Abstract:
In some embodiments of the present invention, methods of using one or more small spot showerhead apparatus to deposit materials using CVD, PECVD, ALD, or PEALD on small spots in a site isolated, combinatorial manner are described. The small spot showerheads may be configured within a larger combinatorial showerhead to allow multi-layer film stacks to be deposited in a combinatorial manner.
Abstract:
Systems and methods to determine ozone concentration in a gas mixture of ozone and oxygen, based on measurements of a total mass flow and a corresponding change in a chamber pressure accepting the mixture flow, can enable the measurements of ozone concentration at low pressure settings. The ozone concentration determination can be applied to a vacuum processing chamber, enabling precision semiconductor processing.
Abstract:
The invention relates to compositions of purified filamentous bacteriophage, as well as methods that allow reproducible purification of high concentrations of filamentous bacteriophage.
Abstract:
A top assembly for a processing chamber having a back plate and a hub is provided. The back plate has a first portion and a second portion. The first portion is connected to the second portion through a central region of the back plate, wherein a gap is defined between opposing surfaces of the first and second portions outside the central region. The first portion includes an embedded heating element. The hub is affixed to a top surface of the second portion of the back plate over the central region. The hub has a top surface with a plurality of channel openings defined within a central region of the hub and a bottom surface having a central extension with a plurality of channels defined therethrough. The bottom surface includes an annular extension spaced apart from the central extension.
Abstract:
A processing chamber is provided. The processing chamber includes a lid having a plurality of valves affixed thereto, the plurality of valves operable to enable process gases to flow into the chamber. The chamber includes a bottom portion, where the bottom portion includes a base and side walls extending from the base. A surface of the base is configured to support a substrate. A showerhead is affixed to a bottom surface of the lid. A bottom surface of the showerhead is configured to include a central port for providing process gases into the chamber. The central port is surrounded by an annular pump channel. The annular pump channel is surrounded by an annular purge channel, where a first ridge separates the delivery region and the annular pump channel and a second ridge separates the annular pump channel and the annular purge channel.
Abstract:
A top assembly for a processing chamber having a back plate and a hub is provided. The back plate has a first portion and a second portion. The first portion is connected to the second portion through a central region of the back plate, wherein a gap is defined between opposing surfaces of the first and second portions outside the central region. The first portion includes an embedded heating element. The hub is affixed to a top surface of the second portion of the back plate over the central region. The hub has a top surface with a plurality of channel openings defined within a central region of the hub and a bottom surface having a central extension with a plurality of channels defined therethrough. The bottom surface includes an annular extension spaced apart from the central extension.
Abstract:
A method of improving temperature uniformity across a wafer or substrate is provided. The inventors have discovered that thermal radiation reflected from the showerhead injector affects the temperature uniformity across the wafer. Temperature uniformity across the wafer, particularly from the center to edge of the wafer, is improved by controlling the reflected energy from the showerhead. Control of the reflected energy from the showerhead is achieved by a variety of means, including changing the emissivity of the showerhead, creating different zones of emissivity of the showerhead, selectively heating the showerhead, varying the distance between the showerhead and the wafer, and increasing reflectivity of the showerhead in selected regions by employing an ring configured to emit thermal radiation to the showerhead which is then reflected back to the wafer.
Abstract:
In some embodiments of the present invention, one or more small spot showerhead apparatus are used to deposit materials using CVD, PECVD, ALD, or PEALD on small spots in a site isolated, combinatorial manner. The small spot showerheads may be configured within a larger combinatorial showerhead to allow multi-layer film stacks to be deposited in a combinatorial manner.
Abstract:
Embodiments provided herein describe substrate processing fluid delivery systems and methods. The substrate processing fluid delivery systems include a flow regulator. A fluid conduit assembly is coupled to the flow regulator and a processing chamber of a substrate processing apparatus. A plurality of processing fluid containers is coupled to the fluid conduit assembly. A plurality of valves is coupled to the fluid conduit assembly. The plurality of valves are configurable to selectively place each of the plurality of processing fluid containers in fluid communication with only the flow regulator or the processing chamber of the substrate processing apparatus through the fluid conduit assembly.
Abstract:
A processing chamber is provided. The processing chamber includes a lid having a plurality of valves affixed thereto, the plurality of valves operable to enable process gases to flow into the chamber. The chamber includes a bottom portion, where the bottom portion includes a base and side walls extending from the base. A surface of the base is configured to support a substrate. A showerhead is affixed to a bottom surface of the lid. A bottom surface of the showerhead is configured to include a central port for providing process gases into the chamber. The central port is surrounded by an annular pump channel. The annular pump channel is surrounded by an annular purge channel, where a first ridge separates the delivery region and the annular pump channel and a second ridge separates the annular pump channel and the annular purge channel.