Light sensing system with high pixel fill factor

A light imager contained on an integrated circuit chip, the light imager comprising:

• one or more light sensors, each of the one or more light sensors disposed on a corresponding sensor area on the integrated chip, the each of the corresponding sensor areas comprising a light sensing area, the one or more light sensors comprising:
• a light sensing element;
• a control circuitry, having a plurality of transistors, coupled to the light sensing element such that a vertical stack is formed with the one or more light sensors;
• and
• the light sensing area making up at least 50% of the sensor area.

A light sensor disposed on and within an integrated circuit chip, the light sensor having a fill factor, the light sensor comprising:

• a light sensing element;
• a control circuitry, having a plurality of transistors, communicatively coupled to the light sensing element, controlling the operation of the light sensing element;
• and
• the control circuitry disposed substantially within the integrated circuit chip to form a vertical stack with the light sensing element.

A light sensor contained in and on an integrated circuit chip, the light sensor contained in a sensor area on a surface of the integrated circuit chip, the sensor area comprising a light sensing area, the light sensor comprising:

• a light sensing element;
• control circuitry, having a plurality of transistors, communicatively coupled to the light sensing element, controlling the operation of the light sensing element;
• the control circuitry disposed, at least in part, within the integrated circuit chip to form a vertical stack with the light sensing element;
• and
• the light sensing area is 50% or more of the sensor area.

A light imager contained on an integrated circuit die, the light imager comprising:

• one or more light sensors, each of the one or more light sensors having a fill factor, the one or more light sensors comprising:
• a light sensing element;
• a control circuitry, having a plurality of transistors, communicatively coupled to the light sensing element, controlling the operation of the light sensing element;
• and
• at least some of the control circuitry disposed within the integrated circuit die to form a vertical stack with the light sensing element.