Radiation-sensitive semiconductor body having an integrated filter layer

摘要

A radiation-sensitive semiconductor body which has at least one radiation-absorbent active area (2) between at least two contact layers (6, 7) and which receives electromagnetic radiation in a wavelength range between lambda1 and lambda2 where lambda2>lambda1. A filter layer (5) is arranged between the active area (2) and a radiation input surface (9). The active area (2) detects electromagnetic radiation at a wavelength below lambda2. The filter layer (5) absorbs electromagnetic radiation at a wavelength below lambda1, and passes electromagnetic radiation at a wavelength above lambda1.