AC-coupled segmented reading from continuous collection electrodes in semiconductor sensors

Position-sensitive radiation detection can be achieved with a continuous AC-coupled electrode with segmented contacts. This configuration allows for a good spatial resolution, provides a more uniform electric field than conventional segmented electrodes, and reduces production and electronic integration costs.

How does it work?

The present technology has highlighted how position-sensitive radiation detection is possible using a continuous electrode, as opposed to the conventional use of a segmented electrode. Surprisingly, it is sufficient for the contacts to be segmented to ensure position resolution. Since the electric field within the detector is determined by a bias applied to the electrodes, the resulting electric field is uniform. This uniformity of the field alleviates the disadvantages of the conventional approach with segmented electrodes. The use of a continuous electrode allows for a more economical production and simplified implementation of charge multiplication on the electrode with the highest field strength.

Applications

• Detectors.

Advantages

• More uniform electric field;
• Increased electronic integration;
• Lower incidence of radiation damage;
• Less precision in manufacturing;
• Reduced production costs.