235 results about "Ion beam sputtering" patented technology

A reflective-type mask blank for EUV lithography for reducing the EUV ray reflectance at the absorbing layer and a method for producing the mask blank are presented. A reflective-type mask blank for EUV lithography comprising a substrate and a reflective layer for reflecting EUV light and an absorbing layer for absorbing EUV light, which are formed on the substrate in this order, the reflective-type mask blank for EUV lithography being characterized in that the absorbing layer is a Cr layer of low EUV ray reflectance deposited by an ion beam sputtering method.

A fabrication process for a tunneling magnetoresistance (TMR) sensor is disclosed. In particular, a unique method of forming a barrier layer of the TMR sensor is utilized so that the TMR sensor exhibits good magnetic and TMR properties. In one particular example, the barrier layer is formed by depositing a metallic film in an argon gas in a DC magnetron sputtering module, depositing an oxygen-doped metallic film in mixed xenon and oxygen gases in an ion-beam sputtering module, and oxidizing these films in an oxygen gas in an oxygen treatment module. This three-step barrier layer formation process minimizes oxygen penetration into ferromagnetic (FM) sense and pinned layers of the TMR sensor and optimally controls oxygen doping into the barrier layer. As a result, the FM sense and pinned layers exhibit controlled magnetic properties, the barrier layer provides a low junction resistance-area product, and the TMR sensor exhibits a high TMR coefficient.

An ion source apparatus includes a rare gas supply source supplying rare gas instead of ion source gas to a plasma chamber, means to determine time and timing for cleaning electrodes in consideration of a collecting amount of insulation layers accreting to the electrodes of an extraction electrode system. Based on the above, the ion source apparatus removes the insulation layers by sputtering with ion beam of the rare gas while adjusting extraction or accelerate voltage and supply amount of the rare gas as a setting parameter. Moreover, by adjusting the setting parameter which changes a diameter of ion beam based on the rare gas when the ion beam collides onto each electrode surface of the extraction electrode system, the beam diameter is focused within an effective range in which intension of the sputtering of the insulation layers is maximized thus evenly removing the insulation layers.

According to this method for producing a magnetic tunnel junction, a film of a dielectric material capable of acting as a tunnel barrier is deposited between two nanocrystalline or amorphous magnetic films. The dielectric material constituting the tunnel barrier consists of an at least partially crystalline perovskite, and said material is deposited by ion beam sputtering in a vacuum chamber.

A laminated stent encapsulated with a metal coating is provided. The metal coating may be a very thin metal coating. Portions of the metal coating may be removed such that the metal coating covers voids in the laminate, particularly in the area where the different layers of the laminated stent come together. The metal coating for the laminated stent may be provided by sputtering, such as vacuum deposition or ion beam sputtering, spraying, dipping, or other known methods.

A limiting factor in the operation of EUV lithographic devices is the lifetime or the reflectivity of the reflective optics that is reduced by contamination with carbon-containing substances. Protective coatings that are resistant to oxidation or are inert against water are already known. According to the invention it is proposed to deposit protective coatings on, for example, multilayers that suppress the growth of carbon-containing substances in combination with layers that are inert against residual gas atmosphere and energy input. Even with a long operating time a high reflectivity is thereby retained. The protective coatings may be deposited by electron-beam vaporization, magnetron- or ion-beam sputtering.

A method for depositing, by ion beam sputtering, a multilayer reflective coating of a reflective mask blank for EUV lithography on a substrate having a concave defect formed thereon, characterized in that the method comprises carrying out ion beam sputtering so that an absolute value of an angle α formed between a normal line of a substrate and sputtered particles landing on the substrate is maintained so as to satisfy the formula of 35°≦α≦80° while rotating the substrate about a central axis thereof.

An ion beam sputtering film deposition apparatus is provided which can form a high-quality thin film that is dense, smooth and faultless. The film deposition apparatus has ion beam irradiating unit, a target 105 containing a film forming substance to be sputtered, and holding unit 112 to hold a substrate 106 on which the sputtered film forming substance is deposited. The ion beam irradiating unit irradiates gas cluster ions to both the target 105 and the substrate 106.

The invention discloses a multifunctional ion beam sputtering and etching and in-situ physical property analysis system. The system comprises an ion beam sputtering and etching chamber, a physical property analyzing chamber, a sample exchange vacuum cavity, a sputtering sedimentation and etching workpiece stage arranged at the center on the top of the sputtering and etching chamber, an etching ion source arranged at the center on the bottom of the sputtering and etching chamber, two sputtering target stages arranged on the lower part of the sputtering and etching chamber, two sputtering ion source arranged on the middle part of the sputtering and etching chamber, an auxiliary washing ion source arranged on the middle part of the sputtering and etching chamber, and a set of X-ray photoelectron spectroscopy analysis system arranged in the physical property analyzing chamber. The sample exchange vacuum cavity is used for realizing the exchanging and transporting of the sample between thesputtering and etching chamber and the physical property analyzing chamber. The multiple functions are combined in the equipment. The equipment can be used in sputtering sedimentation, etching, polishing and thinning, heat treatment, and sample in-situ physical property analysis of high-quality multi-layer ultra-thin media and metal film materials.

