Abstract:
PECVD apparatus for depositing material onto a moving substrate is provided comprising a process chamber, a precursor gas inlet to the process chamber, a pumped outlet, and a plasma source disposed within the process chamber. The plasma source produces one or more negative glow regions and one or more positive columns. At least one positive column is disposed toward the substrate. The plasma source and precursor gas inlet are disposed relative to each other and the substrate such that the precursor gas is injected into the positive column adjacent the substrate. Apparatus is provided to channel the precursor gas into the positive column away from the negative glow region.
Abstract:
A dual magnetron sputtering power supply for use with a magnetron sputtering apparatus having at least first and second sputtering cathodes for operation in the dual magnetron sputtering mode, there being a means for supplying a flow of reactive gas to each of said first (1) and second (4) cathodes via first (12) and second (14) flow control valves each associated with a respective one of said first and second cathodes and each adapted to control a flow of reactive gas to the respectively associated cathode, the power supply having, for each of said first and second cathodes a means for deriving a feed-back signal relating to the voltage prevailing at that cathode, a control circuit for controlling the flow of reactive gas to the respectively associated cathode by controlling the respective flow control valve and adapted to adjust the respective flow control valve to obtain a voltage feedback signal from the respective cathode corresponding to a set point value set for that cathode. Also claimed is a magnetron sputtering apparatus in combination with such a power supply.
Abstract:
In a reactive sputtering apparatus, an inert-gas supplying hole is provided in a movable target unit whose one end is open and whose conductance is controlled, and a reactive gas containing at least fluorine or oxygen can be supplied to a space between the target and a substrate. The apparatus is constructed so as to emit the reactive gas toward the substrate. A reactive-gas emitting location is in the space between the target and the substrate such that a concentration of the reactive gas on the substrate surface can be maintained at a higher level. When the target is moved, a reactive-gas emitting port is moved or the reactive-gas emitting location is changed. The concentration of the reactive gas on the substrate surface can be effectively kept constant, and a high-quality optical thin film can be formed.
Abstract:
A method for producing an optical element (2), in particular for a projection exposure system (400), according to which a protective layer (11) consisting of a protective material is applied to a surface of a main body (7) until a protective layer thickness is obtained. The main body (7) has a substrate (17) and a reflective layer (18) applied to the substrate (17). The protective layer (11) is at least substantially defect-free.
Abstract:
A sputtering method includes one or more sputtering processes. Each sputtering process includes in a first pre-sputtering phase, sputtering a target material on a baffle plate configured to shield a substrate; in a second pre-sputtering phase, sputtering a target material compound on the baffle plate; and in a main sputtering phase, sputtering the target material compound on the substrate. The first pre-sputtering phase is used to adjust a sputtering voltage for the main sputtering phase.
Abstract:
The present invention provides a means capable of determining the surface state of the target to execute accurate and quick cleaning of necessary part. The means includes: a magnet unit capable of forming a magnetic field on the surface of a target; a rotary system capable of driving the magnet unit to change the magnetic field pattern; and an ammeter configured to measure target current when the magnetic field is formed by the magnet unit and discharge voltage is applied to a target electrode to which the target is attached. The position of the magnet unit is variously changed by the rotary system, and the target current is measured at each position and compared with a reference value. It is then determined whether cleaning is necessary at each position, so that cleaning can be performed only for necessary part.
Abstract:
Reactive sputtering in which, by ion bombardment, material is ejected from the surface of a target and transitions to the gas phase. Negative voltage pulses are applied to the target to establish electric current having a current density greater than 0.5 A/cm2 at the target surface, such that the material transitioning to the gas phase is ionized. Reactive gas flow is established and reacts with the material of the target surface. Voltage pulse duration is such that, during the pulse, the target surface where the current flows is at least partly covered most of the time with a compound composed of reactive gas and target material and, consequently, the target surface is in a first intermediate state, and this covering is smaller at the end of the voltage pulse than at the start and, consequently, the target surface is in a second intermediate state at the end of the voltage pulse.
Abstract translation:反应溅射,其中通过离子轰击,材料从靶的表面喷射并转变到气相。 向目标施加负电压脉冲,以在目标表面建立电流密度大于0.5A / cm 2的电流,使得转移到气相的材料被电离。 建立反应性气体流动并与目标表面的材料反应。 电压脉冲持续时间使得在脉冲期间,电流流动的目标表面至少部分地被由反应性气体和靶材料组成的化合物大部分地覆盖,因此目标表面处于第一中间状态 并且该覆盖在电压脉冲结束时比在开始时更小,因此,目标表面在电压脉冲结束时处于第二中间状态。
Abstract:
The present invention provides a means capable of determining the surface state of the target to execute accurate and quick cleaning of necessary part. The means includes: a magnet unit capable of forming a magnetic field on the surface of a target; a rotary system capable of driving the magnet unit of change the magnetic field pattern; and an ammeter configured to measure target current when the magnetic field is formed by the magnet unit and discharge voltage is applied to a target electrode to which the target is attached. The position of the magnet unit is variously changed by the rotary system, and the target current is measured at each position and compared with a reference value. It is then determined whether cleaning is necessary at each position, so that cleaning can be performed only for necessary part.
Abstract:
The present invention provides a mask alignment mechanism which reduces the occurrence of particles and which aligns a mask with high accuracy, and a vacuum processing apparatus including such a mask alignment mechanism. A mask alignment mechanism according to one embodiment of the present invention includes a substrate holder which is movable up and down when a substrate is transferred and on which four taper pins are formed, and a mask in which grooves are formed. The taper pins can be inserted into the grooves, respectively. The taper pins include a pair of long taper pins and a pair of short taper pins. The taper pins in each pair are disposed to face each other across the substrate. Tapered surfaces formed in the long taper pins and tapered surfaces formed in the short taper pins are located at different heights.