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Endcap Module Status

Endcap Module Status. Agreed Responsibilities Overall Production UK Situation Global Schedule Issues General Production Issues. Agreed Module Distribution. Overall Production. Proceeds smoothly ~816 module starts (35% of total) 70% tested of which

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Endcap Module Status

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  1. Endcap Module Status Agreed Responsibilities Overall Production UK Situation Global Schedule Issues General Production Issues

  2. Agreed Module Distribution

  3. Overall Production • Proceeds smoothly • ~816 module starts (35% of total) • 70% tested of which • Yield: 88% (good), 92%(good+pass) Still OK but seems to be dropping slightly • Components: • No stocks building up for spines or hybrids • Very vulnerable to component delays http://ific.uv.es/~lacasta/ECproduction/

  4. Site Starts Bonded Unbonded Good Tested Total Incomplete Failing Tested OK Fail Total UK Outers in Database as of 31/8/04 UK Middles in Database as of 31/8/04 Thanks to Joe Foster for summary

  5. Overall Schedule UK Modules • Still some delay • Foreseen to finish last module by end June 2005 • GVA and MPI have increased their production rates • Could be earlier (during May) if sites soon approaching their agreed number of modules, keep their production lines running. • VLC helps MPI with middles • NIKHEF helps Freiburg with Inners • Melbourne has to start very soon. • Already pre-qualified.

  6. Production Issues • Disk measurements showed redundancy link operation increases noise: • Trials have led to new (screened) links and requirement to change module 5.1kΩ resistor on redundancy line • All UK modules at Liverpool now have shorted out resistor with 0Ω resistor following procedure proposed by Freiburg • 20% sample test show identical normal electrical performance after change • All new hybrids have 0Ω resistor • Disk results with these changes greatly improved, disc9C mounting to begin • Repeat of contamination/erosion of tracks on fan-in after thermal cycling. • Seen in one early Liverpool Module • Now seen on two MPI modules in the same place as at Liverpool • Chemical analysis soon at CERN • Spine QA and delivery still critical • Prague CTU and Melbourne still to qualify • Most other sites producing at or above original envisaged rates and UK is nearing half-way

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