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APV Lectures APV FE Basic Building Blocks How Our Testing Works

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Presentation on theme: "APV Lectures APV FE Basic Building Blocks How Our Testing Works"— Presentation transcript:

1 APV Lectures APV FE Basic Building Blocks How Our Testing Works
APV BE & Other Assorted Bits of Info Feb 27, 2004 APV Lectures I-Anthony Affolder

2 APV Lectures I-Anthony Affolder
Pinholes “Ideal” pinholes are shorts between aluminum strip and p+ implant Resistance on hybrid (22kW,100W)(2.2kW,683W) R(22 kW) Feb 27, 2004 APV Lectures I-Anthony Affolder

3 APV Lectures I-Anthony Affolder
LED Pinhole Tests Voltage conversion assumes old resistor values in bias return circuit (22KW,100W) New Leakage Current (mA) Necessary With New Resistor Values Bias Ring Voltage m (Torsten Franke) With new resistor values (2.2KW, 681W): need ~120 mA for regular pinholes need >300 mA for “high current” pinholes Feb 27, 2004 APV Lectures I-Anthony Affolder

4 On-chip common mode subtraction
Inverters share common point Current flows between channels Regular channel noise: s2sraw2-scm2 Opens/saturated channel noise: s2sraw2+scm2 Depending on scm, open channel have higher/lower noise 50 W now Feb 27, 2004 APV Lectures I-Anthony Affolder

5 Fault Finding Using ARCS (1)
Noise Measurement Pulse Height Measurement (Using Calibration Pulse) Opens Noisy Shorts 1 sensor open Pinhole 2 sensor open Pinholes Bad Channel Flags Bad Channel Flags Feb 27, 2004 APV Lectures I-Anthony Affolder

6 Fault Finding Using ARCS (2)
Average Subtracted Peak Time (Calibration Pulse) Pinhole Test (Using LED System) Calibration Injection Response 1 sensor open 2 sensor open Average Subtracted Peak Time (ns) Pinholes LED Intensity Pinhole Channel Bad Channel Flags Feb 27, 2004 APV Lectures I-Anthony Affolder

7 APV layout Modified wafer test protocol Feb 27, 2004
APV Lectures I-Anthony Affolder

8 APV Lectures I-Anthony Affolder
Peaktime Feb 27, 2004 APV Lectures I-Anthony Affolder

9 APV Lectures I-Anthony Affolder
Noise vs. Capacitance Feb 27, 2004 APV Lectures I-Anthony Affolder

10 APV Lectures I-Anthony Affolder
Feb 27, 2004 APV Lectures I-Anthony Affolder

11 APV Lectures I-Anthony Affolder
Frame Feb 27, 2004 APV Lectures I-Anthony Affolder

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