With cooperation of Fujifilm, Samsung has evolved the ISOCELL technology in ISOCELL Plus, usable both in the smartphone sector and in digital cameras. To explain the advantages it is necessary to start from the foundations, ie from the types of sensors supplied with smartphones: FSI, with front lighting, and BSI, with backlighting.
The ISOCELL Plus technology, just like the previous one, uses BSI sensors thanks to which it is possible to capture more light for the same scene. The problem of the onset of photographic noise when the light instead of going on the single photodiode affected more than one at a time was reduced in 2013 with ISOCELL, isolating the photodiodes with a physical barrier and focusing the photons with a micro lens.
With ISOCELL Plus from Samsung it is used a new material for the realization of the metallic grid made to separate the pixels that allows to limit the absorption or the reflection of the light, a factor that mortifies the advantages of the backlit BSI sensors. With the collaboration of Fujifilm, in this way it was possible to increase the color fidelity and 15% sensitivity to light, thus allowing the use of smaller pixels for the same yield. And with more compact pixels you can push on the resolution.