Figure 2
Schematic perspective views of tiled PADs, (a) without and (b) with displacement between the sensor pixels and readout module pixels. Red rectangles and squares are sensor pixels, black squares are readout module pixels, black circles are the bonding locations between the sensor and readout module pixels, and the cross-hatched blue squares in (a) represent the gaps between tiled PAD readout modules. The XSPA-500k uses the scheme illustrated in (b) to seamlessly span the gap regions between readout modules with (square) pixel sizes that are independent of position on the sensor. |