Patent ID: 8247840
Filing Date: 2012-08-21
Classification: H01L,H03K

Abstract:
1. An apparatus, comprising: a well area having a first doping type of a metal-oxide-silicon (MOS) transistor formed on a silicon-on-insulator (SOI); a polysilicon gate of said MOS transistor positioned over said well area for separating a source region and a drain region, both of a second doping type, of said MOS transistor; a gate oxide separating all portions of said well area from overlying polysilicon regions; a doped region of said first doping type for enabling contact to said well area; at least one finger of thin film silicon extending from said gate area of said MOS transistor to abut with said doped region, said at least one finger protecting an underlying well region from said second doping type source and/or drain, such that an extension of said at least one finger enables said well area retain a doping character of said first doping type and form a connectivity tunnel through said source of said second doping type or said drain of said second doping type to said doped region of said first doping type; and at least one forward biased junction diode coupled between said gate and said well through said doped region and conducting path.