Meeting ITk LPNHE

Europe/Paris
Higgs 12-22-2-28

Higgs 12-22-2-28

Francesco CRESCIOLI (LPNHE), Giovanni Calderini (LPNHE Paris), Reina Camacho Toro (LPNHE), Stephanie Beauceron (LPNHE)
Description

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https://cern.zoom.us/j/94940524377?pwd=dnI4NnZUWGNMN1ZpRFJncFU1ZlMrQT09

 

Presents: Thibaud, Yahya, Thiziri, Reina, Francesco, Stephanie, Yann

General news:

  • 1st stage PRR
  • 2nd stage in October: more sites qualified, better yield

Probe station:

  • Mainteinance the 20/8
  • Liquid to be refilled
  • 2 IVs to be done
  • Is the Agilent working again?

Wirebonding:

  • Wirebonding chuck design not total clear, not possible to use it straightforward
  • Rectification of the surface: we don't have the equipment to go down the current 100 um
  • Ask our wirebonders to invite Saclay people to wirebond one module
  • Joystick repaired (?)

Metrology:

  • Vacuum pump mainteinance to be done

Parylene masking:

  • Waiting for tools from Liam
  • We could do the masking of the new modules

Testing:

  • Support for vacuum chuck new design is good
  • Production order is ongoing, but admin is not there these weeks
  • SQ to be done

Outer barrel wirebond protection:

  • Thiziri is @ CERN to test the glue thickness with glue on the test PCBs
  • It has been confirmed that the results are due to the specific tool used and not procedure/operator dependant
  • Resistivity: the hypothesis is that the stencil is not well aligned with the current flex pad location

Xray:

  • we emptied the nitrogen bottle
  • large box is too large
  •  
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