Usually, when we talk about nanometers itís about the latest chipset. However, a Samsung team at the IEDM 2019 conference presented a technology promising 144MP image sensors based around 14nm FinFET process.
The main challenge is that image sensors need to work at a relatively high voltage (2V and up) and all chipset designers aim for the lowest possible voltage (as that reduces power consumption and heat).
According to Samsungís researchers, the 14nm FinFET technology will allow for a 42% reduction in power consumption in a 144MP sensor while capturing images at 10fps. For a 12MP readout at 30-120fps (i.e. recording video), the power savings can be up to 37%.
Note that this announcement has nothing to do with pixel size Ė instead, the 14nm refers to the transistors that amplify the signal coming from the pixels along with other analog and digital processing hardware thatís on the image sensor.