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The End-of-Substructure card for the ATLAS ITk Strip Upgrade: Lessons learned from the full production

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2024

IEEE NSS MIC RTSD, IEEE NSS MIC RTSD, TampaTampa, USA, 26 Oct 2024 - 2 Nov 20242024-10-262024-11-02  GO

Abstract: The ATLAS Strip Tracker for HL-LHC consists of so-called modules that host the silicon sensors and the front-end electronics. These units are then mounted on mechanical structures, the so-called staves and petals, which are hosting up to 14 modules per side. An End-of-Substructure (EoS) card connects up to 28 data lines from the modules to and up to 12 lines from the lpGBT ASIC. The lpGBT then does (De-)Serialization and connects to the VL+ ASICs which then provides a 10 GBit/s optical data transmission to the off-detector systems respectively. The EoS is powered by a dedicated Dual-Stage DC-DC converter unit. As the both staves and petals host modules on both sides, two EoS are required for each stave and petal, however to reduce cabling, they are sharing a single voltage connector. While schematically the EoS cards are very closely related, especially for the barrel each layer requires a distinct layout, which adds complexity also for testing. As the EoS production of almost 2000 EoS cards and the accompanying 2000 DC-DC converters is going to be completed in fall 2024, we report on the production experience including detailed QC statistics. We conclude with a few lessons learned during the project duration.


Contributing Institute(s):
  1. LHC/ATLAS Experiment (ATLAS)
  2. Koordination Elektronik Entwicklung (FE)
  3. Digital-Elektronik Entwicklung (FEA)
  4. Analog-Elektronik Entwicklung (FEB)
  5. Technol. zukünft. Teilchenph. Experim. (FTX)
Research Program(s):
  1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
Experiment(s):
  1. LHC: ATLAS

Appears in the scientific report 2024
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Private Collections > >DESY > >FH > >FTX > FTX
Private Collections > >DESY > >FH > >FE > FEA
Private Collections > >DESY > >FH > >FE > FEB
Private Collections > >DESY > >FH > >FE > FE
Private Collections > >DESY > >FH > ATLAS
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 Record created 2024-11-26, last modified 2024-12-04


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