A UNIT PIXEL OF DEPTH SENSOR, 3D IMAGE SENSOR INCLUDING THE UNIT PIXEL AND METHOD OF THE SAME

摘要

PURPOSE: A unit pixel of a depth sensor, a three dimensional image sensor including the same, and a manufacturing method thereof are provided to improve the quality of distance information by accelerating charges with a drift speed. CONSTITUTION: A bonding gate is arranged near a semiconductor substrate. Two photo gates(130,140) include a plurality of finger gates. The plurality of finger gates are extended from the bonding gate in parallel. Two transmission gates(151,161) are connected to the end of the photo gate. Two floating diffusion regions receive charges collected in a charge collection region.