摘要:
A plasma device for uniform processing of large-size wafers. The device comprises a processing container (4) that is a bottomed cylinder with an upper opening covered with a quartz plate (8), the cylinder including a processing stage (10) for holding a wafer (W); a microwave device (50) for supplying TE11-mode microwave; a cylindrical waveguide (52) including a waveguide space, connected with the microwave device (50) on one end, and extending toward the quartz plate (8); a radial waveguide box (54) including a waveguide space, connected with the other end of the waveguide (52), spreading radially outward in the shape of a flange, and falling toward the quartz board (8) to serve as a side wall; and a disk-like slot antenna (60) arranged along the quartz board (8) to cover a lower opening of the waveguide box (54). A circular polarization converter (56) can be provided to rotate microwave on the axis of the cylindrical waveguide (52) and send it to the waveguide box (54).
摘要:
The invention relates to a method for removing an area of a layer of a component consisting of metal or a metal compound. According to prior art, corrosion products of a component are removed in a first step by applying a molten mass or by heating in a voluminous powder bed. This requires high temperatures or a large amount of space. The inventive method for removing corrosion products of a component (1) is characterised in that a cleaning agent (10) is applied locally, which removes the corrosion products by means of a gaseous reaction product.
摘要:
A vacuum processing chamber (31) in a plasma processing unit (3A, 3B) is connected to a transfer chamber (2) and a wafer (W) is transferred from the transfer chamber (2) with the wafer aligned with a mount (4) in the vacuum processing chamber (31). The size and length of a waveguide (5) are the same for each plasma processing unit (3A, 3B) and a positional relation of the waveguide (5) with respect to transfer directions (M1, M2) of a transfer arm (61) is the same for each plasma processing unit (3A, 3B). Therefore, a positional relation of the waveguide (5) with respect to the wafer (W) placed on the mount (4) in a preset direction is the same for each plasma processing unit (3A, 3B).
摘要:
A method of manufacturing a high-quality metal foil/ceramics joining material (19) and a metal foil laminated ceramic substrate (20) which can prevent a damage to a ceramic material and enhance the productivity of the metal foil/ceramics joining material and the metal foil laminated ceramic substrate, wherein a ceramic material (13) is heated before a metal foil (11) and the ceramic material (13), both ion-etched, are pressure-joined to ensure an easy and positive subsequent pressure-joining and the ceramic material (13) can be prevented from being broken because the ceramic material (13) is heated while being placed on a holder (14) and is pressure-joined under a pressure of 1 kg/cm or lower.
摘要:
A method and system (100, 200) for laser ablating a target material (13, 350, 360) in an ambient atmosphere are disclosed. The method includes generating one or more laser pulses, each of the laser pulses having a pulse width of 1 picosecond (ps) or less and a pulse energy of 100 micro joules (µJ) or more. The laser pulses are directed towards the target material (13, 350, 360) such that the laser pulses interact with a gas to form a plasma (30). The plasma removes a portion of the target material by interaction of the plasma (30) with the target material (360).
摘要:
Mo/Si multilayers are removed from superpolished ZERODUR and fused silica substrates with a dry etching process that, under suitable processing conditions, produces negligible change in either the substrate surface figure or surface roughness. The two-step dry etching process removes a silicon dioxide overlayer with a fluorine-containing gas and then removes molybdenum and silicon multilayers with a chlorine-containing gas. Full recovery of the initial normal incidence extreme ultra-violet (EUV) reflectance response has been demonstrated on reprocessed substrates.
摘要:
A plasma treating device which can generate uniform plasma over a wide area and can perform plasma treatment on a substrate (wafer W) to be treated with high in-plane uniformity. A transmissive window (23) for transmitting microwaves is provided in the ceiling section of a vacuum vessel (2) provided with a plasma chamber (21) and a film forming chamber (22) and a waveguide (4) for supplying microwaves of 2.45 GHz in frequency to the vacuum vessel (2) in a TM mode is provided on the window (23). The waveguide (4) is composed of a rectangular waveguide (41), a cylindrical waveguide (42) which works as a TM mode converter (42), and a conical waveguide (43) and the exit side of the waveguide (43) is connected to the upper surface of the window (23). When the microwaves are transmitted into the vessel (2) in the TM mode and, at the same time, a magnetic field is formed in the vessel (2) and the exit-side inside diameter ØA of the waveguide (43) is adjusted to 130-160 mm, the density of plasma in the plasma chamber (1) becomes uniform and plasma treatment can be performed on a wafer W having a size of, for example, 8 inches with high in-plane uniformity.
摘要:
A method of manufacturing a high-quality metal foil/ceramics joining material (19) and a metal foil laminated ceramic substrate (20) which can prevent a damage to a ceramic material and enhance the productivity of the metal foil/ceramics joining material and the metal foil etched, are pressure-joined to ensure an easy and positive subsequent pressure-joining and the ceramic material (13) can be prevented from being broken because the ceramics material (13) is heated while being placed on a holder (14) and is pressure-joined under a pressure of 1 kg/mm 2 or lower.
摘要翻译:一种制造高品质金属箔/陶瓷接合材料(19)和金属箔层压陶瓷基板(20)的方法,其可以防止损坏陶瓷材料并提高金属箔/陶瓷接合材料的生产率和 金属箔被蚀刻,被压接以确保随后的接合容易且积极,并且可以防止陶瓷材料(13)因放置在保持器(14)上而加热陶瓷材料(13)而被破坏,并且 在1kg / mm 2以下的压力下进行压接。
摘要:
The present invention is an apparatus for distributing reactant gases across the substrate mounted in a reaction chamber. The apparatus is capable of being utilized in both vapor deposition and etching processes. The apparatus substantially compensates for the problem of non-uniformity of vapor deposition and etching at the edges of the wafers caused by gas depletion. A gas distribution plate having a plurality of apertures extending therethrough is attached to an interior surface of the reaction chamber. At least one vacuum sealed partition is disposed between a surface of the gas distribution plate and the interior surface of the chamber. The partition separates the space between the plate and reaction chamber into gas distribution zones. A gas inlet is connected to each gas distribution zone. Each gas inlet line has at least one mass flow controller which regulates the flow of gas to each gas distribution zone. The mass flow controllers are utilized to ensure a uniform rate of chemical vapor deposition or etching across the surface of the substrate.
摘要:
An end point controller (12) and an interface unit (17) therefor, for use in an anisotropic plasma etching process comprising a series of alternating etching and polymerization steps, the controller (12) having a monitor (13) for monitoring the intensity of a characteristic process parameter, typically an optical emission, and producing a signal indicative of said intensity, the unit (17) or controller (16) having a timer assembly determining the operation of the monitor (13) during each etching step, the assembly comprising at least two sequential timers (100)(105), the first timer (100) determining a time lag (tl) between the onset of the etching step and the operation of the second timer (105) which sets a time period (t2) within the etching step for monitoring the selected parameter.