CERN Accelerating science

CMS Note
Report number	CMS-CR-2018-017
Title	The CBC3 readout ASIC for CMS 2S-modules
Author(s)	Uchida, Kirika (Imperial Coll., London) ; Auzinger, Georg (CERN) ; Bell, Stephen Jean-marc (Rutherford) ; Borg, Johan (Imperial Coll., London) ; Braga, Davide (Rutherford) ; Goldstein, Joel (Bristol U.) ; Hall, Geoffrey (Imperial Coll., London) ; Jones, Lawrence (Rutherford) ; Key-Charriere, M ; Murray, P ; Seif El Nasr, Sarah (Bristol U.) ; Pesaresi, Mark Franco (Imperial Coll., London) ; Prydderch, Mark Lyndon (Rutherford) ; Raymond, David Mark (Imperial Coll., London)
Publication	2018
Imprint	30 Jan 2018
Number of pages	16
Presented at	11th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD11) in conjunction with 2nd Workshop on SOI Pixel Detectors (SOIPIX2017) at OIST, Okinawa, Japan, Okinawa, Japan, 10 - 15 Dec 2017
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Keywords	SiliconTracker
Abstract	The CBC3 is the latest version of the CMS Binary Chip for readout of the outer radial region of the upgraded CMS Tracker at the High Luminosity LHC. This 254-channel, 130 nm CMOS ASIC is designed to be bump-bonded to a substrate to which sensors will be wire-bonded. It will instrument double-layer 2S-modules, containing two overlaid silicon microstrip sensors, aligned with a parallel orientation. On-chip logic identifies Level-1 trigger primitives from high transverse-momentum tracks by selecting correlated clusters in the two sensors. The CBC3 was delivered in late 2016; wafer probing and performance tests have been carried out. Several prototype modules using the CBC3 have been produced and tested in the lab and in different beams. The results show that the CBC3 satisfies CMS requirements and only small corrections are needed for the final version of the chip for production.
Copyright/License	Preprint: (License: CC-BY-4.0)