IMAGE SENSOR WITH DEEP WELL REGION AND METHOD OF FABRICATING THE IMAGE SENSOR

摘要

An imager, an image sensor (10) included in the imager and a method of fabricating the image sensor (10) are provided. The image sensor (10) having a substrate (20) with front and back sides to produce image data, includes a transparent conductive coating (170) arranged on the back side of the substrate (20), a first well region (30) of a first conductive type having first and second opposite sides, the first side being arranged adjacent with the front side of the image sensor (10); and a second well region (70) of a second conductive type, different from the first conductive type and having a deep well region (60) provided adjacent with the second side of the first well region (30), the transparent conductive coating (170) configured to develop or to receive a first potential and the first well region (30) configured to receive a second potential to substantially deplete a region between the transparent conductive coating (170) and the first well region (30).