11-15 February 2013
Vienna University of Technology
Europe/Vienna timezone

Development of thin edgeless silicon pixel sensors on epitaxial wafers

Not scheduled
50m
Vienna University of Technology

Vienna University of Technology

Gußhausstraße 25-29, 1040 Wien (Vienna), Austria
Board: 60
Poster Semiconductor Detectors

Speaker

Dr Maurizio Boscardin (FBK, CMM, Via Sommarive 18, I-38123 Povo (Trento), Italy)

Description

This paper reports the development of a novel p-on-n thin edgeless planar sensor for a hybrid pixel detector, compatible with the ALICE front-end electronics, fabricated by FBK-CMM on epitaxial material. The aim of this development is to manufacture a hybrid pixel detector of very low material budget compared to the state-of-the-art of such devices. This task has been carried on following a two-steps approach. First, pixel sensors fabricated on epitaxial wafers have been thinned down to 100 μm after bump deposition and then flip-chip bonded to ALICE readout chips. The performance of the detector has been studied in a beam test performed at the CERN SPS; results on detection efficiency and cluster size as a function of the depletion voltage, the discriminator threshold and the track incidence angle will be discussed. The second phase, the “active edge” concept has been exploited in order to reduce the dead area at the periphery of the device. An overview of the key technological steps and the first electrical characterization of this type of sensors will be given.
quote your primary experiment ALICE

Primary author

Dr Maurizio Boscardin (FBK, CMM, Via Sommarive 18, I-38123 Povo (Trento), Italy)

Co-authors

Costanza Cavicchioli (CERN) Dr Gabriele Giacomini (FBK, CMM, Via Sommarive 18, I-38123 Povo (Trento), Italy) Dr Giacomo Contin (INFN and Dipartimento di Fisica, Università di Trieste, Trieste, Italy) Dr Gianluca Aglieri Rinella (CERN) Dr Irina Rashevskaya (INFN and Dipartimento di Fisica, Università di Trieste, Trieste, Italy) Dr Luciano Bosisio (INFN and Dipartimento di Fisica, Università di Trieste, Trieste, Italy) Michel Morel (CERN) Michele Caselle (Politecnico di Bari) Dr Nicola Zorzi (FBK, CMM, Via Sommarive 18, I-38123 Povo (Trento), Italy) Dr Petra Riedler (CERN, Geneva, Switzerland) Dr Romualdo Santoro (CERN) Dr Sabina Ronchin (FBK, CMM, Via Sommarive 18, I-38123 Povo (Trento), Italy) Valerio Altini (Universita e INFN (IT)) Dr Vito Manzari (Sezione INFN, Bari, Italy)

Presentation Materials

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