ESD介绍(英文资料).pptx

ESD;ESD Presentation Outline;Charging Mechanisms;Triboelectrification;;Triboelectric Charging;Triboelectric Charging;Typical Charge Levels;Typical Charge Levels;Induction Charging;Charge by Induction;Problems;Problems;Problems;Problems;Problems;Discharge Models;;Machine Model;Charged Device Model;Charged Device Model;Grounding (first line of defense);Soft Grounds;Resistance Map;The Need for Standards;ESD Association Standards;;;Measuring Small Objects;Ionization;Ionization by Radiation;Corona Ionization;Corona Ionization;Corona Ionization;AC and Pulse DC Ionization;AC Ionization;Pulsed DC Ionization;DC Ionization;Efficiency and Balance;Testing Ionizers;How We Test Ionizers;How We Test Ionizers;Discharge (Decay) Tests;Float (Balance) Test;Charged-Plate Monitors (CPM’s);Properties of Charged, Isolated Conductors;Properties of Charged Insulators;Direct Measurement of Charge;Direct Measurement of Charge;Direct Measurement of Charge;;Contacting Electrometers;;Properties of Charged Objects;Fieldmeters;Fieldmeters;Fieldmeters;Simplest type of fieldmeter No system to improve drift and instability Won’t operate reliably in the presence of ionization Fieldmeters are grounded instruments and modify the data.;;Electrostatic Voltmeters;Electrostatic Voltmeters;AC-Feedback Voltmeter;AC Feedback Electrostatic Voltmeter;AC Feedback Electrostatic Voltmeter;Comparisons;Using Voltmeters and Fieldmeters;Using Voltmeters and Fieldmeters;Auditing;;Summary;Summary