S. Dent@stevetdentDecember 17th, 2021In this article: 2-layer transistor pixel, CMOS, news, gear, stacked CMOS, Sony, decrease noise, cameras, sensor, dynamic varietyYUKI IWAMURA by way of Getty Visuals
Sony has unveiled a new style of stacked CMOS sensor that works by using “two-layer transistor pixels” to double the light collecting functionality. Usual impression sensors have the mild-delicate photodiodes and pixel transistors that control and amplify the signal on the similar layer. However, the new style and design places the photodiodes on leading and the pixel transistors down below, “approximately doubling saturation signal amounts,” Sony said.
Sony pioneered stacked sensors that set quickly memory and other electronics directly underneath the sensor, allowing for a lot quicker readout speeds and hence fast burst capturing and lowered rolling shutter (jello result) on cameras and smartphones. This most recent sensor employs a very similar concept, but packs the pixel transistors onto a separate substrate beneath the photodiode layer.
Sony
That signifies just about every layer could be optimized, making it possible for Sony to double the sensor’s mild saturation (well depth), or the amount of money of charge just about every pixel can maintain. That in switch makes it possible for for around double the gentle-capturing capability.
Sony notes that mainly because the transistor pixels sit on a separate layer, it was capable to improve the amplifier transistors in dimensions. That lets for a larger signal boost, reducing sounds when taking pictures nighttime or other pictures in dark locations. The increased dynamic selection will allow for for “high-high quality, reduced-sound photos even in reduced-light,” in accordance to Sony.
Sony exclusively mentioned that the tech will allow for for greater-good quality smartphone images. With double the light gathering capability, it will enable for significantly enhanced mild sensitivity even in rather tiny, large-megapixel sensors. Sony has still to say when this tech will make it to smartphone or cameras, but it plans to additional enhance the design for each huge and tiny sensors.
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