Details

Autor(en) / Beteiligte

• Lee, Jae-Kyu
• Kim, Seung Sik
• Baek, In-Gyu
• Shim, Heesung
• Kim, Taehoon
• Kim, Taehyoung
• Kyoung, Jungchan
• Im, Dongmo
• Choi, Jinyong
• Cho, KeunYeong
• Kim, Daehoon
• Lim, Haemin
• Seo, Min-Woong
• Kim, JuYoung
• Kwon, Doowon
• Song, Jiyoun
• Kim, Jiyoon
• Jang, Minho
• Moon, Joosung
• Kim, HyunChul
• Chang, Chong Kwang
• Kim, JinGyun
• Koh, Kyoungmin
• Lim, HanJin
• Ahn, JungChak
• Hong, Hyeongsun
• Lee, Kyupil
• Kang, Ho-Kyu

Titel

5.5 A 2.1e− Temporal Noise and −105dB Parasitic Light Sensitivity Backside-Illuminated 2.3µm-Pixel Voltage-Domain Global Shutter CMOS Image Sensor Using High-Capacity DRAM Capacitor Technology

Ist Teil von

• 2020 IEEE International Solid- State Circuits Conference - (ISSCC), 2020, p.102-104

Ort / Verlag

IEEE

Erscheinungsjahr

2020

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• As the automotive and AI industries are expanding rapidly, global-shutter (GS) image sensors are playing a more significant role in the perception system. More specifically, GS image sensors are required in various fields involving IR, including the face-ID in mobile devices, the driver monitoring system in automotive applications, and factory automation. GS image sensors are necessary for these applications because they can capture freeze-frame images without motion distortion due to their advantage in the pixel operation method. The simultaneous pixel exposure and in-pixel storing capability allow GS image sensors to achieve high-quality imaging, while the sequential pixel exposure and readout of rolling-shutter (RS) image sensors results in image distortion known as the jello effect. For mobile and automotive applications, a small form factor while maintaining a low parasitic light sensitivity (PLS) and low noise is crucial. In conventional backside illuminated (BSI) charge-domain GS image sensors, a light-shielding structure over the storage area must be formed in order to suppress the influence of parasitic light during the readout operation. Therefore, the introduction of such a light-shielding structure reduces the effective photodiode area, which results in a loss of full-well capacity (FWC), light sensitivity of the sensor, and pixel scalability.