Patent ID: 9093573
Filing Date: 2015-07-28
Classification: H01L,H04N

Abstract:
1. An image sensor comprising: a substrate having a first conductivity type; a first well in the substrate and having an opposite conductivity type and doped with opposite conductivity type dopant at a first dosage at a first implantation energy; a second well in the first well and having the opposite conductivity type and doped with opposite conductivity type dopant at a second dosage higher than the first dosage; a first region in the second well and having the opposite conductivity type and doped with opposite conductivity type dopant at a second implantation energy higher than the first implantation energy; a second region in the first region and having the first conductivity type and doped with first conductivity type dopant at a third dosage higher than the second dosage at the first implantation energy; a third region in the second well adjacent the first region and having the opposite conductivity type and doped with opposite conductivity type dopant at the third dosage at the first implantation energy a temperature sensor for measuring temperature measurements of the image sensor and disposed between the second region and the third region and connected to each of the second region and the third region; and a third well having the first conductivity type in the first well and adjacent the second well.