Patent ID: 6541804
Filing Date: 2003-04-01
Classification: H01L

Abstract:
A junction-isolated lateral MOSFET for a high-/low-side switch, comprising:a semiconductor body of a first conductivity type; a first main surface and a second main surface substantially opposite said first main surface; a source zone and a drain zone each of a second conductivity type extending from said first main surface at a distance from one another into said semiconductor body; a surrounding region of the first conductivity type surrounding said drain zone and said source zone at an outer periphery thereof; an insulating layer and a gate electrode disposed on said first main surface in a region between said source zone and said drain zone; a ground connection grounding said semiconductor body at said second main surface; a region of the first conductivity type extending between said source zone and said drain zone from said first main surface into said semiconductor body, said region of said first conductivity type having a doping concentration between a doping concentration for a breakdown charge and twice the doping concentration for the breakdown charge.