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Hybrid & Module Testing Status

Hybrid & Module Testing Status. Week of 4/11-4/15. UCSB Hybrid Testing Results. Failed Hybrids 3 with Shorts in PA Repairable 1 Smashed APV-PA Bonds Repairable 1 Major Scratch in PA 2 Failed Initial Inspection 1 Broken Ceramic 1 Bad Bond Feet 1 Weak Wire Bonds 2 with unknown failure.

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Hybrid & Module Testing Status

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  1. Hybrid & Module Testing Status Week of 4/11-4/15

  2. UCSB Hybrid Testing Results • Failed Hybrids • 3 with Shorts in PA • Repairable • 1 Smashed APV-PA Bonds • Repairable • 1 Major Scratch in PA • 2 Failed Initial Inspection • 1 Broken Ceramic • 1 Bad Bond Feet • 1 Weak Wire Bonds • 2 with unknown failure

  3. FNAL Hybrid Testing Results • Failed Hybrids • 5 with Shorts in PA • Repairable • 7 Noisy channels-usually entire chip or chips • Still under study • 1 with too many open and noisy channels

  4. Hybrid Testing Outstanding Issues • Tests take 45-55 minutes for 4 hybrids • Meets current need (rate of <28 hybrids a day) • New code available which will reduce testing times by 10-15 minutes • Gives needed contingency for high rate production • Code under validation

  5. UCSB ARCS Testing Results • Failed Modules • 1 with >2% Bad Channels • Debris on sensor • 1 Bad DCU • 1 HV Shorted to CF Frame • 2 with >20 mA Bias Current • 1 leaky pinhole • 1 scratched sensor • 1 of the 5 failures was caused during module production and testing. • 3 failures due to problems in silicon prior to assembly • 1 failure is a hybrid or DCU failure

  6. UCSB ARCS Testing Issues • Need to confirm cuts on TEC modules • Getting some confusion between 1SO/2SO • Have not produced TEC R6 modules in a year • Working on validation of ARCS 8.0 • Currently using ARCS 7.2bugfix

  7. UCSB Module Quality • On the 378 modules using HPK modules: • 18 pinholes (plucked to be opens) • 47 shorts (plucked to be opens) • 45 noisy channels • 86 opens • Percentage of bad channels: <.1%

  8. FNAL ARCS Testing Status • Failed Modules • 1 – no readout • 1 Bad DCU • No failure attributable to module production • Both failures appear to be hybrid or chip related

  9. FNAL, 7835-8038 (204) HPK TOB modules ARCS tested (March 21 – April 22, 2005) • 7835-8038 (HPK, L56p, 204 total), 8039-8044 (HPK, L34p, 6 total) ARCSed. • 207 of 210 passed with grade A, 1 - with grade B. • Total amount of counted “known bad channels” is 19. Given that we have less than 0.1 bad channels per module.

  10. UCSB LT Testing Results • We are seeing a low level problem with low noise/mis-initialization of modules • Found that there is usually a resistive connection between extender and backplane • Reseating extender always fixes problem • Will need to watch to see if problem is worsening with time

  11. FNAL LT Testing Issues • Modules 30200020007883 – 7990 were tested during April 5 – April 18 period. • Modules 30200020007883-7889 • 30200020007979-7990 passed LT testing successfully with grade A. • Rest of all runs have problems with cold and last records. • Data cannot be processed: afs backup, xml uploading. • 80+ modules need to be retested. • Problem is being investigated with help from P. Gartung

  12. FNAL LT Testing Issues Details: lt scenario: -10 ChangeCool -20 dummy -60 TempReached dummy dummy -10 HardReset analoff analoff -10 CheckEnv dummy dummy -3600 CheckEnv dummy dummy -10 HardReset pllinit pllinit -10 CheckEnv dummy dummy -10 PedRun i2cpedpeak pedpeak -10 CalProfRun i2ccalpeak calpeak Problem occurs sometime between these lines. While switching the APV modes, FEC Server generates I2C errors for all modules.

  13. FNAL LT Testing Issues Current situation: Rolled back to original 12hrs scenario (without HardResets before each mode switching ), testing 6 modules per run, performed 3 runs: 1 failed, 2 last passed. Patrick suggested to remove HardResets at all. Wim Beaumont is informed, received several suggestions... First records for all tested modules is OK, no difference with ARCS data.

  14. FNAL LT Testing Status

  15. Overall US Production Quality • 1351 (98%) of the 1377 hybrids processed pass specification. • Xxx of yyyy (ZZ%) of module pass mechanical specifications. • 592 (99%) of the 599 modules ARCS tested are grade A or B. • Only 1 failure is directly related to module production. • 524 (99.8%) of the 525 modules LT tested are grade A or B.

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