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What is ESD (Electrostatic Discharge)?

Latest Updated:08/01/2005

Question:

ESD (Electrostatic Discharge)

Answer:

As the causes of destruction of a semiconductor device due to static discharge, the following four models are proposed:

(1) Human model
Model of destruction that occurs if charge built up in a human body is discharged when the body touches the device
(2) Machine model
Model of destruction that occurs if metallic equipment having a capacitance higher and a discharging resistance lower than a human body comes in contact with the device
(3) Device charging model
Model of destruction that occurs when charge is released from the pin of the device if the package or lead frame of the device is charged by friction
(4) Electric field induction model
Model in which destruction of the oxide film occurs if a device having a MOS structure is exposed to a high electric field

For details, refer to the Review of Quality and Reliability Handbook.
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