Patent ID: 6523494
Filing Date: 2003-02-25
Classification: C23C,H01L

Abstract:
A substrate processing apparatus, the apparatus comprising:a processing chamber; a gas delivery system configured to deliver a process gas to the processing chamber; a plasma generation system configured to form a plasma from the process gas; a pressure control system configured to control pressure within the processing chamber; a controller configured to control the gas delivery system, the plasma generation system, and the pressure control system; and a memory, coupled to the controller, comprising a computer-readable medium having a computer-readable program embodied therein that directs the operation of the substrate processing system, the computer-readable program including: (i) computer instructions to control the gas delivery system to introduce a first process gas comprising a silicon source and an oxygen source into the processing chamber; (ii) computer instructions to control the plasma generation system to form a plasma from the first process gas thereby depositing a first layer of silicon oxide on a substrate; (iii) computer instructions to, thereafter, control the gas delivery system to introduce activated oxygen into the processing chamber to enhance a surface sensitivity of a surface of the first layer of silicon oxide; and (iv) computer instructions to, thereafter, control the gas delivery system to introduce a second process gas comprising a hydrophobic silicon source and an oxygen source into the process chamber, while controlling the pressure control system to establish and maintain a sub-atmospheric pressure level in the processing chamber to deposit a porous second layer of silicon oxide on the surface of the first layer of silicon oxide.