Electrostatic discharge protection device

A technology of electrostatic discharge protection and resistance-capacitance circuits, which is applied in the direction of circuits, electrical components, and electric solid devices, can solve the problems of electrostatic discharge protection device damage, thyristor rectifier burnout, and climbing, so as to improve performance, improve efficiency, and avoid damage damage effect

Inactive Publication Date: 2003-03-12
MACRONIX INT CO LTD
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Problems solved by technology

However, when the thyristor rectifier is accidentally triggered by the overshoot phenomenon caused by the moment the power is turned on, the action time of the electrostatic discharge is much shorter than the action time of the power on, and after the power is turned on, the voltage V is continuously supplied P , but because the thyristor rectifier misjudged the power-on event as an electrostatic discharge event, the thyristor rectifier did not match the supply voltage V P , the current I continues to rise, causing the thyristor rectifier to burn out due to overheating, such as image 3 shown
[0008] In view

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Embodiment Construction

[0050] The function of the electrostatic discharge protection circuit is to provide an appropriate path to pass through when an electrostatic discharge event occurs and before the electrostatic discharge pulse causes damage to the protected circuit, so as to avoid the circuit to be protected. However, the ESD protection circuit itself also needs to be able to handle the energy carried by the ESD pulse, so as not to cause damage to itself while guiding the ESD pulse. In addition, the electrostatic discharge protection circuit must be designed so that it will be triggered when an electrostatic discharge event occurs, otherwise it may affect the electrical stability of the components to be protected, and even cause damage to the electrostatic discharge protection circuit itself. reduce its effectiveness. Therefore, in order to prevent the ESD protection circuit from being activated abnormally due to the overshoot of the power activation, the present invention provides an ESD prot...

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Abstract

The invented electro-static discharge (ESD) protection device utilizes the resistance-capacitance (RC) circuit to distinguish between the overshoot phenomenon caused at the moment of the power and the event of static discharge. Thus for example, the ESD protection device ensures the normal operation of the modified lateral silicon controlled rectifiers (MLSCR), prevents the MLSCR from the unexpected triggering caused by the overshoot at the moment of the power on so as to increases the effectiveness of he ESD protection device.

Description

technical field [0001] The present invention relates to an electrostatic discharge (Electro-Static Discharge; ESD) protection device, in particular to an electrostatic discharge (ESD) protection device which uses a resistance capacitance (Resistance Capacitance; RC) circuit to isolate the An electrostatic discharge protection device with a modified lateral thyristor rectifier (Modified LateralSilicon Controlled Rectifiers; MLSCR) for overshoot (Overshoot) phenomenon and electrostatic discharge event (Event). Background technique [0002] When two non-conductive objects are in contact with each other, electrons may be transferred, which will cause the two non-conductive objects to generate additional charges. This additional charge is static electricity. Electrostatic discharge occurs when the static electricity accumulated on an object discharges to an object with a relatively low potential. In general, the generation of electrostatic discharge can be divided into two categ...

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Application Information

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IPC IPC(8): H01L23/60
Inventor 苏醒赖纯祥刘孟煌卢道政
Owner MACRONIX INT CO LTD
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