Patent ID: 6166418
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A high-voltage SOI thin-film transistor, comprising:a semiconductor body;an insulator layer disposed on said semiconductor body;a semiconductor thin film of a first conductivity type embedded in said insulator layer;a drain zone and a source zone both disposed in said semiconductor thin film and having a second conductivity type opposite the first conductivity type;a gate electrode disposed at said insulator layer;a plurality of field plates disposed between said gate electrode and said drain zone, each of said field plates of said plurality of field plates forming a slope having an increased distance from said semiconductor thin film at an increased distance from said gate electrode; and each of said field plates in said plurality of field plates having an increased maximum distance from said semiconductor thin film at an increased distance from said gate electrode than a field plate that is closer to said gate electrode; andan equal number of highly doped zones as field plates in said plurality of field plates, said highly doped zones being of the second conductivity type and disposed in said semiconductor thin film and respectively connected to said plurality of field plates.