结。 本发明还包括发射极扩散区域的分割,以进一步提高晶体管的电流均匀性和偏置。 本发明可以与漂移区镇流或后端镇流相组合,以优化ESD保护电路。
    • 62. 发明授权
    • Circuit for current sensing in high-voltage transistor
    • 高压晶体管电流检测电路
    • US08890579B2
    • 2014-11-18
    • US13554846
    • 2012-07-20
    • Joseph M. KhayatMarie Denison
    • Joseph M. KhayatMarie Denison
    • H03K3/00
    • H03K17/08H03K2217/0027
    • An integrated circuit including a high-voltage n-channel MOS power transistor, a high-voltage n-channel MOS blocking transistor, a high-voltage n-channel MOS reference transistor, and a voltage comparator, configured to provide an overcurrent signal if drain current through the power transistor in the on state exceeds a predetermined value. The power transistor source node is grounded. The blocking transistor drain node is connected to the power transistor drain node. The blocking transistor source node is coupled to the comparator non-inverting input. The reference transistor drain node is fed by a current source and is connected to the comparator inverting input. The reference transistor gate node is coupled to a gate node of the power transistor. The comparator output provides the overcurrent signal. A process of operating the integrated circuit is disclosed.
    • 包括高电压n沟道MOS功率晶体管,高压n沟道MOS截止晶体管,高压n沟道MOS参考晶体管和电压比较器的集成电路,被配置为在漏极 通过处于导通状态的功率晶体管的电流超过预定值。 功率晶体管源节点接地。 阻塞晶体管漏极节点连接到功率晶体管漏极节点。 阻塞晶体管源节点耦合到比较器同相输入。 参考晶体管漏极节点由电流源馈送并连接到比较器反相输入。 参考晶体管栅极节点耦合到功率晶体管的栅极节点。 比较器输出提供过电流信号。 公开了一种操作该集成电路的过程。
    • 66. 发明申请
    • LATERAL SUPERJUNCTION EXTENDED DRAIN MOS TRANSISTOR
    • 横向超级扩展漏磁MOS晶体管
    • US20120104493A1
    • 2012-05-03
    • US13284054
    • 2011-10-28
    • Marie DenisonSameer Pendhakar
    • Marie DenisonSameer Pendhakar
    • H01L29/78H01L21/762
    • H01L29/7816H01L21/76224H01L29/0634H01L29/0649H01L29/0692H01L29/0696H01L29/0882H01L29/4236H01L29/66659H01L29/66681H01L29/7835
    • An integrated circuit containing an extended drain MOS transistor with deep semiconductor (SC) RESURF trenches in the drift region, in which each deep SC RESURF trench has a semiconductor RESURF layer at a sidewall of the trench contacting the drift region. The semiconductor RESURF layer has an opposite conductivity type from the drift region. The deep SC RESURF trenches have depth:width ratios of at least 5:1, and do not extend through a bottom surface of the drift region. A process of forming an integrated circuit with deep SC RESURF trenches in the drift region by etching undersized trenches and counterdoping the sidewall region to form the semiconductor RESURF layer. A process of forming an integrated circuit with deep SC RESURF trenches in the drift region by etching trenches and growing an epitaxial layer on the sidewall region to form the semiconductor RESURF layer.
