CERN Accelerating science

ATLAS Note
Report number	ATL-ITK-PROC-2022-024
Title	Quality Control Testing of the AMAC ASIC for the HL-LHC ATLAS ITk Strip Detector
Author(s)	Gosart, Thomas Christopher (University of Pennsylvania (US)) (+) ; Gutierrez Zagazeta, Luis Felipe (University of Pennsylvania (US)) ; Keener, Paul (University of Pennsylvania (US)) ; Kroll, Joseph Ira (University of Pennsylvania (US)) ; Lu, Sicong (University of Pennsylvania (US)) ; Mayers, Godwin Mc Sherwood (University of Pennsylvania (US)) ; Newcomer, Mitchell Franck (University of Pennsylvania (US)) ; Nikolica, Adrian (University of Pennsylvania (US)) ; Reilly, Michael Bendl (University of Pennsylvania (US)) ; Thomson, Evelyn Jean (University of Pennsylvania (US))
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2023
Imprint	19 Oct 2022
Number of pages	6
In:	JINST 18 (2023) C02013
In:	Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C02013
DOI	10.1088/1748-0221/18/02/C02013
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	FUTURE ; ITk ; AMACStar
Abstract	The high-luminosity upgrade to the LHC (HL-LHC) requires an all new inner detector, the Inner Tracker (ITk), composed of strips and pixels subsystems. The AMACStar is one of three radiation hard ASICs that will be installed on the ITk strip modules. Its function is to autonomously monitor and control the temperatures, voltages, and currents in the module components, preventing these quantities from reaching dangerous levels. A total of 18000 AMACStars are needed for the detector requirements. Wafers of these chips are probed at the University of Pennsylvania; comprehensive probe-station testing software and procedures have been developed in order to test the digital and analog functionality of every AMACStar. A detailed grading scheme is applied to determine which chips should be installed on the modules. The results from the pre-production and production priming satisfy the required 90% yield needed for production goals. Production of AMACStar will begin in 2023.

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