Charged Device Model (CDM)

The Charged Device Model (CDM) describes a type of electrostatic discharge that occurs when a fully charged electronic component—like a chip or circuit board—comes into contact or close proximity with a conductive surface or grounded object. This sudden transfer of stored static electricity can damage sensitive electronic parts. CDM is a common failure mode during manufacturing or handling. To prevent damage, protocols like grounding, proper handling, and protective equipment are used to dissipate static charge safely before contact, ensuring the integrity and longevity of electronic devices.