H01J2237/022

Alternate materials and mixtures to minimize phosphorus buildup in implant applications
09812291 · 2017-11-07 · ·

Systems and processes for utilizing phosphorus fluoride in place of or in combination with, phosphine as a phosphorus dopant source composition, to reduce buildup of unwanted phosphorus deposits in ion implanter systems. The phosphorus fluoride may comprise PF3 and/or PF5. Phosphorus fluoride and phosphine may be co-flowed to the ion implanter, or each of such phosphorus dopant source materials can be alternatingly and sequentially flowed separately to the ion implanter, to achieve reduction in unwanted buildup of phosphorus solids in the implanter, relative to a corresponding process system utilizing only phosphine as the phosphorus dopant source material.

FLUORINATED COMPOSITIONS FOR ION SOURCE PERFORMANCE IMPROVEMENTS IN NITROGEN ION IMPLANTATION

Compositions, methods, and apparatus are described for carrying out nitrogen ion implantation, which avoid the incidence of severe glitching when the nitrogen ion implantation is followed by another ion implantation operation susceptible to glitching, e.g., implantation of arsenic and/or phosphorus ionic species. The nitrogen ion implantation operation is advantageously conducted with a nitrogen ion implantation composition introduced to or formed in the ion source chamber of the ion implantation system, wherein the nitrogen ion implantation composition includes nitrogen (N.sub.2) dopant gas and a glitching-suppressing gas including one or more selected from the group consisting of NF.sub.3, N.sub.2F.sub.4, F.sub.2, SiF.sub.4, WF.sub.6, PF.sub.3, PF.sub.5, AsF.sub.3, AsF.sub.5, CF.sub.4 and other fluorinated hydrocarbons of C.sub.xF.sub.y (x≥1, y≥1) general formula, SF.sub.6, HF, COF.sub.2, OF.sub.2, BF.sub.3, B.sub.2F.sub.4, GeF.sub.4, XeF.sub.2, O.sub.2, N.sub.2O, NO, NO.sub.2, N.sub.2O.sub.4, and O.sub.3, and optionally hydrogen-containing gas, e.g., hydrogen-containing gas including one or more selected from the group consisting of H.sub.2, NH.sub.3, N.sub.2H.sub.4, B.sub.2H.sub.6, AsH.sub.3, PH.sub.3, SiH.sub.4, Si.sub.2H.sub.6, H.sub.2S, H.sub.2Se, CH.sub.4 and other hydrocarbons of C.sub.xH.sub.y (x≥1, y≥1) general formula and GeH.sub.4.

ION SOURCE AND METHOD
20210375584 · 2021-12-02 ·

An ion source can have: a multiplicity of electrodes, which are mounted electrically separated from one another and have: a first electrode, which has a depression; a second electrode, which is arranged in the depression; a third electrode, which partially covers the depression and through which a slit passes which exposes the second electrode; one or more than one magnet, which is designed to provide a magnetic field in the slit.

METHODS AND APPARATUS FOR PRECLEANING AND TREATING WAFER SURFACES

Methods and apparatus for processing a substrate include cleaning and self-assembly monolayer (SAM) formation for subsequent reverse selective atomic layer deposition. An apparatus may include a process chamber with a processing volume and a substrate support including a pedestal, a remote plasma source fluidly coupled to the process chamber and configured to produce radicals or ionized gas mixture with radicals that flow into the processing volume to remove residue or oxides from a surface of the substrate, a first gas delivery system with a first ampoule configured to provide at least one first chemical into the processing volume to produce a SAM on the surface of the substrate, a heating system located in the pedestal and configured to heat a substrate by flowing gas on a backside of the substrate, and a vacuum system fluidly coupled to the process chamber and configured to control heating of the substrate.

