Patent ID: 6294466
Filing Date: 2001-09-25
Classification: C23C,H01J

Abstract:
A method for depositing a metal film on a substrate disposed in a process chamber, said method comprising:flowing, into said process chamber, a deposition gas including a metal source gas including a metal from the group consisting of titanium or tantalum;flowing, into said process chamber, a plasma forming gas, with said plasma forming gas being introduced into said process chamber separately from said deposition gas;flowing an inert gas into said process chamber via an aperture centrally disposed in a dome shaped cover of said process chamber, said inert gas following a contour of said dome and being positioned between said dome and said flow of said deposition gas;forming an inductively coupled plasma, with said inductively coupled plasma being present in said process chamber; andmaintaining process conditions suitable for depositing a film containing metal on said substrate.