  X-ray Hybrid CMOS Detectors (HCDs) have advantages over X-ray CCDs due to
their higher readout rate abilities, flexible readout, inherent radiation
hardness, and low power, which make them more suitable for the next generation
large area X-ray telescope missions. The Penn State high energy astronomy
laboratory has been working on the development and characterization of HCDs in
collaboration with Teledyne Imaging Sensors (TIS). We characterized an H2RG
detector with a Cryo-SIDECAR readout and controller, and we find an improved
energy resolution of ~2.7 % at 5.9 keV and read noise of ~6.5 e-. This detector
was successfully flown on NASA's first water recovery sounding rocket flight on
April 4th, 2018. We have also been developing several new HCDs with potential
applications for future X-ray astronomy missions. We are characterizing the
performance of small-pixel HCDs (12.5 {\mu}m pitch), which are important for
the development of a next-generation high-resolution imager with HCDs. We also
characterized a 64 x 64 pixel prototype Speedster-EXD detector that uses
comparators in each pixel to read out only those pixels having detectable
signal, thereby providing an order of magnitude improvement in the effective
readout rate. HCDs can also be utilized as a large FOV instrument to study the
prompt and afterglow emissions of GRBs and detect black hole transients. In
this context, we are characterizing a Lobster-HCD system for future CubeSat
experiments. This paper briefly presents these new developments and
experimental results.
