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    • 33. 发明申请
    • ESD CLAMP CIRCUIT
    • ESD钳位电路
    • US20150318275A1
    • 2015-11-05
    • US14702356
    • 2015-05-01
    • Semiconductor Manufacturing International (Shanghai) Corporation
    • Guang ChenHuijuan ChengHongwei Li
    • H01L27/02
    • H01L27/0285H01L27/0251H01L27/0266H01L27/0288
    • An ESD clamp circuit includes a power supply, a ground supply, an ESD detection transistor, a capacitor having a first terminal connected to the power supply and a second terminal connected to a gate of the ESD detection transistor, and a first resistor connected in series with the capacitor between the power and ground supplies. The ESD clamp circuit also includes a clamp transistor having a first terminal connected to the power supply and a second terminal connected to the ground terminal, an inverter having an input connected to a first terminal of the ESD detection transistor and an output connected to the gate of the clamp transistor, a feedback transistor connected across the inverter, and a second resistor having a first terminal connected to the gate of the clamp transistor and to a second terminal to the ground supply.
    • ESD钳位电路包括电源,接地电源,ESD检测晶体管,具有连接到电源的第一端子的电容器和连接到ESD检测晶体管的栅极的第二端子以及串联连接的第一电阻器 电容器与电源和地电源之间。 ESD钳位电路还包括具有连接到电源的第一端子和连接到接地端子的第二端子的钳位晶体管,具有连接到ESD检测晶体管的第一端子的输入端和连接到栅极的输出端的反相器 钳位晶体管,跨过反相器连接的反馈晶体管,以及第二电阻器,其具有连接到钳位晶体管的栅极的第一端子和连接到地电源的第二端子。
    • 35. 发明授权
    • Input protection circuit
    • 输入保护电路
    • US09118180B2
    • 2015-08-25
    • US13782623
    • 2013-03-01
    • YOKOGAWA ELECTRIC CORPORATION
    • Kazuhide YasudaHiroaki Hagiwara
    • H02H3/20H01L27/02H02H9/04
    • H02H3/207H01L27/0285H02H9/046
    • An input protection circuit includes: a first transistor of a field-effect type coupled in series between an input terminal and an electronic circuit, the input terminal receiving an input voltage, the electronic circuit receiving an input voltage, the first transistor switching to an off-state in a case where the input voltage is higher than a positive power supply voltage of the electronic circuit; a second transistor of a field-effect type coupled in series between the first transistor and the electronic circuit, the second transistor switching to an off-state in a case where the input voltage is lower than the negative power supply voltage of the electronic circuit; and a voltage control circuit configured to maintain gate-source voltages of the first transistor and the second transistor as voltages within a power supply voltage range of the electronic circuit based on the input voltage.
    • 输入保护电路包括:串联耦合在输入端子和电子电路之间的场效应晶体管,输入端子接收输入电压,电子电路接收输入电压,第一晶体管切换到截止状态 在输入电压高于电子电路的正电源电压的情况下, 在第一晶体管和电子电路之间串联耦合的场效应晶体管的第二晶体管,在输入电压低于电子电路的负电源电压的情况下,第二晶体管切换到截止状态; 以及电压控制电路,被配置为基于所述输入电压将所述第一晶体管和所述第二晶体管的栅源电压保持在所述电子电路的电源电压范围内。
    • 36. 发明申请
    • Semiconductor ESD Circuit and Method
    • 半导体ESD电路及方法
    • US20150229126A1
    • 2015-08-13
    • US14690739
    • 2015-04-20
    • Infineon Technologies AG
    • Krzysztof DomanskiWolfgang SoldnerCornelius Christian RussDavid AlvarezAdrien Ille
    • H02H9/04
    • H02H9/046H01L27/0285H01L29/0692H01L29/1083
    • In an embodiment, an electrostatic discharge (ESD) circuit for providing protection between a first node and a second node includes a first MOS device having a first source/drain coupled to a first node, and a second source/drain coupled to an intermediate node. The ESD circuit also includes a first capacitor coupled between a gate of the first MOS device and the first node, a first resistor coupled between the gate of the first MOS device the intermediate node, a second MOS device having a first source/drain coupled to the intermediate node, and a second source/drain coupled to the second node, a second capacitor coupled between a gate of the second MOS device and the first node, and a second resistor coupled between the gate of the second MOS device and the second node.
    • 在一个实施例中,用于在第一节点和第二节点之间提供保护的静电放电(ESD)电路包括具有耦合到第一节点的第一源极/漏极和耦合到中间节点的第二源极/漏极的第一MOS器件 。 ESD电路还包括耦合在第一MOS器件的栅极和第一节点之间的第一电容器,耦合在第一MOS器件的中间节点的栅极之间的第一电阻器,第二MOS / 中间节点和耦合到第二节点的第二源极/漏极,耦合在第二MOS器件的栅极和第一节点之间的第二电容器,以及耦合在第二MOS器件的栅极和第二节点之间的第二电阻器 。
    • 38. 发明申请
    • SEMICONDUCTOR DEVICE
    • 半导体器件
    • US20150171739A1
    • 2015-06-18
    • US14632104
    • 2015-02-26
    • Semiconductor Energy Laboratory Co., Ltd.
    • Koichiro KAMATA
    • H02M1/32H02J17/00H02M7/217
    • H02M1/32G06K19/0701G06K19/0715G06K19/07749H01L27/0248H01L27/0285H01L27/1225H02H9/046H02J7/025H02J17/00H02J50/12H02M7/217
    • To prevent damage on an element even when a voltage high enough to break the element is input. A semiconductor device of the invention operates with a first voltage and includes a protection circuit which changes the value of the first voltage when the absolute value of the first voltage is higher than a reference value. The protection circuit includes: a control signal generation circuit generating a second voltage based on the first voltage and outputting the generated second voltage; and a voltage control circuit. The voltage control circuit includes a transistor which has a source, a drain, and a gate, and which is turned on or off depending on the second voltage input to the gate and thus controls whether the value of the first voltage is changed based on the amount of current flowing between the source and the drain. The transistor also includes an oxide semiconductor layer.
    • 即使输入足够高的电压来破坏元件,也能防止元件的损坏。 本发明的半导体器件以第一电压工作,并且包括当第一电压的绝对值高于参考值时改变第一电压的值的保护电路。 所述保护电路包括:控制信号生成电路,其基于所述第一电压生成第二电压,并输出所生成的第二电压; 和电压控制电路。 电压控制电路包括具有源极,漏极和栅极的晶体管,并且其根据输入到栅极的第二电压而导通或截止,从而基于第一电压的值是否改变第一电压的值 在源极和漏极之间流动的电流量。 晶体管还包括氧化物半导体层。