SEMICONDUCTOR DETECTOR

摘要

A semiconductor detector (100). The semiconductor detector comprises a semiconductor crystal (101), a cathode (102), an anode (103), and at least one stepped electrode (104, 105). The semiconductor crystal (101) comprises a top surface (101-2), a bottom surface (101-1), and at least one side surface (101-3, 101-4). The cathode (102), the anode (103), and the stepped electrode (104, 105) are all conductive thin films deposited on the surface of the semiconductor crystal (101). The cathode (102) is disposed on the bottom surface (101-1) of the semiconductor crystal (101). The anode (103) is disposed on the top surface (101-2) of the semiconductor crystal (101). The stepped electrode (104, 105) is disposed on the at least one side surface (101-3, 101-4) of the semiconductor crystal. The stepped electrode (104, 105) comprises multiple sub electrodes. The semiconductor detector can improve the energy resolution.