Status of Hamamatsu Silicon Sensors

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Status of Hamamatsu Silicon Sensors
SCT_at_CERN, Oct 2001
Prepared by K. Hara (U. Tsukuba)
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Summary of Institution(HPK) tests
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Delivery
200300/month in recent deliveries Production
sensors with modified mask from March
2063
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Leakage current (_at_150, 350V)
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defects
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wafer thickness
recent delivery
full depletion voltage
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Bias resistance, sampling 2/lot
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Implant tests sampling (2/lot)
June 2001
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Full strip tests just started
Measure only detectors with many defects
All defects identified
These not identified
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visually not seen as well
No new defects created!
some (?) not identified
Many HPK defects clustered 300-400 problem in
HPK prober?
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24hr I stability
2063 delivery
1093 delivery
Recent delivery