Speaker
Description
The Circular Electron Positron Collider (CEPC) has been proposed as a Higgs Factory and aimed for high precision measurement of the Higgs boson. Collisions at lower center-of-mass energies will also allow precision measurement of electroweak observables. To fulfill the stringent requirement of precision tracking of charged particles, the tracking system must be constructed with the state-of-the-art detector technologies. Silicon sensors fabricated with High Voltage CMOS (HV-CMOS) process have become one of the most attractive device for high performance tracking. It allows integration of sensing element and readout electronics on the same silicon bulk, and provides high spatial resolution, high time resolution, fast readout and radiation tolerant. Sensors thinned down to 100 um or even lower will also reduce the material budget of the tracking system. In this talk, the HV-CMOS sensor concept will be introduced followed by test results of the prototype sensor and new development. The demonstrator and the tracking system design based on HV-CMOS will be also presented.
