CMS Outer Tracker Phase-2 Upgrade module noise and mitigation

Journal of Instrumentation, vol. 17, pp. C12008

Abstract

Abstract The CMS Outer Tracker phase-2 upgrade silicon modules are required to reach noise levels close to the ones expected from the analogue front-end attached to an ideal pixel/strip. Module prototypes, featuring the latest and final prototype hybrids before the production, showed noise that was higher than the expected which could pose a problem in terms of achieving the hit efficiency target. Investigations, reveal the failure modes which are modelled in order to guide mitigation tweaks for the production designs. Knowledge acquired from the investigations along with the noise mitigation design changes implemented on the production hybrids are presented.

Authors 6

1. G. Blanchot

   European Organization for Nuclear Research

   Affiliation as printed

   CERN, CH-1211 Geneva 23, Switzerland

2. M. Kovacs

   European Organization for Nuclear Research

   Affiliation as printed

   CERN, CH-1211 Geneva 23, Switzerland

3. S. Maier corresponding

   Karlsruhe Institute of Technology

   Affiliation as printed

   KIT Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

4. I. Mateos

   European Organization for Nuclear Research

   Affiliation as printed

   CERN, CH-1211 Geneva 23, Switzerland

5. Alexander Josef Pauls Aachen I. Physikalisches Institut

   RWTH Aachen University

   Affiliation as printed

   I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany

6. K. Schleidweiler

   Ministère de l'Europe et des Affaires étrangères

   Affiliation as printed

   Ministere des affaires étrangères et européennes, 37 Quai d’Orsay, 75007 Paris, France

   Ministere des affaires étrangères et européennes, 37 Quai d'Orsay, 75007 Paris, France