Hat Tip: DP Review
Samsung uploaded a video explaining its ISOCELL image sensor to YouTube a couple days ago.
The design is meant to isolate the individual pixels (photosites/photodiodes) from each other in order to prevent image noise.
Isolating the pixel sites from each other becomes more important as the sensor's size is decreased or the number of pixel sites on the image is increased. Both require using smaller pixel sites packed closer together. Image noise increases when pixel sites are moved closer to each other.
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