公开(公告)号：US08169761B2

公开(公告)日：2012-05-01

申请号：US12400799

申请日：2009-03-10

Applicant: Chih-Ting Yeh ,  Yung-Chih Liang ,  Shih-Hung Chen

Inventor： Chih-Ting Yeh ,  Yung-Chih Liang ,  Shih-Hung Chen

IPC: H02H9/00

CPC classification number: H03F1/523 ,  H01L27/0266 ,  H03F2200/441

Abstract: An ESD clamp circuit applied to a power amplifier is provided. The ESD clamp circuit includes a first line, a second line, a first circuit, a second circuit, an ESD detecting unit, a buffer unit, and an ESD clamp unit. The first line is coupled to the output terminal of the power amplifier. The first circuit is coupled to the first line. The second circuit is coupled to the first circuit. The ESD detecting unit is coupled to the first circuit and the second line. The buffer unit is coupled to the second circuit, the second line and the ESD detecting unit. The ESD clamp unit is coupled to the buffer unit, the first line and the second line. Therefore, at normal operation mode, the problem of signal loss caused by the leakage current of ESD clamp circuit can be avoided.

Abstract translation: 提供了应用于功率放大器的ESD钳位电路。 ESD钳位电路包括第一线，第二线，第一电路，第二电路，ESD检测单元，缓冲单元和ESD钳位单元。 第一行耦合到功率放大器的输出端。 第一电路耦合到第一线。 第二电路耦合到第一电路。 ESD检测单元耦合到第一电路和第二线。 缓冲单元耦合到第二电路，第二线路和ESD检测单元。 ESD钳位单元耦合到缓冲单元，第一线和第二线。 因此，在正常工作模式下，可以避免由ESD钳位电路的漏电流引起的信号损失问题。

公开(公告)号：US20100149703A1

公开(公告)日：2010-06-17

申请号：US12400799

申请日：2009-03-10

Applicant: Chih-Ting Yeh ,  Yung-Chih Liang ,  Shih-Hung Chen

Inventor： Chih-Ting Yeh ,  Yung-Chih Liang ,  Shih-Hung Chen

IPC: H02H9/04

CPC classification number: H03F1/523 ,  H01L27/0266 ,  H03F2200/441

Abstract: An ESD clamp circuit applied to a power amplifier is provided. The ESD clamp circuit includes a first line, a second line, a first circuit, a second circuit, an ESD detecting unit, a buffer unit, and an ESD clamp unit. The first line is coupled to the output terminal of the power amplifier. The first circuit is coupled to the first line. The second circuit is coupled to the first circuit. The ESD detecting unit is coupled to the first circuit and the second line. The buffer unit is coupled to the second circuit, the second line and the ESD detecting unit. The ESD clamp unit is coupled to the buffer unit, the first line and the second line. Therefore, at normal operation mode, the problem of signal loss caused by the leakage current of ESD clamp circuit can be avoided.

Abstract translation: 提供了应用于功率放大器的ESD钳位电路。 ESD钳位电路包括第一线，第二线，第一电路，第二电路，ESD检测单元，缓冲单元和ESD钳位单元。 第一行耦合到功率放大器的输出端。 第一电路耦合到第一线。 第二电路耦合到第一电路。 ESD检测单元耦合到第一电路和第二线。 缓冲单元耦合到第二电路，第二线路和ESD检测单元。 ESD钳位单元耦合到缓冲单元，第一线和第二线。 因此，在正常工作模式下，可以避免由ESD钳位电路的漏电流引起的信号损失问题。

公开(公告)号：US08654492B2

公开(公告)日：2014-02-18

申请号：US13441642

申请日：2012-04-06

Applicant: Chih-Ting Yeh

Inventor： Chih-Ting Yeh

IPC: H02H9/04

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H02H9/046 ,  H01L2924/00

Abstract: An electrostatic discharge (ESD) protection apparatus includes a clamp circuit, a detection circuit and a control circuit. The clamp circuit has a first terminal and a second terminal respectively coupled to a first rail line and a second rail line. In response to an ESD event, the clamp circuit generates a first coupling potential at its coupling terminal. The detection circuit, coupled to the coupling terminal of the clamp circuit and the second rail line, outputs a detection signal in response to the first coupling potential. The control circuit, coupled to the first and second rail lines, the detection circuit and the clamp circuit, outputs a conduction signal to a control terminal of the clamp circuit in response to the detection signal. The clamp circuit is conducted in response to the conduction signal so that ESD between the first and second rail lines is performed through the clamp circuit.