The invention discloses multifunctional ion beam sputtering equipment which comprises a vacuum chamber, a sputtering workbench, two sputtering target platforms, two sputtering ion sources and an assistant cleaning ion source, wherein the sputtering workbench is arranged in the top middle position of the vacuum chamber; the lower surface of the sputtering workbench is parallel to the horizontal plane; the two sputtering target platforms are arranged at the lower part of the vacuum chamber and symmetrical bilaterally with respect to the direction of the perpendicular bisector of the sputtering workbench; the two sputtering ion sources are arranged in the middle of the vacuum chamber and symmetrical bilaterally arranged in the direction of the perpendicular bisector of the sputtering workbench; an emitted ion beam and a target surface loaded on the sputtering target platforms form an angle of 45 DEG; the assistant cleaning ion source is arranged in the middle of the vacuum chamber; and the emitted ion beam and the lower surface of the sputtering workbench form an angle of 30 DEG. The equipment has various functions and can be used for sputtering deposition, etching, polishing thinning and heat treatment of high-quality multilayer ultrathin media and metal film materials.

The invention relates to a preparation method for a tantalum oxide film with a high laser damage threshold under a high-temperature environment and belongs to the preparation method for an optical film. The preparation method comprises the following steps: plating a tantalum oxide film on a clean substrate according to a double ion beam sputtering method; performing post-processing on a prepared film in laser pre-processing and annealing manner, thereby achieving better functions of repairing film defect and relieving film stress; and preparing a laser film capable of being applied to high-temperature environment. The preparation method provided by the invention has the advantages that: 1) the film prepared according to the double ion beam sputtering method is compact, the characteristic of easiness in moisture absorption of a loosened film prepared according to an electronic beam preparation method is improved, and the stability is better; 2) the laser pre-processing and annealing combined method is adopted, thereby overcoming the limitation caused by traditionally adopting a single method, and being beneficial to greatly increasing the threshold; and 3) the film prepared according to the method can be used under a high-temperature environment with the highest temperature at 350 DEG C, and the problem of the prior art that only the laser film used under room temperature can be prepared is solved.

The invention relates to a preparation method of a diaphragm and a lithium ion battery with the diaphragm prepared through the preparation method of the diaphragm. The preparation method of the diaphragm includes the following steps that the two surfaces of an organic base material are coated with a ceramic material through the physical vapor deposition technology, the diaphragm is obtained, the diaphragm is an organic diaphragm coated with the ceramic material, and the physical vapor deposition technology is at least one of magnetron sputtering, ion beam sputtering, pulsed laser deposition, atomic layer deposition and electronic beam evaporation. The technological process of the physical vapor deposition technology is simple, the environment is improved, no pollution is caused, fewer consumables are adopted, and a formed film is uniform and dense; the binding force of the ceramic material and the organic base body is high, the mechanical adhesion of the ceramic material layer and the base material in the prepared diaphragm is high, and application is promoted. In addition, the lithium ion battery is designed and comprises the diaphragm prepared through the preparation method of the diaphragm.

The invention discloses a p-CuO-n-ZnO solar cell. An indium-tin-oxide (ITO) substrate, a vertically oriented ZnO nanorod array, a CuO film and an Au electrode are superposed in sequence from the bottom layer to the top layer, wherein the vertically oriented ZnO nanorod array is used as an n-type semiconductor absorption layer, and the CuO film is used as a p-type semiconductor light absorption layer and a hole transporting layer. The preparation method of the p-CuO-n-ZnO solar cell comprises the following steps of: preparing a ZnO seed crystal layer on ITO by utilizing a sol-gel method; preparing the vertically oriented ZnO nanorod array by utilizing a chemical bath deposition method; preparing the CuO film on the ZnO nanorod array by utilizing an in-situ growth method; and sputtering the Au electrode by using an ion beam sputtering system. The invention has the advantages that the equipment adopted by the preparation method is simple, and the cost is low; as CuO is adopted to serve as the light absorption layer and the hole transporting layer, compared with organic materials, the CuO has higher electromigration capacity; and by combining with the electrical conduction characteristic of inorganic ZnO with high light absorption and low thermal emittance of the CuO, the photoelectric conversion efficiency of the solar cell can be effectively increased.

