Samsung electronics co., ltd. (20240128299). BACK SIDE ILLUMINATION IMAGE SENSORS AND ELECTRONIC DEVICE INCLUDING THE SAME simplified abstract

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BACK SIDE ILLUMINATION IMAGE SENSORS AND ELECTRONIC DEVICE INCLUDING THE SAME

Organization Name

samsung electronics co., ltd.

Inventor(s)

Yun Ki Lee of Hwaseong-si (KR)

Jong Hoon Park of Hwaseong-si (KR)

Jun Sung Park of Hwaseong-si (KR)

BACK SIDE ILLUMINATION IMAGE SENSORS AND ELECTRONIC DEVICE INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240128299 titled 'BACK SIDE ILLUMINATION IMAGE SENSORS AND ELECTRONIC DEVICE INCLUDING THE SAME

Simplified Explanation

The abstract describes a back side illumination (BSI) image sensor with various components such as a photodiode, device isolation film, dark current suppression layer, light shield grid, light shielding filter layer, planarization layer, lens, and anti-reflective film.

  • Photodiode: The pixel includes a photodiode to generate electrical signals in response to light.
  • Light Shield Grid: The pixel has a light shield grid with an opening area of 1 to 15% of the pixel's area.
  • Anti-Reflective Film: Positioned between the photodiode and the lens to reduce reflections.

Potential Applications

This technology could be used in digital cameras, smartphones, security cameras, and other imaging devices.

Problems Solved

This innovation helps in reducing dark current, improving image quality, and enhancing light sensitivity in image sensors.

Benefits

The benefits of this technology include better image quality, increased light sensitivity, and reduced noise in low-light conditions.

Potential Commercial Applications

The potential commercial applications of this technology could be in the consumer electronics industry, surveillance systems, medical imaging devices, and automotive cameras.

Possible Prior Art

Prior art in image sensor technology includes front side illumination sensors, CMOS sensors, and other types of image sensors used in various electronic devices.

Unanswered Questions

How does this technology compare to traditional front side illumination image sensors?

This article does not provide a direct comparison between back side illumination sensors and front side illumination sensors in terms of performance, cost, or other factors.

What are the specific challenges faced in implementing the components described in the abstract?

The article does not delve into the specific challenges that may arise in implementing the various components of the back side illumination image sensor, such as manufacturing complexities or design considerations.


Original Abstract Submitted

in some example embodiments, a back side illumination (bsi) image sensor may include a pixel configured to generate electrical signals in response to light incident on a back side of a substrate. in some example embodiments, the pixel includes, a photodiode, a device isolation film adjacent to the photodiode, a dark current suppression layer above the photodiode, a light shield grid above the photodiode and including an opening area of 1 to 15% of an area of the pixel, a light shielding filter layer above the light shield grid, a planarization layer above the light shielding filter layer, a lens above the planarization layer, and/or an anti-reflective film between the photodiode and the lens.