    • 一种集成电路,其包含在漂移区域中具有深半导体(SC)RESURF沟槽的扩展漏极MOS晶体管,其中每个深的SC RESURF沟槽在与漂移区接触的沟槽的侧壁处具有半导体RESURF层。 半导体RESURF层具有与漂移区相反的导电类型。 深的SC RESURF沟槽具有至少5:1的深度:宽度比,并且不延伸穿过漂移区域的底部表面。 通过蚀刻尺寸不足的沟槽和反向掺杂侧壁区以形成半导体RESURF层,在漂移区中形成具有深SC RESURF沟槽的集成电路的工艺。 通过蚀刻沟槽并在侧壁区域上生长外延层以形成半导体RESURF层,在漂移区中形成具有深SC RESURF沟槽的集成电路的工艺。
    • 68. 发明申请
    • LATERAL DRAIN-EXTENDED MOSFET HAVING CHANNEL ALONG SIDEWALL OF DRAIN EXTENSION DIELECTRIC
    • 排水延伸电磁场的横向排水扩散型MOSFET
    • US20110151634A1
    • 2011-06-23
    • US13027734
    • 2011-02-15
    • Marie DenisonTaylor Rice Efland
    • Marie DenisonTaylor Rice Efland
    • H01L21/336
    • H01L29/7825H01L29/0653H01L29/0878H01L29/402H01L29/407H01L29/4236H01L29/42368H01L29/42376H01L29/66704
    • An integrated circuit (200) includes one of more transistors (210) on or in a substrate (10) having semiconductor surface layer, the surface layer having a top surface. At least one of the transistors are drain extended metal-oxide-semiconductor (DEMOS) transistor (210). The DEMOS transistor includes a drift region (14) in the surface layer having a first dopant type, a field dielectric (23) in or on a portion of the surface layer, and a body region of a second dopant type (16) within the drift region (14). The body region (16) has a body wall extending from the top surface of the surface layer downwards along at least a portion of a dielectric wall of an adjacent field dielectric region. A gate dielectric (21) is on at least a portion of the body wall. An electrically conductive gate electrode (22) is on the gate dielectric (21) on the body wall. A source region (18) of the first doping type is in the body region (16), a drain region (20) of the first doping type is in the drift region (14), and interconnects (521) are operable to electrically connect the one or more transistors to each other on the integrated circuit (200).
    • 集成电路(200)包括在具有半导体表面层的衬底(10)上或衬底(10)中的多个晶体管(210)中的一个,所述表面层具有顶表面。 至少一个晶体管是漏极延伸的金属氧化物半导体(DEMOS)晶体管(210)。 DEMOS晶体管包括在表面层中具有第一掺杂剂类型的漂移区域(14),表面层的一部分中或之上的场电介质(23),以及在该层内的第二掺杂剂类型(16)的体区 漂移区(14)。 身体区域(16)具有从表面层的顶表面沿相邻场介电区域的电介质壁的至少一部分向下延伸的主体壁。 门电介质(21)位于体壁的至少一部分上。 导电栅电极(22)位于体壁上的栅电介质(21)上。 第一掺杂型的源极区域(18)位于体区(16)中,第一掺杂型漏区(20)位于漂移区(14)中,互连(521)可操作以电连接 集成电路(200)上的一个或多个晶体管彼此相连。
    • 69. 发明授权
    • Integrated circuit
    • 集成电路
    • US07915676B2
    • 2011-03-29
    • US11186402
    • 2005-07-21
    • Nils JensenMarie Denison
    • Nils JensenMarie Denison
    • H01L29/94
    • H01L29/7302H01L27/0248H01L29/7808H01L29/7809H01L29/7821H01L29/866H01L2924/0002H01L2924/00
    • The invention relates to an integrated circuit having a semiconductor component (10) comprising a first p-type region (12) and a first n-type region (11) adjoining the first p-type region (12), which together form a first pn junction having a breakdown voltage. According to the invention, a further n-type region adjoining the first p-type region or a further p-type region (13) adjoining the first n-type region (11) is provided, the first p-type or n-type region (11) and the further n-type or p-type region (13) adjoining the latter together forming a further pn junction having a further breakdown voltage, the first pn junction and the further pn junction being connected or connectable to one another in such a way that, in the case of an overloading of the semiconductor component, on account of a current loading of the first pn junction, first of all the further pn junction breaks down.
    • 本发明涉及一种具有半导体元件(10)的集成电路,该半导体元件(10)包括第一p型区域(12)和毗邻第一p型区域(12)的第一n型区域(11),它们一起形成第一 pn结具有击穿电压。 根据本发明,提供了邻接第一p型区域的另一个n型区域或与第一n型区域(11)相邻的另外的p型区域(13),第一p型或n型区域 区域(11)和与之相邻的另外的n型或p型区域(13)一起形成具有另外的击穿电压的另外的pn结,所述第一pn结和所述另外的pn结可以彼此连接或连接 这样一种方式,在半导体部件的过载的情况下,由于第一pn结的电流负载,首先进一步的pn结破裂。