Patent ID: 6716702
Filing Date: 2004-04-06
Classification: H01L

Abstract:
A method of fabricating a flash memory semiconductor apparatus, said method comprising the steps of:a. providing a semiconductor substrate; b. fabricating a silicon dioxide layer on at least one region of said semiconductor substrate; c. depositing a silicon material over said silicon dioxide layer; d. forming said silicon material and said silicon dioxide layer into at least one partial stack portion of a flash memory element, said silicon material formed into said at least one stack portion comprising a first polysilicon layer of said flash memory element; e. forming a pre-interpoly dielectric treatment layer over said first polysilicon layer by heating said first polysilicon layer and causing a chemical reaction by exposing said heated first polysilicon layer to a gas mixture; f. forming an interpoly dielectric member over said pre-interpoly dielectric treatment layer; and g. forming a second polysilicon layer over said interpoly dielectric member.