18515829. WAVE GUIDE FILTER FOR SEMICONDUCTOR IMAGING DEVICES simplified abstract (Taiwan Semiconductor Manufacturing Company, Ltd.)

WAVE GUIDE FILTER FOR SEMICONDUCTOR IMAGING DEVICES

Organization Name

Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor(s)

Cheng Yu Huang of Hsinchu (TW)

Chun-Hao Chuang of Hsinchu City (TW)

Chien-Hsien Tseng of Hsinchu (TW)

Kazuaki Hashimoto of Zhubei City (TW)

Keng-Yu Chou of Kaohsiung City (TW)

Wei-Chieh Chiang of Yuanlin Township (TW)

Wen-Chien Yu of Hsinchu (TW)

Ting-Cheng Chang of Hsinchu (TW)

Wen-Hau Wu of New Taipei City (TW)

Chih-Kung Chang of Zhudong Township (TW)

WAVE GUIDE FILTER FOR SEMICONDUCTOR IMAGING DEVICES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18515829 titled 'WAVE GUIDE FILTER FOR SEMICONDUCTOR IMAGING DEVICES

Simplified Explanation

The abstract describes an image sensor with a wave guide filter that includes a light filter grid structure.

• Image sensor with photodetector in semiconductor substrate
• Wave guide filter with planar upper surface over photodetector
• Light filter in grid structure with translucent first material
• Light filter grid structure with translucent second material of lower refractive index

Potential Applications

• Improved image quality in digital cameras
• Enhanced performance in medical imaging devices
• Higher sensitivity in surveillance cameras

Problems Solved

• Minimizing noise in image sensor
• Increasing light sensitivity
• Improving color accuracy in images

Benefits

• Enhanced image resolution
• Reduced distortion in captured images
• Improved low-light performance

Original Abstract Submitted

In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.