BSI camera sensors improved the sensitivity of the sensor hugely, paving the way for higher-resolution (most notably, 13-megapixel) mobile cameras with smaller, 1.1µm pixels. Now, ISOCELL technology builds up on BSI, as it claims to bring another leap in light sensitivity, while reducing noise, and capturing a higher dynamic range.
Chipworks put the 16-megapixel main and the 2-megapixel secondary camera sensor of the Galaxy S5 under the microscope to show what secrets ISOCELL hides, and the images it captured verify that we indeed have Samsung-made camera sensor in the S5.
‘S5K2P2XX’ and features 1.12µm sized pixels. The front-facing 2MP camera has the ‘S5K8B1YX03’ model name, and it also comes with 1.12µm pixel pitch. Chipworks has already showed us a vertical X-ray image of an ISOCELL sensor showing how Samsung is the first to combine advanced features like front deep trench isolation (F-DTI) and Vertical Transfer Gate (VTG) in a mobile camera sensor.
What’s particularly interesting, though, is that Samsung is also one of the first companies to implement phase detection auto-focus pixels that allow the AF mechanism to lock focus in just 0.3 seconds. Indeed, pairs of phase detection pixels are positioned almost entirely throughout the sensor pixel array.
Samsung Galaxy S5 camera under the microscope