Patent ID: 6815793
Filing Date: 2004-11-09
Classification: H01L

Abstract:
A body of doped semiconductor material of at least one conduction type, which has a mean free path length for free charge carriers in the semiconductor material and has at least one area in which there is a mean free path length for the free charge carriers in the semiconductor material, this mean free path length being reduced relative to a mean free path length of the semiconductor material for the free charge carriers,whereby the area of reduced mean free path length has sections which follow one another in at least one certain direction and between which there is at least one region in which a greater mean free path length prevails relative to the reduced mean free path length for the free charge carriers in the semiconductor material, and whereby there is a distance between adjacent regions having a greater mean free path length relative to the reduced mean free path length, these regions being separated by a section of the area of reduced mean free path length which determines this distance, which depends on the absolute value of an electric field strength generated by applying a certain electric voltage to the body in the semiconductor material, this distance being smaller at a location of a lower absolute value and greater at a location of a higher absolute value.