Abstract: An image sensing device includes a plurality of color units. Each color unit has a photosensor element for converting light of a specific spectrum range into an electrical signal. Different arrangements of the photosensor elements are set in diagonal directions. In this way, such layout is capable of reducing color shift effect.

Abstract: A method of forming a solid-state image sensor is provided. The method includes the steps of forming a plurality of photosensor elements on a substrate; forming a plurality of color filters on the plurality of photosensors; forming a light blocking member between adjacent color filters; and forming a plurality of microlenses on the plurality of color filters. Each photosensor with each corresponding color filter and microlens is used for receiving an incident light of specific spectrum.

Abstract: A method for defect compensation in a color image sensor having pixels. The method comprises the steps of predetermining a first and second threshold, and defining a window, identifying peak and normal pixels, wherein the peak is one of the pixels that has a color difference larger than the first threshold from two adjacent pixels of the same color, and the normal pixels are those other than the peak, identifying the peak as a defect if each of the two pixels immediately adjacent to the peak has a color difference smaller than the second threshold from two adjacent pixels of the same color, and all the pixels in the window positioned according to the location of the peak are normal pixels, and correcting a color value of the defect.

Abstract: A readout circuit with on-sensor-chip two-dimensional interpolation. The readout circuit includes a plurality of readout units and at least one connection switch. The readout units read received brightness of the pixel units with the same color. Each of readout units includes at least one charge storage device in which stored charge is a received brightness sensed by a corresponding pixel unit. The switch couples the charge storage devices to share the charge between the coupled devices before the stored charge is read out. Thus, an xy-interpolation is carried out in analog domain.

Abstract: A regulated-cascode amplifier circuit comprising a positive sub-line, a negative sub-line, a first auxiliary amplifier, a second auxiliary amplifier and a clamping circuit. The positive sub-line has a positive output terminal and the negative sub-line has a negative output terminal. The positive and negative sub-line each has a cascode transistor structure. Each auxiliary amplifier includes a positive input terminal, a negative input terminal, a positive-bias output terminal and a negative-bias output terminal. The clamping circuit includes a first diode and a second diode. The front terminal of the first diode is electrically connected to the end terminal of the second diode. The front terminal of the second diode is electrically connected to the end terminal of the first diode. In addition, each auxiliary diode is connected to a clamping circuit such that the positive-bias output terminal and the negative-bias output terminal are connected to the two terminals of the diode clamping circuit respectively.