Plasma process apparatus with low particle contamination and method of operating the same

Embodiments of the present disclosure disclose a plasma process apparatus with low particle contamination and a method of operating the same, wherein the plasma process apparatus comprises a chamber body and a liner, wherein a dielectric window is provided above the liner; the chamber body, the liner, and the dielectric window enclose a reaction space; a base for placing a wafer is provided at a bottom portion inside the reaction space; a vacuum pump device for pumping a gas out of the reaction space and maintaining a low pressure therein is provided below the base; a shutter for shuttering between an opening on a chamber body sidewall and an opening on a liner sidewall is provided inside the chamber body, for blocking contamination particles in the gas from flowing from a transfer module to the reaction space; a groove is provided at a lower portion of the liner, wherein a flowing space enclosed by a liner outer wall below the shutter and a chamber body inner wall is in communication with an inner space of the liner via the groove to form a gas flow path, such that the contamination particles entering the flowing space are pumped away by the vacuum pump device via the gas flow path. The present disclosure may not only keep the current wafer free from being contaminated, but also may reduce contamination for a next wafer transfer; besides, it enables introduction of clean air to make the contamination particles carried out of the reaction space with a more significant effect and a higher efficiency.

Process Kit Conditioning Chamber

An ex situ physical vapor deposition (PVD) process kit conditioning apparatus configured to condition process kit components of a PVD substrate processing chamber, the ex situ PVD process kit conditioning apparatus comprising a chamber assembly, a central cathode assembly configured to mount one or more targets. The apparatus is configured to receive one or more components of a process kit of a PVD substrate processing chamber and the central cathode assembly is positioned and configured so that the apparatus deposits the defect reduction coating substantially uniformly on an inner surface of a process kit component of the PVD substrate processing chamber.

APPARATUS AND METHOD FOR EXAMINING AND/OR PROCESSING A SAMPLE
20220178965 · 2022-06-09 ·

The present invention relates to an apparatus for examining and/or processing a sample, said apparatus comprising: (a) a scanning particle microscope for providing a beam of charged particles, which can be directed on a surface of the sample; and (b) a scanning probe microscope with a deflectable probe; (c) wherein a detection structure is attached to the deflectable probe.

Ion beam processing apparatus, electrode assembly, and method of cleaning electrode assembly

Provided is an ion beam processing apparatus including an ion generation chamber, a processing chamber, and electrodes to form an ion beam by extracting ions generated in the ion generation chamber to the processing chamber. The electrodes includes a first electrode disposed close to the ion generation chamber and provided with an ion passage hole to allow passage of the ions, and a second electrode disposed adjacent to the first electrode and closer to the processing chamber than the first electrode is, and provided with an ion passage hole to allow passage of the ions. The apparatus also includes a power unit which applies different electric potentials to the first electrode and the second electrode, respectively, so as to accelerate the ions generated by an ion generator in the ion generation chamber. A material of the first electrode is different from a material of the second electrode.

Drawing apparatus and control method thereof

A drawing apparatus includes: a drawing part; a cleaning-gas generator; a first valve between the cleaning-gas generator and the drawing part and adjusting a supply amount of gas to the drawing part; a first pressure gauge measuring a pressure in the drawing part; a compensation-gas introducing part introducing compensation-gas to be supplied between the cleaning-gas generator and the first valve; a second valve between the compensation-gas introducing part and the first valve and adjusting a supply amount of the compensation-gas; and a valve controller controlling the first and second valves, wherein the valve controller controls the first valve to supply the cleaning-gas at a predetermined flow rate to the drawing part and controls the second valve to cause a pressure in the drawing part to be a predetermined pressure when the first pressure gauge detects a pressure reduction due to a reduction in a supply flow rate of the cleaning-gas.

Method and system for the removal and/or avoidance of contamination in charged particle beam systems

A charged particle beam system is disclosed, comprising: a charged particle beam generator for generating a beam of charged particles; a charged particle optical column arranged in a vacuum chamber, wherein the charged particle optical column is arranged for projecting the beam of charged particles onto a target, and wherein the charged particle optical column comprises a charged particle optical element for influencing the beam of charged particles; a source for providing a cleaning agent; a conduit connected to the source and arranged for introducing the cleaning agent towards the charged particle optical element; wherein the charged particle optical element comprises: a charged particle transmitting aperture for transmitting and/or influencing the beam of charged particles, and at least one vent hole for providing a flow path between a first side and a second side of the charged particle optical element, wherein the vent hole has a cross section which is larger than a cross section of the charged particle transmitting aperture. Further, a method for preventing or removing contamination in the charged particle transmitting apertures is disclosed, comprising the step of introducing the cleaning agent while the beam generator is active.