Patent ID: 9547089
Date: 2017-01-17
CPC Classifications: G01T,H01L,Y02E

Claim:
1. An ionizing radiation sensor in a form of a p-i-n structure, containing: a high-resistance silicon substrate of n-type conductivity, on a front working side of which there are p-regions and a masking coating of SiO aluminum metallization; passivating layer; on a back side of the substrate, there are a high-doped layer of an n-region and an aluminum metallization; wherein at least one p-region is located in a central part of the substrate and occupies most of the surface area, forming an active region of the sensor, and at least two p-regions in a form of circular elements are located in an inactive region on a perimeter of the substrate to decrease a surface current value and ensure a smooth voltage drop from the active region to the substrate perimeter; in the SiO