IMAGE SENSOR AND FABRICATING METHOD THEREOF

摘要

PURPOSE: An image sensor and a manufacturing method thereof are provided to prevent the generation of cross-talk by forming a metal wiring which is directly contacted with the different surface of a substrate. CONSTITUTION: A wiring structure is formed on one side(FS) of a substrate(110). The wiring structure comprises a plurality of wirings(124a-124c) and insulating layers(126). A first conductive first well is formed inside the substrate. A first metal wiring(192) is formed in order to be directly contacted with the backside(BS) of the substrate. The first metal wiring applies a first well bias to the first well.