Patent classifications
H01J37/3444
Sputter deposition source, apparatus for sputter deposition and method of assembling thereof
A sputter deposition source for sputter deposition in a vacuum chamber is described. The source includes a wall portion of the vacuum chamber; a target providing a material to be deposited during the sputter deposition; an RF power supply for providing RF power to the target; a power connector for connecting the target with the RF power supply; and a conductor rod extending through the wall portion from inside of the vacuum chamber to outside of the vacuum chamber, wherein the conductor rod is connected to one or more components inside of the vacuum chamber and wherein the conductor rod is connected to the RF power supply outside of the vacuum chamber to generate a defined RF return path through the conductor rod.
Sputter unit
A sputter unit is introduced comprising a housing, a gas inlet, an interface for removable connecting the sputter unit to a vacuum chamber, a gas outlet arranged for supplying a process gas received via the gas inlet to the vacuum chamber, an interface for removable connecting the sputter unit to a base unit comprising a vacuum pump for generating a vacuum in the vacuum chamber, and a transformer arranged in the housing for increasing a supply voltage into an ionisation voltage for ionising the process gas supplied via the gas outlet to the vacuum chamber.
Apparatus For Depositing Material On The Surface Of A Substrate
An apparatus with a deposition source and a substrate holder having a source mounting portion, which is rotatable about a first axis, a shielding element, which is disposed between the deposition source and the substrate holder, and a drive arrangement. The deposition source has a material outlet opening from which material is emitted. A longitudinal axis of an elongate central region of the material outlet opening extends parallel and centrally between the edges of the material outlet opening. The deposition source is mounted to the source mounting portion such that the longitudinal axis of the central region is parallel to the first axis. The shielding element has an aperture. The drive arrangement controls rotation of the source mounting portion, adjustment of a width of the aperture, and relative movement between the substrate holder and both the source mounting portion and the shielding element.
Plasma processing device and high-frequency generator
Provided is a plasma processing device which processes an object to be processed using plasma. The plasma processing device includes: a processing container configured to perform a processing by the plasma therein; and a plasma generation mechanism including a high-frequency generator disposed outside the processing container to generate high-frequency waves. The plasma generation mechanism is configured to generate the plasma in the processing container using the high-frequency waves generated by the high-frequency generator. The high-frequency generator includes a high-frequency oscillator configured to oscillate the high-frequency waves and an injection unit configured to inject a signal into the high-frequency oscillator. The signal has a frequency which is the same as a fundamental frequency oscillated by the high-frequency oscillator and has reduced different frequency components.
Sputtering system with a plurality of cathode assemblies
A magnetron sputtering system includes a substrate mounted within a vacuum chamber. A plurality of cathode assemblies includes a first set of cathode assemblies and a second set of cathode assemblies, and is configured for reactive sputtering. Each cathode assembly includes a target comprising sputterable material and has an at least partially exposed planar sputtering surface. A target support is configured to support the target in the vacuum chamber and rotate the target relative to the vacuum chamber about a target axis. A magnetic field source includes a magnet array. A cathode assemblies controller assembly is operative to actuate the first set of cathode assemblies without actuating the second set of cathode assemblies, and to actuate the second set of cathode assemblies without actuating the first set of cathode assemblies.
METHOD OF CONTROLLING ION ENERGY DISTRIBUTION USING A PULSE GENERATOR WITH A CURRENT-RETURN OUTPUT STAGE
Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
PHYSICAL VAPOR DEPOSITION WITH ISOTROPIC NEUTRAL AND NON-ISOTROPIC ION VELOCITY DISTRIBUTION AT THE WAFER SURFACE
In a plasma enhanced physical vapor deposition of a material onto workpiece, a metal target faces the workpiece across a target-to-workpiece gap less than a diameter of the workpiece. A carrier gas is introduced into the chamber and gas pressure in the chamber is maintained above a threshold pressure at which mean free path is less than 5% of the gap. RF plasma source power from a VHF generator is applied to the target to generate a capacitively coupled plasma at the target, the VHF generator having a frequency exceeding 30 MHz. The plasma is extended across the gap to the workpiece by providing through the workpiece a first VHF ground return path at the frequency of the VHF generator.
Sputtering Cathode, Sputtering Cathode Assembly, and Sputtering Apparatus
The sputtering cathode has a tubular shape having a pair of long sides facing each other in cross-sectional shape, has a sputtering target whose erosion surface faces inward, and a magnetic circuit is provided along the sputtering target. The pair of long sides are constituted by rotary targets each having a cylindrical shape. The rotary target is internally provided with a magnetic circuit and configured to allow the flow of cooling water. The magnetic circuit is provided parallel to the central axis of the rotary target and has a rectangular cross-sectional shape having a long side perpendicular to the radial direction of the rotary target.
Sputtering Cathode, Sputtering Cathode Assembly, and Sputtering Apparatus
The sputtering cathode has a tubular shape having a pair of long sides facing each other in cross-sectional shape, has a sputtering target whose erosion surface faces inward, and a magnetic circuit is provided along the sputtering target. The pair of long sides are constituted by rotary targets each having a cylindrical shape. The rotary target is internally provided with a magnetic circuit and configured to allow the flow of cooling water. The magnetic circuit is provided parallel to the central axis of the rotary target and has a rectangular cross-sectional shape having a long side perpendicular to the radial direction of the rotary target.
Method of controlling ion energy distribution using a pulse generator with a current-return output stage
Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.