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UCSB 4-Hybrid Thermal Test System Status

UCSB 4-Hybrid Thermal Test System Status. 13 October 2003 Sam Burke Lance Simms UCSB HEP Group. Status. UCSB 4-Hybrid Thermal Test system is operational ARCS and ACDC software integrated so that test is a “one button” operation. Setup in UCSB Clean Room. UCSB Cold Box.

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UCSB 4-Hybrid Thermal Test System Status

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  1. UCSB 4-Hybrid Thermal Test System Status 13 October 2003 Sam Burke Lance Simms UCSB HEP Group CMS 4-Hybrid Test System Sam Burke EE

  2. Status • UCSB 4-Hybrid Thermal Test system is operational • ARCS and ACDC software integrated so that test is a “one button” operation CMS 4-Hybrid Test System Sam Burke EE

  3. Setup in UCSB Clean Room CMS 4-Hybrid Test System Sam Burke EE

  4. UCSB Cold Box CMS 4-Hybrid Test System Sam Burke EE

  5. Installing Hybrid/PA’s CMS 4-Hybrid Test System Sam Burke EE

  6. Pulser: Functional • Pulser had been triggering on noise. Needs to be synchronized with ARC Clock . • Twisted cable from ARC Controller card used • Eliminated noise in UCSB LVDS/CMOS Converter • No LVDS signals from ARC Controller Card CMS 4-Hybrid Test System Sam Burke EE

  7. LVDS Signal? • ARC Boards with functioning External Bus • Ser 29 • Ser 31 • ARC Boards with non-functioning External Bus • Ser 56 • Ser 57 • Ser 59 LVDS Signal Noise CMS 4-Hybrid Test System Sam Burke EE

  8. ARC Controller Problem • Bad Batch of ARC BOARDS: LVDS Driver and LVDS Receiver U32 and U33 were switched during board assembly. Problem was never discovered. • External Buss connector and associated IC’s on lower left of photo. U32 CMS 4-Hybrid Test System Sam Burke EE

  9. With Pulser Operational… • Opens detectable in “Scope Mode” Intentionally Plucked Bonds Show up in Pedestal Profile CMS 4-Hybrid Test System Sam Burke EE

  10. With Pulser Operational…. • Opens are also detectable in Pedestal & Noise Test Plucked Bonds CMS 4-Hybrid Test System Sam Burke EE

  11. Grounding Issues Huge spikes in noise at APV edges Same Problem CERN was having…. CMS 4-Hybrid Test System Sam Burke EE

  12. Using their same method… Ground lines connected to Support plate by silver strip Problem Solved: No more spikes CMS 4-Hybrid Test System Sam Burke EE

  13. Thermal Cycle Test Test Time: ~42 min. Three Sets of Tests: • Pedestal & Noise • Pulser • Short Detection CMS 4-Hybrid Test System Sam Burke EE

  14. Automated Test Results Final Report After Thermal Cycle Test: Lists -Shorts -Opens -Noisy Channels CMS 4-Hybrid Test System Sam Burke EE

  15. So Far At UCSB 6 Hybrids Bonded and Thermal Cycled Serial # Shorts Opens Failure at -20 30216711300712 30216711600699 30216711500720 30216711500730 30216711500732 30216711500733 No 0 0 No 0 0 No 0 0 No 0 0 0 0 No 0 No 0 CMS 4-Hybrid Test System Sam Burke EE

  16. And Now… • Building a new peltier plate in order to bring test time down • Goal: Loading + Testing + Unloading in ~50 minutes Nevertheless, ready to thermal test on mass scale CMS 4-Hybrid Test System Sam Burke EE

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