摘要:
An apparatus may include an exciter, disposed within a resonance chamber, to generate an RF power signal. The apparatus may include a resonator coil, disposed within the resonance chamber, to receive the RF power signal, and generate an RF output signal; and a pickup loop assembly, to receive the RF output signal and output a pickup voltage signal. The pickup loop assembly may include a pickup loop, disposed within the resonance chamber; and a variable attenuator, disposed at least partially between the resonator coil and the pickup loop. The variable attenuator may include a configurable portion, movable from a first position, attenuating a first amount of the RF output signal, to a second position, attenuating a second amount of the RF output signal, different from the first amount.
摘要:
An ion implantation system is provided having one or more conductive components comprised of one or more of lanthanated tungsten and a refractory metal alloyed with a predetermined percentage of a rare earth metal. The conductive component may be a component of an ion source, such as one or more of a cathode, cathode shield, a repeller, a liner, an aperture plate, an arc chamber body, and a strike plate. The aperture plate may be associated with one or more of an extraction aperture, a suppression aperture and a ground aperture.
摘要:
Embodiments relate to a grid short clearing system is provided for gridded ion beam sources used in industrial applications for materials processing systems that reduces grid damage during operation. In various embodiments, the ion source is coupled to a process chamber and a grid short clearing system includes methods for supplying a gas to the process chamber and setting the gas pressure to a predetermined gas pressure in the range between 50 to 750 Torr, applying an electrical potential difference between each adjacent pair of grids using a current-limited power supply, and detecting whether or not the grid shorts are cleared. The electrical potential difference between the grids is at least 10% lower than the DC electrical breakdown voltage between the grids with no contaminants.
摘要:
An ion implantation apparatus includes a beam scanner that provides a reciprocating beam scan in a beam scan direction in accordance with a scan waveform, a mechanical scanner that causes a wafer to reciprocate in a mechanical scan direction, and a control device that controls the beam scanner and the mechanical scanner to realize a target two-dimensional dose amount distribution on a surface of the wafer. The control device includes a scan frequency adjusting unit that determines a frequency of the scan waveform in accordance with the target two-dimensional dose amount distribution, and a beam scanner driving unit that drives the beam scanner by using the scan waveform having the frequency determined by the scan frequency adjusting unit.
摘要:
A technique disclosed in the present specification relates to an ion implanter capable of preventing a semiconductor substrate from being damaged by an abnormal electric discharge through a simple method. The ion implanter of this technique includes an ion irradiation unit configured to irradiate a surface of a semiconductor substrate with ions. The ion implanter also includes at least one electrode (needle electrode, annular electrode) disposed in a position in the vicinity of at least one of back and side surfaces of an end of the semiconductor substrate. The position is dischargeable to and from the semiconductor substrate. The at least one electrode (needle electrode, annular electrode) is spaced apart from the semiconductor substrate.
摘要:
An ion source with improved temperature control is disclosed. A portion of the ion source is nestled within a recessed cavity in a heat sink, where the portion of the ion source and the recessed cavity are each shaped so that expansion of the ion source causes high pressure thermal contact with the heat sink. For example, the ion source may have a tapered cylindrical end, which fits within a recessed cavity in the heat sink. Thermal expansion of the ion source causes the tapered cylindrical end to press against the recessed cavity in the heat sink. By proper selection of the temperature of the heat sink, the temperature and flow of coolant fluid through the heat sink, and the size of the gap between the heat sink and the ion source, the temperature of the ion source can be controlled.
摘要:
A metal surface modification apparatus having a tilting unit includes holding jigs having respective lower parts having curved surfaces to hold the implants; a movable holding base provided with a plurality of receiving depressions to have curved surfaces corresponding to the curved surfaces of the lower parts; and a stationary pushing plate disposed on the movable holding base to cover the movable holding base, and configured to be moved relative to the movable holding base and to have a plurality of through holes positioned to face the receiving depressions.
摘要:
A technique disclosed in the present specification relates to an ion implanter capable of preventing a semiconductor substrate from being damaged by an abnormal electric discharge through a simple method. The ion implanter of this technique includes an ion irradiation unit configured to irradiate a surface of a semiconductor substrate with ions. The ion implanter also includes at least one electrode (needle electrode, annular electrode) disposed in a position in the vicinity of at least one of back and side surfaces of an end of the semiconductor substrate. The position is dischargeable to and from the semiconductor substrate. The at least one electrode (needle electrode, annular electrode) is spaced apart from the semiconductor substrate.
摘要:
A system and method of treating air. Bipolar ionization is delivered to an airflow within a conduit from a tubeless ion generator. The ionized airflow may be delivered to a conditioned airspace by an HVAC system. In alternate applications, the airflow delivers ionized combustion air to an engine. The invention also includes a mounting assembly for positioning one or more ion generators into an airflow.
摘要:
A supply source for delivery of a CO-containing dopant gas composition is provided. The composition includes a controlled amount of a diluent gas mixture such as xenon and hydrogen, which are each provided at controlled volumetric ratios to ensure optimal carbon ion implantation performance. The composition can be packaged as a dopant gas kit consisting of a CO-containing supply source and a diluent mixture supply source. Alternatively, the composition can be pre-mixed and introduced from a single source that can be actuated in response to a sub-atmospheric condition achieved along the discharge flow path to allow a controlled flow of the dopant mixture from the interior volume of the device into an ion source apparatus.