Status of the UK active pixel collaboration APS2

Status of the UK active pixel collaboration  APS2

Status of the UK active pixel collaboration APS2 Source measurements Without epi layer (APS3) First radiation test result(s) Summary & Outlook Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 4 pixel types, various flavours Std 3MOS 4MOS (CDS) CPA (charge amp) FAPS (10 deep pipeline) 3MOS & 4MOS: 64x64, 15m pitch, 8m epi-layer MIP signal ~600 e- 5.8 mm Jaap Velthuis (University of Liverpool) Row decoder/control

APS2 Design: R. Turchetta (RAL) 3MOS des. A 4MOS des. A 3MOS des. B 4MOS des. B 3MOS des. C 4MOS des. C 3MOS des. D 4MOS des. D 3MOS des. E

FAPS CPA des. A des. A FAPS des. B CPA des. B FAPS des. C CPA FAPS des. C 4MOS des. D des. E 4MOS CPA FAPS des. F des. D des. E 3MOS des. F Column amplifiers Column decoder/control ECFA04 September 1 2004 APS2 3&4MOS: Various flavours

Like E but with pwell as small as possible Des. F Like B but with four diodes in parallel Des. E Like B but with pwell as small as possible Des. D Like B but with gate-all-around transistors Des. C Like A but with smallest diode (1.2*1.2 m) Reference pixel (diode ~ 3*3 m) Des. B Production error

Gain too low Like C but with gate-all-around transistors Like B but with gate-all-around transistors Like A but with gate-all-around transistors Like A but the TX transistor has lower Vt Des. A 3_4MOS output 3MOS 4MOS Jaap Velthuis (University of Liverpool) ECFA04 Like A but the TX transistor has higher Vt Like 3MOS-A but with the TX transistor

September 1 2004 APS2: Source test Here only use 3MOS and 4MOS (no CDS) Calculate pedestals Average output after removing hits Calculate common mode noise Average pixel type output after pedestal subtraction Calculate random noise Sigma of pedestal and common mode corrected output Cluster definition Signal >8 seed Signal >2 next Jaap Velthuis (University of Liverpool) Fixed set up problem w.r.t. Paris meeting. Noise down by 50% as expected. ECFA04 September 1 2004

APS2: Some Clusters Cluster in S/N Number of pixels in a 3x3 cluster Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 APS2: Cluster signals Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 APS2 3&4 MOS summary Type

Specs S N S/N 3MOS E 4 diodes 991 4.940.0 20.1 2 0.3 3MOS C GAA 872 4.850.0 18.0 2 0.4 3MOS B Diode

1.2x1.2 921 3.870.0 23.8 1 0.2 3MOS A Diode 3x3 671 3.310.0 20.3 1 0.3 4MOS C Lower VT 101 2 4.140.0 24.4 2 0.4 Out of 12 substructures 7 display good S/N. 4MOS B Higher V

114 4.700.0 24.2 Two structures problems in2fabrication. 2 0.4 A Reference 111S/N 4.450.0 25.0 4MOS4MOS GAAs have too low for MIPs. 2 2 0.4 Bad pixels: 1-2% Need test beam experiment. T Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 APS3: std 3MOS Cluster in S/N Designed in TSMC 0.25m

Mixed Signal CMOS. Diode 1.2*1.2 m No epi-layer Large clusters Large signals Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 APS3: std 3MOS source test Huge cluster size Large signals Fit does not describe data very well (5x5 clusters) but most probable value reasonable S/N3x3=30.70.8 S/N5x5=372 Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 First results irradiation test

Irradiated chips up 1015 p/cm2 So far only time to test 1 chip at 1014 p/ cm2, butchip still alive!! 3MOSE (3MOS 4 diodes is parallel) still behaves well. Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 Conclusions APS2 contains 12 3&4MOS structures. 7 yield good S/N in source tests (S/N=18-25) 2 have fabrication problem 3 4MOS GAAs have too low S/N for MIPs APS3 has no epi-layer Yields large clusters Very high S/N (for 5x5 clusters S/N=372) First irradiation test result: 3MOSE (4 parallel diodes) still working well after 10 14p/cm2 More irradiation test results to come. Need test beam to measure efficiency. Outlook Jaap Velthuis (University of Liverpool)

ECFA04 September 1 2004 Radiation test Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004 Radiation test (II) Jaap Velthuis (University of Liverpool) ECFA04 September 1 2004

Recently Viewed Presentations

  • Study and life at Warwick

    Study and life at Warwick

    Britain 1660-1720 The Elizabethan Reformation The Russian Revolution, 1914-1921 Treasure Fleets of the Eastern Oceans Graduate Employment What graduates from UK universities are doing 64.8% in work 14% in further study 9.6% combining work and study 7.4% still seeking work...
  • Postpartum Haemorrhage - Zoho

    Postpartum Haemorrhage - Zoho

    Secondary PPH - significant blood loss between 24 hours and 6 weeks after birth. Why do we care? Major obstetric haemorrhage - more than 1000ml Very rapidly lead to maternal death 3rd highest cause of direct maternal death 58% of...
  • Value Added Agriculture Program Sourcing Iowa Corn for

    Value Added Agriculture Program Sourcing Iowa Corn for

    Emerging uses: Fish food and burning as fuel for the ethanol plant. Emerging concerns: Difficulty in getting environmental permits. Local market growth is mostly due to substitution. County. Story. Crop Dist. C. Lat. Long. Factor. lbs. Wet DDG. Dry DDG....
  • Chapter 3 Financial Instruments, Financial Markets, and ...

    Chapter 3 Financial Instruments, Financial Markets, and ...

    We will survey the financial system in three steps: Financial instruments or securities. Stocks, bonds, loans and insurance. What is their role in our economy? Financial Markets. New York Stock Exchange, Nasdaq. Where investors trade financial instruments. Financial institutions. What...
  • The Legislative Branch

    The Legislative Branch

    In cases where a president unexpectedly becomes incapacitated, the amendment allows for the vice-president to become acting president only after he and the "principal officers of the executive departments" (i.e., members of the cabinet) attest to the president's incapacitation in...
  • Concussion:Return to Riding - Horse Racing Uncensored

    Concussion:Return to Riding - Horse Racing Uncensored

    Money made on rest of one day's racing program is not worth what could happen next. One concussion makes you more likely to have a second concussion with LESS impact if you have not cleared from the first concussion. There...
  • Bando Multimisura

    Bando Multimisura

    bando multimisura € 390.000,00 budget contributi per i soggetti privati 1° finestra 1-15 dicembre 2009 30 domande ammesse € 408.500,92
  • Integrantes del grupo

    Integrantes del grupo

    Un ejemplo de esto es el proyecto NOKIA Morph. Permitió que los telefonos estén al alcance del tamaño de nuestra mano y que tengan baterías recargables, esto debido a que las pequeñas piezas que lo componen, son más prácticas y...