Samsung today introduced (s)a new ISOCELL Plus technology that will enable CMOS image sensors to detect more light and thus significantly increase light sensitivity and color fidelity. First, the technology developed with Fujifilm is to be incorporated into smartphone sensors to improve image quality.
Background: In contrast to a barrier-free BSI sensor, the classic ISOCELL technology forms a physical barrier between the neighbouring pixels. This reduces color crosstalk and extends the full-well capacity, i.e. the saturation range of the sensor. In the existing pixel structure, metal grids are "pulled up" above the photodiodes to reduce interference between the pixels.
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Since metals tend to reflect and/or absorb the incident light, optical errors can occur at this point. With the new ISOCELL Plus, Samsung replaced the metal barrier with a new material developed by Fujifilm to minimize optical loss and light reflection.
ISOCELL Plus is designed to increase light sensitivity by 15 percent. Samsung wants to use this technology in mobile sensors with 0.8µm sensors to enable high-resolution cameras with over 20 megapixels in the smartphone.
ISOCELL Plus was presented today at the Mobile World Congress Shanghai from June 27 to 29. Of course, we wonder whether such increases in efficiency due to non-reflective material are also possible with large format sensors, or whether reflections at the edges of the sensors are a rather negligible effect.
Bild zur Newsmeldung:
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