Abstract:
Provided are a complementary metal-oxide semiconductor (CMOS) image sensor based on a thin-film-on-application specific integrated circuit (TFA), and a method of operating the same. The CMOS image sensor may include at least one floating diffusion region formed in a semiconductor substrate, and a thin film type light sensor disposed to correspond to a plurality of pixels. The CMOS image sensor may also include at least one via electrically connected between the light sensor and the at least one floating diffusion region. The CMOS image sensor may also include a first micro lens disposed to correspond to at least two pixels of the plurality of pixels.
Abstract:
An image sensor and an image sensing method are provided. The image sensor includes a semiconductor substrate; a photoelectric converter comprising a bias unit, which comprises a first electrode and a second electrode, and an organic photoelectric conversion layer, which selectively absorbs light and converts the light into electrons; a via contacting the second electrode to connect the photoelectric converter with the semiconductor substrate; a storage node configured to store electrons; a read-out unit to converts charge transferred from the storage node into an image signal; a pixel array comprising a plurality of pixels, each of which comprises an intermediate insulating layer; and an output circuit configured to read out the image signal from the pixel array. The quantity of light received by the organic photoelectric conversion layer is adjusted by a bias change of the bias unit.
Abstract:
Provided is an image sensor including a source follower transistor. The source follower transistor may include a channel structure that is provided between a source and a drain, and includes a first semiconductor layer, a second semiconductor layer, and a blocking structure. The first semiconductor layer may be spaced apart from a gate insulating layer of the source follower transistor by a first depth or more. Carriers may move from the source of the source follower transistor to the drain thereof through the first semiconductor layer.
Abstract:
A method of operating an image sensor is provided. The method includes detecting a signal related to brightness of an object and generating a control signal which corresponds to a result of the detected signal and adjusting an oversampling number within a range of a single frame time based on the control signal.