Pixel sensor cell with hold node for leakage cancellation and methods of manufacture and design structure

摘要

A reference pixel sensor cell (e.g., global shutter) with hold node for leakage cancellation, methods of manufacture and design structure is provided. A pixel array includes one or more reference pixel sensor cells dispersed locally throughout active light sensing regions. The one or more reference pixel sensor cells provides a reference signal used to correct for photon generated leakage signals which vary by locality within the active light sensing regions.

主权项

1. A pixel array comprising one or more reference pixel sensor cells dispersed locally throughout active light sensing regions, the one or more reference pixel sensor cells comprising a global shutter connected to a reference signal to hold the one or more reference pixel sensor cells at a predetermined voltage level during sensor operation such that a reference voltage on a floating node remains at a set value and is used to correct for photon generated leakage signals which vary by locality within the active light sensing regions.