Sony’s new image sensor could offer better dynamic range and noise reduction
At the IEEE International Electron Devices meeting, Sony announcement its latest breakthrough in smartphone camera technology. Sony has unveiled the world’s first stacked Complementary Metal Oxide Semiconductor (CMOS) image sensor with a dual-layer transistor pixel.
Sony’s Dual CMOS Image Sensor differs from traditional CMOS image sensors in that it has independent photodiodes and pixel transistors on separate substrate layers. A CMOS image sensor has a layered construction that includes a pixel chip with back-illuminated pixels stacked above a logic chip with signal processing circuitry.
Unlike traditional CMOS image sensors, which have photodiodes and pixel transistors on the same substrate layer, Sony’s innovative technology has photodiodes and pixel transistors on separate substrate layers.
Sony’s new CMOS technology will prevent underexposure and overexposure in mixed lighting situations. Its latest image sensor design promises to enable high-quality, low-noise photos even in low-light conditions.
Sony said its new CMOS technology is aimed at smartphones, but didn’t provide a time frame in which we might expect to receive phones using this new sensor design.