During antena error in metal chargers will accoumulate.
1) those are posive charges or negetive charges???
2) how the diffution can became a path to charges in antena
Any diffusion is residing in silicon, i.e. either directly in substrate, or via a junction (even in break down direction this is non-destructive at these low antenna currents).
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Any diffusion is residing in silicon, i.e. either directly in substrate, or via a junction (even in break down direction this is non-destructive at these low antenna currents).
non-destructive means the antenna diode won't be destructed by those small currents from draining-off antenna charges.
The charges captured by the metal antennas are drained-off from metal via contact to diffusion, and via the antenna diode to well resp. substrate.
Consider all silicon areas are connected to GND during the fabrication processes.