High voltage, low pressure plasma enhanced atomic layer deposition

• Main Author: Dickey, Eric R
• Format: Patent
• Language: English
• Published: 19.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Atomic layer deposition (ALD) methods and barrier films are disclosed. A method of performing ALD includes placing a substrate proximal an electrode coupled to a power supply, exposing the substrate to an oxygen-containing gas or a nitrogen-containing gas at or below 0.8 Torr, and applying, with the power supply, a voltage to the electrode of at least 700 Volts to induce a plasma state in the oxygen-containing gas or the nitrogen-containing gas proximal the substrate. High quality barrier films can be made with the methods.