Patent ID: 6815370
Filing Date: 2004-11-09
Classification: C23C,H01J

Abstract:
A method of forming a nitride layer using a plasma enhanced CVD comprising:loading a wafer onto a susceptor; supplying a first reactive gas containing nitrogen N2 to a process chamber; leaving the wafer intact for a first delay time; forming a basic layer on the wafer by converting the first reactive gas into plasma which is created by applying electric power to the process chamber; leaving the wafer intact for a second delay time; forming a nitride layer on the wafer having the basic layer thereon by supplying a second reactive gas to the process chamber and converting the second reactive gas into plasma; leaving the wafer intact for a third delay time; stopping the supply of the first and second reactive gases to the process chamber; leaving the wafer intact for a fourth delay time; stopping applying the electric power; and unloading the wafer from the susceptor.