Patent ID: 6642541
Filing Date: 2003-11-04
Classification: H01L

Abstract:
An image sensor, comprising:a conversion section for converting an incident electromagnetic wave into electric charge; pixel electrodes for storing the electric charge generated by said conversion section; switching elements for controlling reading out of the electric charge from the pixel electrodes, said switching elements comprising dual-gate transistors; an interlayer insulating film comprising an organic film formed under each pixel electrode, wherein an upper surface of said interlayer insulating film in an area above at least part of one of the switching elements is at an elevation lower than an elevation of the upper surface of the interlayer insulating film at other areas, said elevations being relative to a surface of a substrate of the image sensor; an electrically conductive film which is electrically connected to a pixel electrode, and which is extended from the pixel electrode to a layer above each switching element, said electrically conductive film functioning as a gate electrode of a dual-gate transistor; and a dielectric layer formed between the switching element and said electrically conductive film.