摘要:
An electrostatic discharge (ESD) protection device including a substrate, a first doped region, a second doped region, and a third doped region, a gate and a plurality of contacts is disclosed. The substrate includes a first conductive type. The first doped region is formed in the substrate and includes a second conductive type. The second doped region is formed in the substrate and includes the second conductive type. The third doped region is formed in the substrate, includes the first conductive type and is located between the first and the second doped regions. The gate is formed on the substrate, located between the first and the second doped regions and comprises a first through hole. The contacts pass through the first through hole to contact with the third doped region.
摘要:
A circuit for electrostatic discharge (ESD) protection includes a resistor a capacitor connected in series with the resistor, a first transistor including a gate, the gate being connected to a first power supply providing a first voltage to the gate via the resistor and a first terminal connected to the first power supply, a second transistor including a gate, the gate being connected to a second power supply, the second power supply providing a second voltage smaller than the first voltage, the second transistor having a first terminal connected to a second terminal of the first transistor, and a third transistor including a gate, the gate being connected to the second power supply, a first terminal of the third transistor being connected to a second terminal of the second transistor, and a second terminal being connected to a reference voltage different from the first voltage and the second voltage.
摘要:
The invention discloses a transient voltage detection circuit suitable for an electronic system. The electronic system includes a high voltage line and a low voltage line. The transient voltage detection circuit includes at least one detection circuit and a judge module. Each detection circuit includes a P-typed transistor and/or an N-typed transistor, a capacitor and a detection node. The transistor is coupled with the capacitor, and the detection node is located between the transistor and the capacitor. The judge module is coupled to each of the detection nodes. The judge module generates a judgment according to voltage levels of the detection nodes. Accordingly, the transient voltage detection circuit is formed. The electronic system may selectively execute a protective action according to the judgment.
摘要:
A circuit for electrostatic discharge (ESD) protection includes a resistor a capacitor connected in series with the resistor, a first transistor including a gate, the gate being connected to a first power supply providing a first voltage to the gate via the resistor and a first terminal connected to the first power supply, a second transistor including a gate, the gate being connected to a second power supply, the second power supply providing a second voltage smaller than the first voltage, the second transistor having a first terminal connected to a second terminal of the first transistor, and a third transistor including a gate, the gate being connected to the second power supply, a first terminal of the third transistor being connected to a second terminal of the second transistor, and a second terminal being connected to a reference voltage different from the first voltage and the second voltage.
摘要:
A high-voltage tolerant power-rail ESD clamp circuit is proposed, in which circuit devices can safely operate under the high power supply voltage that is three times larger than their process limitation without gate-oxide reliability issue. Moreover, an ESD detection circuit is used to effectively improve the whole ESD protection function by substrate-triggered technique. Because only low voltage (1*VDD) devices are used to achieve the object of high voltage (3*VDD) tolerance, the proposed design provides a cost effective power-rail ESD protection solution to chips with mixed-voltage interfaces.
摘要:
A circuit for electrostatic discharge (ESD) protection includes a resistor a capacitor connected in series with the resistor, a first transistor including a gate, the gate being connected to a first power supply providing a first voltage to the gate via the resistor and a first terminal connected to the first power supply, a second transistor including a gate, the gate being connected to a second power supply, the second power supply providing a second voltage smaller than the first voltage, the second transistor having a first terminal connected to a second terminal of the first transistor, and a third transistor including a gate, the gate being connected to the second power supply, a first terminal of the third transistor being connected to a second terminal of the second transistor, and a second terminal being connected to a reference voltage different from the first voltage and the second voltage.
摘要:
The invention discloses a transient voltage detection circuit suitable for an electronic system. The electronic system includes a high voltage line and a low voltage line. The transient voltage detection circuit includes at least one detection circuit and a judge module. Each detection circuit includes a P-typed transistor and/or an N-typed transistor, a capacitor and a detection node. The transistor is coupled with the capacitor, and the detection node is located between the transistor and the capacitor. The judge module is coupled to each of the detection nodes. The judge module generates a judgment according to voltage levels of the detection nodes. Accordingly, the transient voltage detection circuit is formed. The electronic system may selectively execute a protective action according to the judgment.
摘要:
A high-voltage tolerant power-rail ESD clamp circuit is proposed, in which circuit devices can safely operate under the high power supply voltage that is three times larger than their process limitation without gate-oxide reliability issue. Moreover, an ESD detection circuit is used to effectively improve the whole ESD protection function by substrate-triggered technique. Because only low voltage (1*VDD) devices are used to achieve the object of high voltage (3*VDD) tolerance, the proposed design provides a cost effective power-rail ESD protection solution to chips with mixed-voltage interfaces.
摘要:
An electrostatic discharge (ESD) protection device including a substrate, a first doped region, a second doped region, and a third doped region, a gate and a plurality of contacts is disclosed. The substrate includes a first conductive type. The first doped region is formed in the substrate and includes a second conductive type. The second doped region is formed in the substrate and includes the second conductive type. The third doped region is formed in the substrate, includes the first conductive type and is located between the first and the second doped regions. The gate is formed on the substrate, located between the first and the second doped regions and comprises a first through hole. The contacts pass through the first through hole to contact with the third doped region.
摘要:
An ESD detection circuit for detecting a level of an ESD voltage on a power rail is provided. The ESD detection circuit includes a resistive component, a diode unit, and a controller. The resistive component is coupled between a detection node and a ground node corresponding to the power rail. The diode unit is coupled between the power rail and the detection node in a forward direction toward the power rail. The controller, coupled to the detection node, is used for determining the level of the ESD voltage based on the voltage of the detection node and the breakdown voltage of the diode unit.