Delft University publishes a very nice PhD Thesis "Fundamental Characteristics of a Pinned Photodiode CMOS Pixel" by Yang Xu. Other than a lot of basic stuff on PPD principles and characterization, the thesis discusses some of the more advanced things, like optimizations for image lag and charge transfer speed:
Pinned Photodiode Fundamentals
online engineering degree/engineering degree online/online engineering courses/engineering technology online/engineering courses online/engineering technician degree online/online engineering technology/electronic engineering online