03.07.2024| MacRumors
Apple is testing Samsung's advanced CMOS image sensors (CIS), which could debut in Apple's iPhone 16 later this year, The Elec reports.
Apple is currently performing final quality control on CMOS image sensors supplied by Samsung System LSI, a logical division of Samsung. These sensors will be used in the main camera of the upcoming iPhone 16. Historically, Apple has exclusively sourced CIS for its iPhones from Sony, but recent developments suggest that it is preparing to move away from the Japanese supplier due to reliability concerns and the need to integrate new technologies into the camera system.
The decision to bring in Samsung is said to stem from the issues Apple had with Sony last year. Apple asked Samsung to develop new image sensors in 2023 after Sony failed to deliver them on time, contributing to the iPhone 15 release date delays. If Samsung passes current quality control tests, it would be the first time the company has supplied CIS for an iPhone.
Samsung's new image sensor has a more advanced three-layer design. Each of these layers contains different elements: a photodiode, transistors, and analog-to-digital conversion logic. In contrast, current and previous iPhone image sensors have a two-layer design that combines the photodiode and transistors in a single layer.
In CIS, a photodiode converts light into electrical signals, while four transistors are responsible for transmitting, amplifying, reading, and erasing these signals. Separating these components into three layers results in higher pixel density, lower noise, and smaller pixel sizes.
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The new technology uses layer-to-layer hybrid bonding, which connects these layers directly using a copper pad, eliminating the need for signal spikes. In this way, CIS can be smaller in size and increase data transfer rates.
The iPhone 16 series is widely expected to launch this fall with new camera features like a dedicated “Capture” button, a 48MP ultra-wide camera, and more.
