ULTRA-THIN CAPACITOR AND DRAM

摘要

PROBLEM TO BE SOLVED: To provide an ultra-thin capacitor for a DRAM. SOLUTION: A capacitor and a DRAM having this capacitor include a first layer 2 of a conductive doped perovskite material, a second layer 3 of an anti- conductive doped perovskite material, and a depletion layer 1 formed in the interface between the first and second layers made of the conductive perovskite material and constituting the insulating layer of the capacitor.