Min-Sun Keel, Young-Gu Jin, Youngchan Kim, Daeyun Kim, Yeomyung Kim, M. Bae, Bumsik Chung, S. Son, Hogyun Kim, Taemin An, Sungsoo Choi, T. Jung, Yonghun Kwon, Sung-Uk Seo, Sae-Young Kim, Kwanghyuk Bae, Seung-Chul Shin, Myoungoh Ki, Changrok Moon, H. Ryu
{"title":"一种具有4分频7 μm全局快门像素和固定模式相位噪声自补偿方案的640×480间接飞行时间CMOS图像传感器","authors":"Min-Sun Keel, Young-Gu Jin, Youngchan Kim, Daeyun Kim, Yeomyung Kim, M. Bae, Bumsik Chung, S. Son, Hogyun Kim, Taemin An, Sungsoo Choi, T. Jung, Yonghun Kwon, Sung-Uk Seo, Sae-Young Kim, Kwanghyuk Bae, Seung-Chul Shin, Myoungoh Ki, Changrok Moon, H. Ryu","doi":"10.23919/VLSIC.2019.8778090","DOIUrl":null,"url":null,"abstract":"${A}640 \\times 480$ indirect Time-of-Flight (ToF) CMOS image sensor has been designed with 4-tap $7-\\mu \\mathrm{m}$ global-shutter pixel in 65-nm back-side illumination (BSI) process. With novel 4tap pixel structure, we achieved motion artifact-free depth map. Column fixed-pattern phase noise (FPPN) is reduced by introducing alternative control of the clock delay propagation path in the photo-gate driver. As a result, motion artifact and column FPPN are not noticeable in the depth map. The proposed ToF sensor shows depth noise less than 0.62% with 940-nm illuminator over the working distance up to 400 cm, and consumes 197 mW for VGA, which is 0.64 pW/pixel.","PeriodicalId":6707,"journal":{"name":"2019 Symposium on VLSI Circuits","volume":"11 1","pages":"C258-C259"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":"{\"title\":\"A 640×480 Indirect Time-of-Flight CMOS Image Sensor with 4-tap 7-μm Global-Shutter Pixel and Fixed-Pattern Phase Noise Self-Compensation Scheme\",\"authors\":\"Min-Sun Keel, Young-Gu Jin, Youngchan Kim, Daeyun Kim, Yeomyung Kim, M. Bae, Bumsik Chung, S. Son, Hogyun Kim, Taemin An, Sungsoo Choi, T. Jung, Yonghun Kwon, Sung-Uk Seo, Sae-Young Kim, Kwanghyuk Bae, Seung-Chul Shin, Myoungoh Ki, Changrok Moon, H. Ryu\",\"doi\":\"10.23919/VLSIC.2019.8778090\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"${A}640 \\\\times 480$ indirect Time-of-Flight (ToF) CMOS image sensor has been designed with 4-tap $7-\\\\mu \\\\mathrm{m}$ global-shutter pixel in 65-nm back-side illumination (BSI) process. With novel 4tap pixel structure, we achieved motion artifact-free depth map. Column fixed-pattern phase noise (FPPN) is reduced by introducing alternative control of the clock delay propagation path in the photo-gate driver. As a result, motion artifact and column FPPN are not noticeable in the depth map. The proposed ToF sensor shows depth noise less than 0.62% with 940-nm illuminator over the working distance up to 400 cm, and consumes 197 mW for VGA, which is 0.64 pW/pixel.\",\"PeriodicalId\":6707,\"journal\":{\"name\":\"2019 Symposium on VLSI Circuits\",\"volume\":\"11 1\",\"pages\":\"C258-C259\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-06-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 Symposium on VLSI Circuits\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/VLSIC.2019.8778090\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 Symposium on VLSI Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/VLSIC.2019.8778090","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 640×480 Indirect Time-of-Flight CMOS Image Sensor with 4-tap 7-μm Global-Shutter Pixel and Fixed-Pattern Phase Noise Self-Compensation Scheme
${A}640 \times 480$ indirect Time-of-Flight (ToF) CMOS image sensor has been designed with 4-tap $7-\mu \mathrm{m}$ global-shutter pixel in 65-nm back-side illumination (BSI) process. With novel 4tap pixel structure, we achieved motion artifact-free depth map. Column fixed-pattern phase noise (FPPN) is reduced by introducing alternative control of the clock delay propagation path in the photo-gate driver. As a result, motion artifact and column FPPN are not noticeable in the depth map. The proposed ToF sensor shows depth noise less than 0.62% with 940-nm illuminator over the working distance up to 400 cm, and consumes 197 mW for VGA, which is 0.64 pW/pixel.
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