Abstract translation: 静电放电（ESD）保护装置包括钳位电路，检测电路和控制电路。 钳位电路具有分别耦合到第一轨道线和第二轨道线的第一端子和第二端子。 响应于ESD事件，钳位电路在其耦合端产生第一耦合电位。 耦合到钳位电路和第二轨线的耦合端的检测电路响应于第一耦合电位而输出检测信号。 耦合到第一和第二轨线，检测电路和钳位电路的控制电路响应于检测信号向钳位电路的控制端输出导通信号。 钳位电路响应于导通信号而导通，使得通过钳位电路执行第一和第二轨线之间的ESD。

公开(公告)号：US20100296212A1

公开(公告)日：2010-11-25

申请号：US12538860

申请日：2009-08-10

Applicant: Yung-Chih Liang ,  Chih-Ting Yeh ,  Shih-Hung Chen

Inventor： Yung-Chih Liang ,  Chih-Ting Yeh ,  Shih-Hung Chen

IPC: H02H9/04

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H02H9/046 ,  H01L2924/00

Abstract: An electrostatic discharge (ESD) clamp circuit is provided. The ESD clamp circuit includes a first resistor, a second resistor, a first transistor, a second transistor, and a third transistor. A clamp device of the ESD clamp circuit is implemented by the third transistor. A parasitic capacitor of the third transistor forms a detection scheme along with the second resistor to detect the ESD. The first resistor, the second resistor, the first transistor, and the second transistor form a feedback scheme to control the third transistor for discharging the ESD current.

Abstract translation: 提供静电放电（ESD）钳位电路。 ESD钳位电路包括第一电阻器，第二电阻器，第一晶体管，第二晶体管和第三晶体管。 ESD钳位电路的钳位装置由第三晶体管实现。 第三晶体管的寄生电容器与第二电阻器一起形成检测方案以检测ESD。 第一电阻器，第二电阻器，第一晶体管和第二晶体管形成反馈方案以控制用于放电ESD电流的第三晶体管。

公开(公告)号：US09048101B2

公开(公告)日：2015-06-02

申请号：US13149176

申请日：2011-05-31

Applicant: Yung-Chih Liang ,  Chih-Ting Yeh

Inventor： Yung-Chih Liang ,  Chih-Ting Yeh

IPC: H01L27/02 ,  H01L23/60 ,  H01L23/62 ,  H02H9/04 ,  H02H3/20

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H01L2924/00

Abstract: One embodiment of the disclosure provides an electrostatic discharge protection circuit, including a first resistor, a p-type field effect transistor, a capacitance device and an n-type field effect transistor. The first resistor has a first terminal coupled to a first rail and a second terminal coupled to a first node. The p-type field effect transistor has a source coupled to the first rail, a gate coupled to the first node and a drain coupled to a second node. The capacitance device has a first terminal coupled to a second rail or the second node and a second terminal coupled to the first node. The n-type field effect transistor has a source coupled to the second rail, a gate coupled to the second node and a drain coupled to the first node.

Abstract translation: 本公开的一个实施例提供了一种静电放电保护电路，包括第一电阻器，p型场效应晶体管，电容器件和n型场效应晶体管。 第一电阻器具有耦合到第一导轨的第一端子和耦合到第一节点的第二端子。 p型场效应晶体管具有耦合到第一导轨的源极，耦合到第一节点的栅极和耦合到第二节点的漏极。 电容器件具有耦合到第二导轨或第二节点的第一端子和耦合到第一节点的第二端子。 n型场效应晶体管具有耦合到第二导轨的源极，耦合到第二节点的栅极和耦合到第一节点的漏极。