The invention relates to a method for preparing a germanium quantum dot doped nano-titanium dioxide composite film through ion beam sputtering. The method comprises the following steps of: cleaning a substrate and a target, placing the substrate and the target into a sputtering chamber, and performing pre-sputtering cleaning on the substrate and the target under vacuum and under protection of argon; performing alternate sputtering on titanium dioxide and the germanium target by argon ion beams with certain projected current and voltage to deposit a titanium dioxide film and a germanium film on the substrate to obtain a germanium-doped nano-titanium dioxide composite film in which the titanium dioxide film is taken as a covering layer; and annealing to obtain the germanium quantum dot doped nano-titanium dioxide composite film. The invention has the advantages that: the method is simple, conditions are mild, the content, scale, morphology and distribution of germanium quantum dots can be freely adjusted in the process, and the disadvantage that the quantum dots are easy to aggregate when prepared by a solution method is overcome so as to adjust the optical absorption characteristics of doped titanium dioxide films.

A film deposition method for a multilayer for a EUV mask blank by which a defect caused by the mixing of a particle in the layer during film formation can be prevented and an ion beam sputtering apparatus suitable for the method are presented. A film deposition method for forming a multilayer for a reflective-type mask blank for EUV lithography on a film deposition substrate by using an ion beam sputtering method, the film deposition method being characterized in that a sputtering target and a film deposition substrate are disposed at opposed positions with a predetermined space, and ion beams are injected to the sputtering target from an ion source which is disposed at a position out of the region where particles move linearly from the film deposition substrate toward the sputtering target.

Disclosed herein is a direct ion beam deposition method through ion beam sputtering. The method comprises the steps of: a) providing a workpiece on which a certain material is to be deposited with a certain desired thickness; b) providing a deposit material having a certain area from which the deposit material is discharged into a certain working gas atmosphere; c) transforming the working gas atmosphere into a plasma atmosphere by bombarding electrons widely to the working gas atmosphere; d) emitting a surface material by means of a sputter from the deposit material exposed in the plasma atmosphere; e) exposing the emitted deposit material to an ionization environment; f) and providing energy to the deposit material by applying an electric potential to the step e) to thereby be radiated on a corresponding face of the workpiece. A direct ion beam deposition system is also disclosed.

The invention discloses a method for manufacturing a surface enhancement Raman scatting (SERS) substrate having ultra high performance. The method comprises the steps: firstly, selecting a cicada wing, a butterfly wing, a scarlet macaw feather or other biological micro structures as a basal plate, and simply cleaning, drying and shaping the biological micro structure basal plate; and then plating gold, silver or other precious metals on the biological micro structure basal plate by magnetron sputtering or ion beam sputtering or other precise film plating methods to produce the SERS substrate. The gap size of a micro-nano structure is precisely controlled by controlling the thickness of the plating film, and the micro-nano gap size can be controlled to be less than 10 nm. The manufactured SERS substrate has the outstanding advantages of large area, low cost, uniformity, environmental protection, ultra sensitivity, precisely controllable gap and the like. The environmental protection material is selected as the basal plate, the quite simple, mature and low-cost method is used for manufacturing the high performance SERS substrate which meets the needs of practical applications and theoretical researches, so that a powerful tool and a solid foundation are provided for the theoretical researches and the practical applications of an SERS effect.

The invention belongs to the technical field of electronic mechanical technology and relates to a high-vacuum multifunctional ion beam sputtering and electron beam evaporation continuous film plating device. A vacuum film plating chamber of the device has a single chamber structure; a generator of an ion beam sputtering source and a generator of an electron beam evaporation plating source are arranged outside the vacuum film plating chamber; inlets of two generators conducting to the vacuum film plating chamber are correspondingly provided with an ion beam sputtering source baffle plate and an electron beam evaporation plating source baffle plate; constant tensile force can reverse a furling and stretching reel of a winding unit, follow a transition shaft and is fixed on a connecting and supporting device of the vacuum film plating chamber; and corresponding sensing, driving and controlling are arranged outside the vacuum film plating chamber. The device has a compact structure, various film plating and continuous film plating functions in the single vacuum chamber, can realize the auxiliary enhanced deposition of ion beams in the discontinuous or full film plating process, can improve the utilization rate of a sputtering target material by 60 to 100 percent, in particular a noble metal target material and a class of a target material which is difficult to machine, and can also obtain a coating-type composite film product with special functions through an inlaid-type target.

The invention discloses a large-area metal nano-structural substrate for surface-enhanced Raman and a preparation method thereof. The large-area metal nano-structural substrate for the surface-enhanced Raman consists of a nano-scale structural substrate consisting of different phase alloy materials and a nano-thickness metal material deposited on the substrate. The metal nano-structural substrateprovided by the invention has good Raman enhancing effect, and can be widely applied in the fields of physics, chemistry, materials science, biomedicine and the like. The preparation method for the large-area metal nano-structural substrate for the surface-enhanced Raman uses an alloy material consisting of different phases as a primary template, adopts a selective plasma etching method to etch the nano-structural substrate, and then adopts an ion beam sputtering method to deposit the nano-thickness metal material on the nano-structural substrate so as to form the surface-enhanced Raman substrate based on different phase metal materials; and the preparation method has mature industrial technology and low production cost, and can implement industrialized mass production.