{TAIL ~ An apparatus} including an electrostatic discharge protection structure with {HEAD ~ a diac} in which substancially similar ESD protection is provided for both positive and negative ESD voltages appearing at the circuit electrode sought to be protected 
{ TAIL ~ An apparatus } including an electrostatic discharge protection structure with { HEAD ~ a diac } in which substancially similar ESD protection is provided for both positive and negative ESD voltages appearing at the circuit electrode sought to be protected
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH