Abstract:
Embodiments of the present disclosure generally relate to a cluster tool for processing semiconductor substrates. In one embodiment, a cluster tool includes a plurality of process chambers connected to a transfer chamber and each process chamber may simultaneously process four or more substrates. In order to reduce cost, each process chamber includes a substrate support for supporting four or more substrates, single showerhead disposed over the substrate support, and a single radio frequency power source electrically coupled to the showerhead. The showerhead may include a first surface facing the substrate support and a second surface opposite the first surface. A plurality of gas passages may be formed in the showerhead extending from the first surface to the second surface. Process uniformity is improved by increasing the density of the gas passages from the center of the showerhead to the edge of the showerhead.
Abstract:
Embodiments disclosed herein include a plasma source, an abatement system and a vacuum processing system for abating compounds produced in semiconductor processes. In one embodiment, a plasma source includes a dielectric tube and a coil antenna surrounding the tube. The coil antenna includes a plurality of turns, and at least one turn is shorted. Selectively shorting one or more turns of the coil antenna helps reduce the inductance of the coil antenna, allowing higher power to be supplied to the coil antenna that covers more processing volume. Higher power supplied to the coil antenna and larger processing volume lead to an improved DRE.
Abstract:
Embodiments disclosed herein include an abatement system for abating compounds produced in semiconductor processes. The abatement system includes a plasma source that has a first plate and a second plate parallel to the first plate. An electrode is disposed between the first and second plates and an outer wall is disposed between the first and second plates surrounding the electrode. The plasma source has a first plurality of magnets disposed on the first plate and a second plurality of magnets disposed on the second plate. The magnetic field created by the first and second plurality of magnets is substantially perpendicular to the electric field created between the electrode and the outer wall. In this configuration, a dense plasma is created.
Abstract:
Embodiments disclosed herein include an abatement system for abating compounds produced in semiconductor processes. The abatement system includes a plasma source that has a first plate and a second plate parallel to the first plate. An electrode is disposed between the first and second plates and an outer wall is disposed between the first and second plates surrounding the electrode. The plasma source has a first plurality of magnets disposed on the first plate and a second plurality of magnets disposed on the second plate. The magnetic field created by the first and second plurality of magnets is substantially perpendicular to the electric field created between the electrode and the outer wall. In this configuration, a dense plasma is created.