H01J37/3171

Ion focusing device

Apparatus include a plurality of electrode arrangements spaced apart from each other opposite an ion propagation axis and defining an ion transfer channel that extends along the ion propagation axis that tapers between an input end that is situated to receive ions and an output end that is situated to couple the received ions to an input end of an ion guide. Methods include positioning a plurality of electrode arrangements at oblique angles opposite an ion propagation axis so as to form a ion transfer channel that tapers between an input end and an output end, and coupling the output end of the ion transfer channel to an input end of an ion optical element so as to direct ions in the ion transfer channel into the ion optical element. Related systems are also disclosed.

WAFER SUPPORTING DEVICE
20220336237 · 2022-10-20 · ·

A wafer support device includes a support base having a wafer-facing surface, the support base comprising a heater, and an electrostatic chuck supported by the support base, the electrostatic chuck having an attraction surface configured to attract a wafer for wafer processing. During the wafer processing, the wafer-facing surface and the attraction surface are positioned at respective different positions in a direction perpendicular to the wafer-facing surface so that the attraction surface is separated from the wafer-facing surface by a distance.

CONTROLLER AND CONTROL TECHNIQUES FOR LINEAR ACCELERATOR AND ION IMPLANTER HAVING LINEAR ACCELARATOR
20230125883 · 2023-04-27 · ·

An apparatus may include global control module, the global control module including a digital master clock generator and a master waveform generator. The apparatus may also include a plurality of resonator control modules, coupled to the global control module. A given resonator control module of the plurality of resonator control modules may include a synchronization module, having a first input coupled to receive a resonator output voltage pickup signal from a local resonator, a second input coupled to receive a digital master clock signal from the digital master clock generator, and a first output coupled to send a delay signal to the master waveform generator.

Mismatched Optics for Angular Control of Extracted Ion Beam

An ion source capable of extracting a ribbon ion beam with improved vertical angular uniformity is disclosed. The extraction plate and extraction optics are designed such that there is at least one non-uniform gap between adjacent components. A non-uniform gap may be effective in reducing angular spread non-uniformity of the extracted ribbon ion beam. Specifically, for a given gap in the Z direction, ions extracted from regions with lower plasma density may have more vertical angular spread. A larger gap in the Z direction between components in this region may make the vertical angular spread closer to the vertical angular spread of ions extracted from regions with higher plasma density. The non-uniform gap may be created by having an extraction plate that is flat or curved and electrodes that are flat, convex or concave. In certain embodiments, the non-uniform gap is located between the extraction plate and the suppression electrode.

Apparatus and method for reduction of particle contamination by bias voltage
11600464 · 2023-03-07 · ·

The invention provides a bias voltage to the component (such as the Faraday cup) for reducing the generation of particles, such as the implanted ions and/or the combination of the implanted ions and the material of the component, and preventing particles peeling away the component. The strength of the biased voltage should not significantly affect the implantation of ions into the wafer and should significantly prevent the emission of radiation and/or electrons away the biased component. How to provide and adjust the biased voltage is not limited, both the extra voltage source and the amended Pre-Amplifier are acceptable. Moreover, due to the electric field generated by the Faraday cup is modified by the biased voltage, the ion beam divergence close to the Faraday cup may be reduced such that the potential difference between the ion beam measured by the profiler and received by the Faraday cup may be minimized.

Apparatus and techniques for ion energy measurement in pulsed ion beams
11476084 · 2022-10-18 · ·

An apparatus may include a first beam sensor, disposed adjacent a first position along a beamline. The apparatus may further include a second beam sensor, disposed adjacent a second position along the beamline, at a predetermined distance, downstream of the first beam sensor. The apparatus may include a detection system, coupled to the first beam sensor and to the second beam sensor to receive from a pulsed ion beam a first electrical signal from the first beam sensor and a second electrical signal from the second beam sensor.

Ion beam profiling system and related methods
11598890 · 2023-03-07 · ·

An ion beam profiling system include a beam profiling element, an ion sensitive element electrically isolated from the beam profiling element, an ion source configured to emit an ion beam at the beam profiling element and the ion sensitive element, and a current measuring device coupled to the ion sensitive element. The beam profiling element includes a plate of material having two parallel major surfaces, a first slit aperture extending through the plate of material and having a first longitudinal length extending in a direction parallel to the two parallel major surfaces, and a second slit aperture extending through the plate of material and having a second longitudinal length extending in a direction parallel to the two parallel major surfaces, wherein the first longitudinal length of the first slit aperture is perpendicular to the second longitudinal length of the second slit aperture.

LINEAR ACCELERATOR COIL INCLUDING MULTIPLE FLUID CHANNELS

Embodiments herein are directed to a linear accelerator assembly for an ion implanter, wherein the linear accelerator includes a jacketed resonator coil. In some embodiments, a linear accelerator assembly may include a first fluid conduit and a coil resonator coupled to the first fluid conduit, wherein the coil resonator is operable to receive a first fluid via the first fluid conduit, wherein the coil resonator comprises a first coil conduit adjacent a second coil conduit, and wherein a first fluid channel defined by the first coil conduit is operable to receive the first fluid.

Method and apparatus for non line-of-sight doping

A method of doping a substrate. The method may include providing a substrate in a process chamber. The substrate may include a semiconductor structure, and a dopant layer disposed on a surface of the semiconductor structure. The method may include maintaining the substrate at a first temperature for a first interval, the first temperature corresponding to a vaporization temperature of the dopant layer. The method may further include rapidly cooling the substrate to a second temperature, less than the first temperature, and heating the substrate from the second temperature to a third temperature, greater than the first temperature.

Method and apparatus for non line-of-sight doping

A method of doping a substrate. The method may include providing a substrate in a process chamber. The substrate may include a semiconductor structure, and a dopant layer disposed on a surface of the semiconductor structure. The method may include maintaining the substrate at a first temperature for a first interval, the first temperature corresponding to a vaporization temperature of the dopant layer. The method may further include rapidly cooling the substrate to a second temperature, less than the first temperature, and heating the substrate from the second temperature to a third temperature, greater than the first temperature.