esd保護(hù)設(shè)計(jì)研討會(huì)(英文)-免費(fèi)閱讀
【正文】 many ponents。California Micro Devices 2023/3/4 下午 01:54:38 1ESD Protection Design Seminar Jim SutherlandSenior Applications EngineerCalifornia Micro Devices 2023/3/4 下午 01:54:38 2Outline4 What is ESD?4 What damage can it cause?4 Why is the problem growing?4 What are the issues for the designer?4 How can we measure it?4 How can we protect equipment from ESD?California Micro Devices 2023/3/4 下午 01:54:38 3What Is ESD?4 ESD = Electro Static Discharge4 Generation Triboelectric (friction causes accumulation of charge) Induction (field induces charge)4 Discharge Dielectric (air) breakdown large board area 4 Integrated PN diodesCalifornia Micro Devices 2023/3/4 下午 01:54:38 15Integrated Diode Networks4 Superior downstream ESD protection High speed response ESD current steered to GND or VCC4 Minimum Signal Degradation (Low C)4 Minimal board space, weight4 Low assembly/manufacturing costs4 Minimal DesignIn Time4 Longterm reliabilityCalifornia Micro Devices 2023/3/4 下午 01:54:38 16Choosing an ESD Diode Network4 How many lines are needed? 4 How much capacitance? (. 5 pF)4 What is the HBM rating? (. 177。 large board area4 Discrete PN diodes Low capacitance。 Electric field increases when charged bodies approach each other Current flow into circuitry California Micro Devices 2023/3/4 下午 01:54:38 4ESD Damage of ICs4 Permanent Oxide breakdown, shorts,
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