Patent ID: 6184555
Filing Date: 2001-02-06
Classification: H01L

Abstract:
Field effect-controlled semiconductor component comprising a semiconductor body with a top surface having:a) an inner zone of the first conduction type that adjoins the top surface of the semiconductor body;b) a drain zone that adjoins the inner zone;c) at least one base zone of the second conduction type that is embedded in the top surface of the semiconductor body;d) at least one source zone of the first conduction type embedded in the base zone;e) at least one source electrode that in each case makes contact with the base zone and the source zone embedded therein;f) a gate electrode that is insulated from the semiconductor body;g) a multiplicity of depletion zones of the second conduction type and one or more complementary depletion zones of the first conduction type are embedded in the inner zone, the depletion zones floating in the inner zone, the total amount of impurity dopant in the depletion zones being approximately equal to the total amount of impurity dopant in the complementary depletion zones; andcharacterized in that(h) trenches extend from the top surface into the inner zone in the intercell zones, the trenches being filled with insulator and being provided on their trench walls with depletion zones and complementary depletion zones arranged in pairs.