Substrate processing tool with integrated metrology and method of using
A substrate processing tool configured for performing integrated substrate processing and substrate metrology, and methods of processing a substrate. The substrate processing tool includes a substrate transfer chamber, a plurality of substrate processing chambers coupled to the substrate transfer chamber, and a substrate metrology module coupled to the substrate transfer chamber. A substrate processing method includes processing a substrate in a first substrate processing chamber of a substrate processing tool, transferring the substrate from the first substrate processing chamber through a substrate transfer chamber to a substrate metrology module in the substrate processing tool, performing metrology on the substrate in the substrate metrology module, transferring the substrate from the substrate metrology module to a second substrate processing chamber through the substrate transfer chamber, and processing the substrate in the second substrate processing chamber.
1. A substrate processing method, comprising:
processing a substrate in a first substrate processing chamber of a substrate processing tool to perform a selective film deposition on the substrate;
transferring, after performing the selective film deposition on the substrate, the substrate from the first substrate processing chamber through a substrate transfer chamber to a substrate metrology module in the substrate processing tool;
performing metrology on the substrate in the substrate metrology module to characterize a loss of deposition selectivity on the substrate;
transferring, after performing the metrology, the substrate from the substrate metrology module to a second substrate processing chamber through the substrate transfer chamber; and
processing the substrate in the second substrate processing chamber to perform an etching process based on the characterized loss of the deposition selectivity, wherein
the substrate metrology module has a first end connected to the substrate transfer chamber and a second end connected to a transfer system,
the first end of the substrate metrology module is directly coupled to the substrate transfer chamber by a first gate valve, and the second end of the substrate metrology module is directly coupled to the transfer system by a second gate valve, and
the first gate valve separates the substrate metrology module from the substrate transfer chamber, and the second gate valve separates the transfer system from the substrate metrology module.
2. The substrate processing method of claim 1 , wherein the substrate metrology module includes one or more analytical tools that measure one or more material properties of a substrate or thin films and layers formed on the substrate.
3. The substrate processing method according to claim 1 , further comprising:
loading the substrate into the transfer system;
transferring, via the second gate valve, the substrate from the transfer system to the substrate transfer chamber via a load lock chamber; and
transferring, via the first gate valve, the substrate from the substrate transfer chamber to the first substrate processing chamber.
4. A substrate processing method, comprising
providing a substrate in a substrate processing tool, the substrate containing an exposed surface of a first material layer and an exposed surface of a second material layer;
forming a self-assembled monolayer (SAM) on the substrate in a first substrate processing chamber;
transferring the substrate from the first substrate processing chamber through a substrate transfer chamber to a second substrate processing chamber; and
selectively depositing a film on the first material layer and film nuclei on the self-assembled monolayer in the second substrate processing chamber;
transferring, after selectively depositing the film on the first material layer, the substrate from the second substrate processing chamber through the substrate transfer chamber to a substrate metrology module;
performing metrology on the film in the substrate metrology module to characterize a loss of deposition selectivity on the substrate;
transferring, after performing the metrology, the substrate from the substrate metrology module through the substrate transfer chamber to a third substrate processing chamber; and
removing the film nuclei from the self-assembled monolayer by etching in the third substrate processing chamber based on the characterized loss of the deposition selectivity, wherein
the substrate metrology module has a first end connected to the substrate transfer chamber and a second end connected to a transfer system,
the first end of the substrate metrology module is directly coupled to the substrate transfer chamber by a first gate valve, and the second end of the substrate metrology module is directly coupled to the transfer system by a second gate valve, and
the first gate valve separates the substrate metrology module from the substrate transfer chamber, and the second gate valve separates the transfer system from the substrate metrology module.
5. The substrate processing method of claim 4 , further comprising
performing a treatment process on the substrate in a fourth substrate processing chamber using a reactive treatment gas, heat-treatment, or a combination thereof.
6. The substrate processing method of claim 4 , wherein the first material layer includes a dielectric layer.
7. The substrate processing method of claim 4 , wherein the second material layer includes a metal layer.
8. The substrate processing method of claim 7 , wherein the metal layer contains Cu, Al, Ta, Ti, W, Ru, Co, Ni, or Mo.
9. The substrate processing method of claim 4 , wherein the film includes a metal oxide.
10. The substrate processing method of claim 4 , wherein a density of the SAM is greater on the second material layer than on the first material layer.
11. The substrate processing method of claim 4 , wherein the SAM includes a plurality of molecules containing a head group, a tail group, and a functional end group, wherein the head group includes a thiol, a silane, or a phosphonate.