H01J37/3222

MICROWAVE SUPPLY MECHANISM, PLASMA TREATMENT APPARATUS, AND PLASMA TREATMENT METHOD
20220223380 · 2022-07-14 ·

A microwave supply mechanism for supplying microwaves from a microwave-generating power supply part to a load, includes: a microwave transmission path having a coaxial structure and through which the microwaves from the microwave-generating power supply part are transmitted; an antenna provided at a tip of the microwave transmission path and configured to radiate the microwaves and supply the microwaves to the load; an impedance matching part provided in the microwave transmission path and configured to match impedance on a power supply side and impedance on a load side; and an output voltage adjustment part provided between the impedance matching part and the antenna and configured to adjust a microwave output voltage in the antenna by adjusting impedance.

Plasma density monitor, plasma processing apparatus, and plasma processing method
11410835 · 2022-08-09 · ·

A plasma density monitor for monitoring a plasma density of surface wave plasma in a chamber accommodating a substrate and performs a plasma process on the substrate. The monitor includes: a monopole antenna installed to extend from a wall of the chamber toward an interior of the chamber and to be perpendicular to an inner wall surface of the chamber, and configured to receive a surface wave; a coaxial line configured to extract a detection value from a signal received by the monopole antenna; a length adjuster configured to adjust a length of the monopole antenna; and a controller configured to control the length adjuster so as to obtain a wavelength of the surface wave and the plasma density of the surface wave plasma from the wavelength of the surface wave.

DISTRIBUTED GROUND SINGLE ANTENNA ION SOURCE
20220223376 · 2022-07-14 ·

Embodiments presented provide for a distributed ground single antenna ion source used in scientific experimentation

Plasma Processing System and Method Using Radio Frequency (RF) and Microwave Power
20220246386 · 2022-08-04 ·

In one example, a plasma processing system includes a vacuum system, a plasma processing chamber including a chamber cavity coupled to the vacuum system, a substrate holder including a surface disposed inside the chamber cavity, a radio frequency (RF) source electrode coupled to an RF power source, the RF source electrode configured to ignite plasma in the chamber cavity. The system includes a microwave source coupled to a microwave oscillator, and a conductive spatial uniformity component including a plurality of through openings, where the conductive spatial uniformity component includes a major surface electromagnetically coupled to the microwave source, the major surface configured to couple microwave power to the plasma in the chamber cavity.

Plasma Processing System And Method Using Radio Frequency And Microwave Power
20220246402 · 2022-08-04 ·

A plasma processing system includes a vacuum system, a plasma processing chamber including a chamber cavity coupled to the vacuum system, a substrate holder including a surface inside the chamber cavity, a radio frequency (RF) source electrode coupled to an RF power source, the RF source electrode configured to ignite plasma in the chamber cavity. The system includes microwave source coupled to a microwave oscillator, and an electromagnetic (EM) metasurface, where the EM metasurface having a major surface electromagnetically coupled to the microwave source, the major surface configured to couple microwave power to the plasma in the chamber cavity.

System and method for decapsulation of plastic integrated circuit packages
11295968 · 2022-04-05 · ·

System and method for decapsulation of plastic integrated circuit packages by providing a microwave generator, providing a Beenakker resonant cavity connected to the microwave generator, which cavity comprises a coupling antenna loop, providing the cavity with a tube or tubes for supply of plasma gas and etchant gas or gases and with means for igniting the plasma gas, and providing that the cavity is set at a predefined value of its Q factor by embodying the coupling antenna loop and/or a wire optionally attached to the coupling antenna loop in a metal or metal alloy, or providing that at least at part of its surface area the coupling antenna loop and/or the wire is coated with a metal or metal alloy different than copper and with a higher resistivity than copper.

Plasma chemical vapor deposition reactor with a microwave resonant cavity

This invention relates to a plasma chemical vapor deposition microwave resonant cavity, which has a high focusing ability and can be flexibly configured. The resonant cavity is a rotary body formed by two isosceles triangles intersecting at the vertex angles with a Boolean union operation. The base angles of the two triangles are 50°˜75°. Between 2nλ˜(2n+0.5) λ, the base lengths of the two triangles are equal or have an nλ difference, where n is an integer and λ is the microwave wavelength. The distance between the centroids of the upper and the lower isosceles triangles is 0˜4/5λ. A strongly focused electric field can be formed in the cavity by adjusting the base lengths, base angles and centroid distance. Different dielectric windows, microwave coupling modes and gas inlet and outlet modes can be selected in the cavity to fit specific applications. The cavity has simple structures.

PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD
20220068606 · 2022-03-03 ·

There is provided a plasma processing apparatus. The apparatus comprises a chamber having a processing space for performing plasma processing on a substrate and a combining space for combining electromagnetic waves, a dielectric window separating the processing space from the combining space, an antenna unit having a plurality of antennas radiating the electromagnetic waves to the combining space and functioning as a phased array antenna, an electromagnetic wave output unit that outputs the electromagnetic waves to the antenna unit, a stage on which the substrate is placed, a gas supply unit that supplies a gas for ALD film formation to the processing space, and a controller that controls the gas supply unit to supply the gas to perform the ALD film formation and control localized plasma to move at a high speed in the processing space by causing the antenna unit to function as the phased array antenna.

METHOD OF POST-DEPOSITION TREATMENT FOR SILICON OXIDE FILM
20210313170 · 2021-10-07 ·

A method of post-deposition treatment for silicon oxide film includes: providing in a reaction space a substrate having a recess pattern on which a silicon oxide film is deposited; supplying a reforming gas for reforming the silicon oxide film to the reaction space in the absence of a film-forming precursor, said reforming gas being composed primarily of He and/or H.sub.2; and irradiating the reforming gas with microwaves in the reaction space having a pressure of 200 Pa or less to generate a direct microwave plasma to which the substrate is exposed, thereby reforming the silicon oxide film.

MODULAR MICROWAVE SOURCE WITH LOCAL LORENTZ FORCE
20210287882 · 2021-09-16 ·

Embodiments include methods and apparatuses that include a plasma processing tool that includes a plurality of magnets. In one embodiment, a plasma processing tool may comprise a processing chamber and a plurality of modular microwave sources coupled to the processing chamber. In an embodiment, the plurality of modular microwave sources includes an array of applicators positioned over a dielectric plate that forms a portion of an outer wall of the processing chamber, and an array of microwave amplification modules. In an embodiment, each microwave amplification module is coupled to one or more of the applicators in the array of applicators. In an embodiment, the plasma processing tool may include a plurality of magnets. In an embodiment, the magnets are positioned around one or more of the applicators.