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Distribution Boards and FPU Harness Concept

Distribution Boards and FPU Harness Concept. R. Graue, D. Kampf Kayser-Threde. Distribution Board – Blue Detector. Distribution Board – Red Detector. Harness layout due to equal length of all detector modules. EM Breadboard. Distribution Board – Approved Design. Rigid-flex boards

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Distribution Boards and FPU Harness Concept

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  1. Distribution Boards and FPU Harness Concept R. Graue, D. Kampf Kayser-Threde PACS FPU

  2. Distribution Board – Blue Detector PACS FPU

  3. Distribution Board – Red Detector Harness layout due to equal length of all detector modules PACS FPU

  4. EM Breadboard PACS FPU

  5. Distribution Board – Approved Design • Rigid-flex boards • Material • PCB: FR4 • Flexible Harness: Polyimide • Layout shall be designed according to CNES QFT/SP.0019 • Connectors: Cannon MDM 3401029 01B .... FR139 • Capacitors: WIMA MKS 6,8 micro Farad, 50 VDC, 30 VAC • Resistors: RNC 55 according to ESA SCC 40001 001 PACS FPU

  6. Distribution board test matrix PACS FPU

  7. Distribution Boards – Functional Verification Plan • Incoming inspection according to inhouse procedures • Visual inspection (components, bonding points) • Measuring machine • Pin to pin continuity • Insulation • Cross talk ohmic resistance test • PCB layout test against Gerber data (automated inspection protocol) PACS FPU

  8. Distribution Boards Functional Check Out Test Plan on FPU level • Functional tests (prior and after cold vibration tests and during He temperature tests) • Complete detector chain operation required • Detection of Photoconductor signals (tbd by MPE) • Test operations controlled by COE (MPE-tbc) • Validation of signals by MPE (determination of nominal Photoconductor operation) PACS FPU

  9. CQM Distribution Board –Status - Completed Tasks I Design, Documentation and Components • PCB design completed • Manufacturing data package completed • ICD updated • CQM components tested /screened/released by ESA (Resistors, capacitors, connectors) PACS FPU

  10. CQM Distribution Board –Status - Completed Tasks IAssembly • EM Test board • Manufactured • Functional testing • Cryogenic cycling test (LN2) • Cryogenic vibration test (LHe) – Cryo STM test • CQM Boards • PCBs Manufactured and under inspection (NCR wrt anomalies) • PFM Boards • PCBs Manufactured and under inspection (see CQM) PACS FPU

  11. Distribution Board –Status – Open Work and Schedule • CQM Boards • Assembly • Functional testing • Cryogenic cycling test (LN2) • Qualification testing of bookbinder fabrication technology • Documentation (Inputs for DP) • Distribution board delivery until 11.2003 • PFM Boards • Asssembly and testing • Capacitor screening and distribution board delivery until 7.2004 PACS FPU

  12. Distribution Boards Cryo Qualification Test Matrix  Distribution Boards are Cryo Vibration Qualified PACS FPU

  13. Distribution Board - Open Points • PFM Capacitor screening (Updated procedure) • Verification test plan of PCB bookbinder technology manufacturing procedure in progress • Microscopic tests (e.g. cracks) • Thermal tests • Functional tests PACS FPU

  14. FPU Harness Architecture PACS FPU

  15. Harness – CQM/PFM Procurement Status • Harness designed and approved • Manufacturing data package released • CQM/PFM Manufacturing completed • CQM/PFM Hardware delivered and inspected • ICD approved • CQM harness under integration into FPU (CQM) PACS FPU

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