公开(公告)号：US20130128400A1

公开(公告)日：2013-05-23

申请号：US13441642

申请日：2012-04-06

Applicant: Chih-Ting YEH

Inventor： Chih-Ting YEH

IPC: H02H9/04

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H02H9/046 ,  H01L2924/00

Abstract: An electrostatic discharge (ESD) protection apparatus includes a clamp circuit, a detection circuit and a control circuit. The clamp circuit has a first terminal and a second terminal respectively coupled to a first rail line and a second rail line. In response to an ESD event, the clamp circuit generates a first coupling potential at its coupling terminal. The detection circuit, coupled to the coupling terminal of the clamp circuit and the second rail line, outputs a detection signal in response to the first coupling potential. The control circuit, coupled to the first and second rail lines, the detection circuit and the clamp circuit, outputs a conduction signal to a control terminal of the clamp circuit in response to the detection signal. The clamp circuit is conducted in response to the conduction signal so that ESD between the first and second rail lines is performed through the clamp circuit.

Abstract translation: 静电放电（ESD）保护装置包括钳位电路，检测电路和控制电路。 钳位电路具有分别耦合到第一轨道线和第二轨道线的第一端子和第二端子。 响应于ESD事件，钳位电路在其耦合端产生第一耦合电位。 耦合到钳位电路和第二轨线的耦合端的检测电路响应于第一耦合电位而输出检测信号。 耦合到第一和第二轨线，检测电路和钳位电路的控制电路响应于检测信号向钳位电路的控制端输出导通信号。 钳位电路响应于导通信号而导通，使得通过钳位电路执行第一和第二轨线之间的ESD。

公开(公告)号：US08243403B2

公开(公告)日：2012-08-14

申请号：US12538860

申请日：2009-08-10

Applicant: Yung-Chih Liang ,  Chih-Ting Yeh ,  Shih-Hung Chen

Inventor： Yung-Chih Liang ,  Chih-Ting Yeh ,  Shih-Hung Chen

IPC: H02H3/20 ,  H02H9/04

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H02H9/046 ,  H01L2924/00

Abstract: An electrostatic discharge (ESD) clamp circuit is provided. The ESD clamp circuit includes a first resistor, a second resistor, a first transistor, a second transistor, and a third transistor. A clamp device of the ESD clamp circuit is implemented by the third transistor. A parasitic capacitor of the third transistor forms a detection scheme along with the second resistor to detect the ESD. The first resistor, the second resistor, the first transistor, and the second transistor form a feedback scheme to control the third transistor for discharging the ESD current.

Abstract translation: 提供静电放电（ESD）钳位电路。 ESD钳位电路包括第一电阻器，第二电阻器，第一晶体管，第二晶体管和第三晶体管。 ESD钳位电路的钳位装置由第三晶体管实现。 第三晶体管的寄生电容器与第二电阻器一起形成检测方案以检测ESD。 第一电阻器，第二电阻器，第一晶体管和第二晶体管形成反馈方案以控制用于放电ESD电流的第三晶体管。

公开(公告)号：US20120161216A1

公开(公告)日：2012-06-28

申请号：US13149176

申请日：2011-05-31

Applicant: Yung-Chih Liang ,  Chih-Ting Yeh

Inventor： Yung-Chih Liang ,  Chih-Ting Yeh

IPC: H01L23/60

CPC classification number: H01L27/0285 ,  H01L2924/0002 ,  H01L2924/00

Abstract: One embodiment of the disclosure provides an electrostatic discharge protection circuit, including a first resistor, a p-type field effect transistor, a capacitance device and an n-type field effect transistor. The first resistor has a first terminal coupled to a first rail and a second terminal coupled to a first node. The p-type field effect transistor has a source coupled to the first rail, a gate coupled to the first node and a drain coupled to a second node. The capacitance device has a first terminal coupled to a second rail or the second node and a second terminal coupled to the first node. The n-type field effect transistor has a source coupled to the second rail, a gate coupled to the second node and a drain coupled to the first node.

Abstract translation: 本公开的一个实施例提供了一种静电放电保护电路，包括第一电阻器，p型场效应晶体管，电容器件和n型场效应晶体管。 第一电阻器具有耦合到第一导轨的第一端子和耦合到第一节点的第二端子。 p型场效应晶体管具有耦合到第一导轨的源极，耦合到第一节点的栅极和耦合到第二节点的漏极。 电容器件具有耦合到第二导轨或第二节点的第一端子和耦合到第一节点的第二端子。 n型场效应晶体管具有耦合到第二导轨的源极，耦合到第二节点的栅极和耦合到第一节点的漏极。