Sony is the leading camera sensor vendor for smartphones. Companies prefer the Japanese tech giant over other players because of its innovation and its ability to meet demands. To maintain its position, Sony is known for making advancements every now and then. According to a press release (via Android Authority) by the firm, it recently announced its latest breakthrough in stacked image sensor technology at the IEEE International Electron Devices Meeting, which began on December 11, 2021.

Sony says that it has developed the world’s first stacked CMOS image sensor technology with 2-layer transistor pixels. In simpler words, the company has improved the existing stacked sensor technology by making some changes to achieve better performance.

The firm explains that photodiodes and pixel transistors of conventional CMOS image sensors occupy the same pixel substrate layer. Sony has made changes to this arrangement by using separate pixel substrate layers for photodiodes and pixel transistors respectively.

The Japanese company claims that its new sensor technology doubles saturation signal, which in turn, widens the dynamic range. Additionally, since the amp transistor size can be increased with this tech, noise during dark scenarios is also reduced.

Last but not least, Sony states that its stacked CMOS image sensor technology with 2-layer transistor pixels improves the properties of pixels at their current size as well as smaller. This suggests that the firm may finally release its own 100MP+ sensors like Samsung to make use of this tech.

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