1 / 14

PACS CRE development

PACS CRE development. Ybe Creten, Patrick Merken, Jan Putzeys, Vic Fonderie, Chris Van Hoof IMEC. Overview. CRE and FEE design and design status CRE/FEE Schedule and milestones CRE and FEE Problems and possible solutions PA/QA: AIV plan and activities PA/QA: Key Inspection Points

abiola
Download Presentation

PACS CRE development

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PACS CRE development Ybe Creten, Patrick Merken, Jan Putzeys, Vic Fonderie, Chris Van Hoof IMEC PACS CRE

  2. Overview • CRE and FEE design and design status • CRE/FEE Schedule and milestones • CRE and FEE Problems and possible solutions • PA/QA: AIV plan and activities • PA/QA: Key Inspection Points • Conclusions PACS CRE

  3. CRE design and design status • At IIDR: • CRE input stage in spec (in terms of gain/debiasing, noise and power) • smallest Cint not functional but solution identified • linearity of output stage out of spec but solution identified on separate buffer • QM CRE design iteration • CRE122000 linearity of output stage • CRE032001 smallest Cint • CRE102001 increased dynamic range PACS CRE

  4. CRE design and design status (ctd) • Status of CRE122000/CRE032001 • meet key CRE specifications: • gain/debiasing, noise, power consumption • linearity of output buffer • do not meet • dynamic range (<2V, marginally acceptable) • starting point of integration ramp • smallest Cint linearity (“integrates”) • results of IMEC confirmed by CSL PACS CRE

  5. CRE design and design status (ctd) • Status of CRE102001: • in addition meets dynamic range requirement • shows smallest Cint approaching linearity spec (absolute value tbc) CRE102001 CRE032001 PACS CRE

  6. CRE Substrate design and design status • QM_1 without shortcircuit resistors (baseline design) • QM_2 model (featuring additional resistors) • Two production runs • with BCB (adhesion deficient) • without BCB (_NB) to deliver sufficient assemblies • QM_3 model made (to accommodate interface changes) • Available (no BCB version) PACS CRE

  7. Harness Substrate design and design status • Harness QM_1 (baseline design) • Harness QM_2 model (and QM_2NB without BCB) • Harness QM_3 model in preparation = FM model additional reference lines and reduced (3) temperature sensor connections ; FM harness substrates scheduled for April 2002 PACS CRE

  8. FEE status • Multiple FEE assemblies made • QM_1 FEE delivered 6 July 2001 • 8 CRE082000 on QM_1 substrate delivered • QM_2 FEE failed • 6 CRE032001 on QM_2 substrate shorted during bonding • QM_2 FEE recovery • 3 CRE032001 on QM_2 substrate tested and delivered to MPE in November 2001 • 3 CRE032001 on QM_2_NB substrate in stock (different R_mirror) • 13 CRE032001 on QM_2_NB assembled, tested and delivered to CSL (December 2001) • QM_3 FEE • 25 CRE102001 on QM_3 substrate (29 in process) • plan: phased assembly/test/delivery until Jan. 2002 • 29 assembled in February 2002 • Presently in test • Full delivery mid March 2002 PACS CRE

  9. Schedule and Milestones M1 met M2 met M3 met 12/2001 M4 moves to 03/2002 M5 moves to 04/2003 PACS CRE Delayed start date TBC

  10. Schedule: Implications of FM delivery date • Counting back from FM delivery date FM tapeout today 11/07/02 29/10/02 6/02/03 11/04/03 06/01/03 CRE FM design 1 month CRE pretest 2 months FEE assembly/test 2 months CRE production Answers needed to several questions ! - absolute value Cint and background - Iout and Coutput adapation/redesign - latch-up tests on 12 modules - QM test results PACS CRE

  11. (Possible+Encountered) Problems and possible solutions PACS CRE

  12. PA/QA: AIV and Test plan • A general overview of the manufacturing of the FEE and Harness substrates: document PACS-IM-PL-001. • Incoming inspection of parts and materials which are used during the manufacturing/assembly of the FEE and Harness substrates: document PACS-IM-PL-002. • The assembly of the FEE substrates: document PACS-IM-PL-004 (draft). • Verification of the performance of the FEE: document PACS-IM-PR-001. • Critical items list: input provided • FMECA: input provided PACS CRE

  13. PA/QA: AIV and Key Inspection Points • FEE: each FEE is tested at room temperature and at 4 Kelvin. This test will indicate any error in bonding, resistor value, electrical connectivity, etc. • Harness substrate: Each harness substrate will be visually inspected before packaging (‘packing’). PACS CRE

  14. Conclusions • FEE deliveries • 3 FEE on QM_2 delivered for detector tests • 13 FEE on QM_2NB delivered for module tests • 25 FEE on QM_3 delivery pending (assembled and partially tested/accepted) • ‘Forced’ delay in start of FEE FM design. No ‘idle time’ due to this delay: • design/test: • of QM FEE in sufficient detail • for correction/change of Cint • assembly/inspection: • destructive bond-strength testing on spare FEE modules • ECP for modified CRE substrate and harness substrate • verification: cryogenic radiation setup and testing • AIV and test plans available PACS CRE

More Related