Huawei is venturing into developing its own CMOS image sensor, a move triggered by sanctions that led to a rift between Huawei and its lens supplier, Sony. According to a Weibo tipster, the development process spans from wafer to chip, incorporating several innovative alterations, notably in thinning stop layers associated with epitaxial layers. These innovations enable compatibility with prevalent back-illuminated (BSI) technology.

Huawei’s Reason for Creating New CMOS Sensor

When sanctions hit Huawei, Sony, the original supplier of image sensors, halted their shipments, affecting both companies. Sony sought permission to resume supplies, but their relationship with Huawei had already strained. Consequently, Sony’s annual revenue experienced a multibillion-dollar dip due to the suspension of CMOS sales to Huawei.

This venture is not exclusive to Huawei; numerous domestic manufacturers in China are exploring the development of their own CMOS sensors. Back in January last year, at CES 2022, another Chinese brand, OMNIVISION, unveiled a 200-megapixel CMOS sensor, dubbed OVB0B. It boasts a resolution of 16384×12288 pixels, holds the record for the world’s smallest pixel size at 0.61μm, and features a large 1/1.28-inch sensor size. It can also output 12.5 million pixels following 16:1 binning, equivalent to 2.44μm.

The recently launched Huawei Mate60 series could potentially be among the last to use Sony sensors, as there is anticipation that the upcoming P70 series or Mate70 series may introduce Huawei’s new self-developed CMOS image sensor.

Huawei’s venture into self-developed CMOS technology, along with innovations like the Kirin 9000S, represents a significant step forward for the company, bringing promising advancements to its product line.

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Samsung helped fuel the raging bezel-less storm that has overtaken the industry presently, with the launch of the Galaxy S8 and S8 Plus as well as the Galaxy Note 8. The global smartphone market leader has again announced another leading technology that could find its way into bezel-less phones sometime soon. The technological products are two new camera image sensors that offer high-end hardware with a slim design, which could be used in future bezel-less smartphones. The two new camera sensors are christened – ISOCELL Fast 2L9 and ISOCELL Slim 2X7 and they are both for smartphones.

The ISOCELL Fast 2L9 is a 12MP sensor with 1.28µm dual pixels having two photodiodes in each. It brings down the pixel size from 1.4µm pixels while maintaining the dual pixel support. The two photodiodes in each pixel enable fast and highly accurate autofocus on still as well as moving objects. The sensor is able to focus on tiny objects even in low light conditions with the 12 million focus detecting pixels it packs. Dual Pixel technology essentially allows single lens cameras to click images with depth-of-field effect for taking out-of-focus photographs. The reduced size of the ISOCELL Fast 2L9 makes it possible to fit in slimmer camera modules, enabling bump-less cameras on Samsung smartphones.

On the other hand, the ISOCELL Slim 2X7 has a size of 0.9 µm and is Samsung’s first 24MP camera sensor having a size less than 1 micron. But the small size doesn’t affect the quality, as it is capable of taking brighter pictures even in the dark. This is because the sensor has Tetracell technology, which allows it to take brighter images in dark settings, along with more detailed photos in brighter settings. The technology merges four neighbouring pixels to work as one producing brighter pictures even in the low light conditions.  The small size of the sensor enables it to be fitted in thinner camera modules, giving a slim and elegant design to smartphones.

Related: Samsung Galaxy Note 9 Reportedly Arriving with Under-Display Fingerprint Scanner

WIth this two new camera sensors, Samsung may be preparing the ground for its 2018 Galaxy S9 flagship that could utilize the sensors. The Galaxy S9 is expected to continue with the same full-screen, bezel-less design the Galaxy S8 used and so, it all makes sense.

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