Table 3.
Modification of conditions used in the theoretical analysis for designing practical sensors.
Reasons of Introduction | Terms in the Theoretical Analysis | Practical Countermeasures | ||
---|---|---|---|---|
Elements | Employed Conditions | Measures to Mitigate | Trade-Offs/Side Effects | |
To enhance the temporal resolution | Horizontal motion | Reduction | (Microlens/light guide) + (DTI/p-well) | Less/non-uniform sensitivity, Dark current |
Thickness of the layer (W) | = Penetration depth (δ) | W ’ = W/δ = 3 | Crosstalk vs. Temporal resolution | |
Electric field | 25 kV/cm | - | Dark current | |
Incident light direction | Perpendicular to the backside | Adjustment for the distributed light direction | - | |
Crystal orientation | <111> | <100> | - | |
Impurity concentration | 0 (intrinsic) | 1014 cm−3 | - | |
For formulation | Arrival-time distribution | Gaussian distribution | - | - |
Definition of the resolution | Ditto:|µ 2 − µ 1| = 2 σ | - | - |