Patent ID: 6128211
Filing Date: 2000-10-03
Classification: G11C

Abstract:
A non-volatile memory device with a baseboard structure which contains a metallic floating gate/ferroelectric thin film/same material but different type welded surface; it consists of:a baseboard in the same material but different type,;the baseboard being a silicon baseboard with a p-n welded surface;a thin ferroelectric film which is fixed on the welded surface base, and wraps the floating gate;a floating gate made of Pt is embedded in the thin ferroelectric film, and used to store electric charges;a metallic thin film is fixed on the thin ferroelectric film, and provides the gate for the memory device;an aluminum-based source metallic thin film and a drain metallic thin film, which are fixed on the baseboard and placed on the two sides of the ferroelectric thin film respectively to form contact with it; andan aluminum substrate metallic thin film, which is fixed on the other side of the baseboard;wherein the gate metallic thin film is made of gold.