3D silicon detectors-status and applications

3D silicon technology is a new way to make silicon detectors using Micro-Electro-Mechanical-Systems (MEMS) processing. In this innovative design the electrodes penetrate through the silicon bulk perpendicular to the surface. Two types of device have been developed-3D and planar 3D. Both use an edge electrode that eliminates the need for guard rings and provides sensitivity to within a few microns of the edge. 3D technology and its advantages are reviewed and examples of the two types of device are shown.