Patent ID: 7989921

Claim:
A silicon on insulator device having a surface and comprising: an isolation trench defining a vertical drift zone; a buried insulating layer to which said isolation trench extends; an electrode region for emitting charge carriers, said electrode region being formed adjacent to said insulating layer, being in contact with said drift zone and comprising first strip-shaped portions having a first type of doping and second strip-shaped portions having a second type of doping that is inverse to said first type of doping; a first sidewall doping of said first type of doping, said first sidewall doping provided at a first sidewall of said isolation trench; and a second sidewall doping of said second type of doping, said second sidewall doping provided at a second sidewall of said isolation trench; wherein said first strip-shaped portions are electrically connected to said first sidewall doping and said second strip-shaped portions are electrically connected to said second sidewall doping thereby enabling a separate electrical contact of said first and second strip-shaped portions from said surface of the silicon on insulator device.