X-ray detector having a capacitance-optimized light-tight pad structure

US10211249B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Martin Groepl · Sonthofen, DE
• Edgar Goederer · Forchheim, DE
• Thomas Suttorp · Munich, DE

Key dates

• Filing date: Jun 3, 2016
• Grant date: Feb 19, 2019
• Expiry date: Jun 3, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2224/16146
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An x-ray detector includes a substrate including an electrically conductive connection between a read-out contact in the region of the top side of the substrate and an input of a pre-amplifier in an active layer of an integrated circuit. A first electrically conductive connection is provided between the read-out contact and a second electrically conductive connection. A surface of a first light protection is relatively larger than a surface of a light-permeable region of the first light protection. The second electrically conductive connection is provided within a second projection of the surface of the light-permeable region along the surface normal and below the second light protection. A third electrically conductive connection between the second electrically conductive connection and the pre-amplifier is provided below the second light protection. The input of the pre-amplifier is protected against direct incidence of light.