Page History

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• Ring Loading Tooling, 19-1 RD53a
• Handling Frame, 19-1 RD53a OB Stave
• Shipping Box, 19-1 RD53a OB Stave
• Stave Loading Tooling, 19-1 RD53a OB Stave
• Stave Loading Tooling, 19-1 RD53a IB Stave

Ring Loading Tooling

Ring loading glue locations drawing (not released): REF-000160474 (LOADING FIXTURE, 19-1 RING).pdf

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Interface block to join Stave and Handling Frame (drawing not released):

Shipping Box:

Stave Loading Tooling, 19-1 OB Stave

Version 2, revised, Stave Loading Tooling drawing drafts (not released):

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Loading Tooling, OB Stave:

Section view:

Summary of requirements for loading 19-1 Outer Barrel Stave:

• Load RD53a Quad modules (drawings: 150um, 400um) with connectors oriented as shown in picture above
• Load modules onto 19-1 OB Stave (no drawing yet, preliminary CAD on LBL Windchill site)
• Load without collisions: 200um nominal gap / 100 micron minimum gap between modules (no assembly drawing yet showing modules on stave)
• Glue layer thickness to be 100um -50/+100um
• ESD protection during loading: grounding of tooling
• Mechanical protection of wire bonds during loading: stay clear of wire bonds, handle modules using tooling only, consider covers/shields
• Baseplate to be installed onto glue robot: weight limit 7kg (per manual)
• Stave to be removed from baseplate and transferred to test box for QC testing

Summary of different requirements for loading 19-1 Inner Barrel Stave:

• Load Triplet modules (drawing, .step)
• Load onto 19-1 IB Stave (no drawing yet, preliminary CAD on LBL Windchill site)
• Load without collisions: 200um nominal gap / 100 micron minimum gap between modules (no assembly drawing yet showing modules on stave)

Summary of specifications:

• Closely toleranced pins/bushings – same approach as used for 19-0 tooling
  • Requirement: +/-75um module position tolerance in local support coordinate system (per requirements document "ITk Pixel Module Loading Accuracy Requirements" AT2-IP-ES-006-v3)
  • Distribute tolerances:
    • +/-50um module position relative to loading tooling baseplate coordinate system (to avoid collisions with 100um gap between modules).
      • Dowel pins in baseplate – two per module location.
      • Bridge to have bushing and slot for precision fit onto dowel pins.
    • +/-25um local support position relative to loading tooling baseplate coordinate system (to accurately place modules to meet +/-75um requirement).
      • Dowel pin in baseplate – to accurately locate one end of the Stave in Z.
      • Tooling to fasten to mounting features on ends of Stave.
• Glue with beads to control glue layer thickness
  • 100um dia beads, for ~75um glue layer thickness on carbon fiber.
  • Loading tooling does NOT control the glue layer thickness.
    
    • Loading bridge to rest on the module's pickup areas (vacuum pad locations) during gluing.
    • Loading bridge to have micrometer adjusters to level the tool relative to the baseplate – to apply pressure at all vacuum pad locations during gluing.
    • Loading bridge to have micrometer adjusters to level the tool relative to the pickup table – to make good contact between vacuum pads and module.
• Vacuum pads to pick up modules
  • Vacuum pads to fit within clear areas on modules.
  • Height adjustment of vacuum pads while on pickup table.
  • Vacuum to securely hold modules.
• Tolerances:
  • Module position relative to loading tooling baseplate (need +/-.050mm):
    • Baseplate has:
      • Dowel pin, stepped, 6mm OD, h7 tolerance. (Misumi SWPG6-P6-Q5.5-L12-B12-E3-F15)
      • Dowel pin, stepped, 8mm OD, h7 tolerance. (Misumi HWPG6-P8-Q7.5-L11-B12-E3-F15)
    • Loading bridge has:
      • Bushing, 8mm ID, G6 tolerance. (Misumi JBAUN8-20)
      • Machined slot, 6mm internal width, G6 tolerance.

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• Stave length (flat region): 491.6mm
• RD53a (19-1)
  
  • Modules length: 12*(41.1mm+.2mm)=495.6mm
  • 12 modules would result in 4mm overhang beyond end of stave. Plan not to load full stave anyway due to module availability.

Image Added

• ITkPixV1 100um
  • Modules length: 12*(40.7mm+.2mm)=490.8mm
  • Appears to fit onto Stave. Module pitch (40.9mm) different from 19-1 pitch (41.3mm) so can't re-use 19-1 toolingwould need to make a new baseplate with this pitch.
• RD53a Triplet (19-1)
  • Modules length: 8*(61.29mm+.15mm)=491.52mm
  • Appears to fit onto Stave.

Stave Loading Tooling, 19-1 IB Stave

Requirements - see OB Stave requirements above.

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Summary of different requirements for loading 19-1 Inner Barrel Stave:

• Load Triplet modules (drawing, .step)
• Load onto 19-1 IB Stave (no drawing yet, preliminary CAD on LBL Windchill site)
• Load without collisions: 200um nominal gap / 100 micron minimum gap between modules (no assembly drawing yet showing modules on stave)