Electrostatic Discharge (ESD) Protection of Consumer Electronics: Challenges and Solutions
Grounded-gate NMOS, commonly known as ggNMOS, is an electrostatic discharge (ESD) protection device used within CMOS integrated circuits (ICs). Such devices are used to protect the inputs and outputs of an IC, which can be accessed off-chip and are therefore subject to ESD when touched. An ESD event can deliver a large amount of energy to the chip, potentially destroying input/output circuitry; a ggNMOS device or other ESD protective devices provide a safe path for current to flow, instead of through more sensitive circuitry. ESD protection by means of such devices or other techniques is important to product reliability: 35% of all IC failures in the field are associated with ESD damage.
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