Abstract:
A gas plenum arrangement for a substrate processing system includes a gas plenum body arranged to define a gas plenum between a coil and a processing chamber. The coil is arranged outside of an outer edge of the gas plenum body. A plurality of flux attenuating portions is arranged outside of the outer edge of the gas plenum body. The flux attenuation portions overlap the coil.
Abstract:
Methods of and apparatuses for laterally etching semiconductor substrates using an atomic layer etch process involving exposing an oxidized surface of a semiconductor substrate to a fluorine-containing etch gas and heating the substrate to remove non-volatile etch byproducts by a sublimation mechanism are provided herein. Methods also including additionally pulsing a hydrogen-containing gas when pulsing the fluorine-containing etch gas. Apparatuses also include an ammonia mixing manifold suitable for separately preparing and mixing ammonia for use in various tools.
Abstract:
A substrate processing system includes a processing chamber including a dielectric window and a pedestal for supporting a substrate during processing. A gas supply system supplies gas to the processing chamber. A coil is arranged outside of the processing chamber adjacent to the dielectric window. A radio frequency (RF) source supplies RF signals to the coil to create RF plasma in the processing chamber. N flux attenuating portions are arranged in a spaced pattern adjacent the coil, wherein N is an integer greater than one.
Abstract:
A substrate processing system includes a processing chamber including a dielectric window and a pedestal for supporting a substrate during processing. A gas supply system supplies gas to the processing chamber. A coil is arranged outside of the processing chamber adjacent to the dielectric window. A radio frequency (RF) source supplies RF signals to the coil to create RF plasma in the processing chamber. N flux attenuating portions are arranged in a spaced pattern adjacent the coil, wherein N is an integer greater than one.
Abstract:
The embodiments herein relate to methods and apparatus for etching a recessed feature in dielectric material. In various embodiments, a recessed feature is formed in two etching operations. The first etching operation partially etches the features and may take place in a reactor configured to produce a capacitively coupled plasma. The first etching operation may end before the underlying semiconductor material experiences substantial damage due to penetration of ions through the dielectric atop the semiconductor material. The second etching operation may take place in a reactor configured to produce an inductively coupled plasma. Both the first and second etching operations may themselves be multi-step, cyclic processes.
Abstract:
Exemplary embodiments are directed to controlling CD uniformity of a wafer by controlling trim time on temperature in a plasma processing system. The plasma processing system has a wafer support assembly including a plurality of independently controllable temperature control zones across a chuck and a controller that controls each temperature control zone. The controller receives process control and temperature data associated with at least one wafer previously processed in a plasma chamber of the plasma processing system. The controller also receives critical device parameters of a current wafer to be processed in the plasma chamber. The controller calculates a target trim time and a target temperature profile of the current wafer based on the process control and temperature data of the at least one previously processed wafers and the critical device parameters of the current wafer. The current wafer as subjected to a trimming operation for a duration of the target trim time while controlling temperatures in the temperature control zones to thereby control temperature of each device die location based on the target temperature profile.
Abstract:
Exemplary embodiments are directed to controlling CD uniformity of a wafer by controlling trim time on temperature in a plasma processing system. The plasma processing system has a wafer support assembly including a plurality of independently controllable temperature control zones across a chuck and a controller that controls each temperature control zone. The controller receives process control and temperature data associated with at least one wafer previously processed in a plasma chamber of the plasma processing system, and critical device parameters of a current wafer to be processed in the plasma chamber. The controller calculates a target trim time and a target temperature profile of the current wafer based on the process control and temperature data, and the critical device parameters. The current wafer is trimmed during the target trim time while the temperature of each device die location is controlled based on the target temperature profile.
Abstract:
Methods of and apparatuses for laterally etching semiconductor substrates using an atomic layer etch process involving exposing an oxidized surface of a semiconductor substrate to a fluorine-containing etch gas and heating the substrate to remove non-volatile etch byproducts by a sublimation mechanism are provided herein. Methods also including additionally pulsing a hydrogen-containing gas when pulsing the fluorine-containing etch gas. Apparatuses also include an ammonia mixing manifold suitable for separately preparing and mixing ammonia for use in various tools.
Abstract:
Methods of and apparatuses for laterally etching semiconductor substrates using an atomic layer etch process involving exposing an oxidized surface of a semiconductor substrate to a fluorine-containing etch gas and heating the substrate to remove non-volatile etch byproducts by a sublimation mechanism are provided herein. Methods also including additionally pulsing a hydrogen-containing gas when pulsing the fluorine-containing etch gas. Apparatuses also include an ammonia mixing manifold suitable for separately preparing and mixing ammonia for use in various tools.
Abstract:
The embodiments herein relate to methods and apparatus for etching a recessed feature in dielectric material. In various embodiments, a recessed feature is formed in two etching operations. The first etching operation partially etches the features and may take place in a reactor configured to produce a capacitively coupled plasma. The first etching operation may end before the underlying semiconductor material experiences substantial damage due to penetration of ions through the dielectric atop the semiconductor material. The second etching operation may take place in a reactor configured to produce an inductively coupled plasma. Both the first and second etching operations may themselves be multi-step, cyclic processes.