A 54mm x 54mm — 1.8Megapixel CMOS image sensor for medical imaging

A large area, 54 mm x 54 mm 1.8Megapixel CMOS image sensor was designed for scientific applications such as X-ray diffraction studies and direct medical X-ray imaging. Both applications have a requirement for large sensing area combined with a high dynamic range. The sensor was manufactured using stitching techniques in order to achieve a large, scalable design. The boundary between stitched sections is seamless, with no lost pixel space. Ten parallel outputs are used to enable a frame rate of up to 20 frames per second with full frame readout. Further increases in speed are possible by defining a region of interest.