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A kind of electrostatic discharge immunity test method

An electrostatic discharge and test method technology, applied in the direction of testing dielectric strength, measuring electricity, testing circuits, etc., to achieve the effect of ensuring repeatability, improving repeatability and accuracy, and reducing influence

Active Publication Date: 2013-09-04
ARMY ENG UNIV OF PLA
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0011] The purpose of the invention is to propose a test method for electrostatic discharge immunity to solve the problems existing in the existing electrostatic discharge immunity test standards

Method used

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  • A kind of electrostatic discharge immunity test method
  • A kind of electrostatic discharge immunity test method
  • A kind of electrostatic discharge immunity test method

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Embodiment Construction

[0023] figure 1 It is an air discharge test system for electrostatic discharge immunity provided by the present invention to solve the problem of poor repeatability of air discharge. The system consists of three parts: bench test platform, single pendulum system and its braking system.

[0024] The single pendulum system and its brake system consist of electromagnet (1), electromagnet (2), position switch (3), fixed bracket (4), swing arm (5), fixed arm (6), discharge gun and its Fixing device (7) constitutes. The fixed bracket (4), the swing arm (5), the discharge gun and its fixing device (7) constitute a single pendulum system, one end of the swing arm (5) is connected to the fixed bracket (4) through a pulley, and the other end is connected to the discharge gun and its fixing device. device (7); the brake system includes two parts of mechanical brake and electromagnet brake device, the mechanical brake is undertaken by the fixed arm (6), and the electromagnet brake devic...

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Abstract

The invention discloses an electrostatic discharge immunity test method. Based on the principle of potential energy-kinetic energy conversion, this method realizes the accurate control of the approach speed of the air discharge electrode in the ESD immunity test; this method uses a metal shielding room and a coaxial adapter for the ESD immunity contact discharge test, which can not only ensure the The discharge current efficiently flows into the horizontal coupling plate or vertical coupling plate, and the integrity of the metal shielding room is not damaged as much as possible, thereby reducing the impact of the radiation field generated by the high-voltage switching action of the electrostatic discharge simulator on the equipment under test. The method can improve the repeatability and accuracy of air discharge and contact discharge in electrostatic discharge immunity test.

Description

[0001] Technical field [0002] The invention relates to an electrostatic discharge immunity test method, which is particularly suitable for the indirect electrostatic discharge immunity test of electronic equipment (system). Background technique [0003] With the rapid development of microelectronic technology and semiconductor device technology, the integration of various microelectronic devices has been greatly improved, which makes the electromagnetic sensitivity of electronic equipment (system) increase, while the ability to withstand overvoltage decreases. As a common near-field electromagnetic hazard, electrostatic discharge can cause direct and indirect damage to semiconductor devices or electronic systems. The American AD report (AD-A243367) clearly pointed out in 1991 that electrostatic discharge is an important part of electromagnetic environmental effects, and the peak electric field and magnetic field near the discharge are very strong. This is because the electr...

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Application Information

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IPC IPC(8): G01R31/14G01R31/00G01R29/08
Inventor 刘尚合胡小锋张希军武占成
Owner ARMY ENG UNIV OF PLA
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