Abstract:
PROBLEM TO BE SOLVED: To reduce distortion of an image due to temperature gradient of a substrate and an immersion liquid in a liquid immersion projection exposure apparatus. SOLUTION: In the liquid immersion lithographic apparatus including a temperature control unit for adjusting temperatures of a member in a final stage of the projection exposure apparatus PL, a substrate, and the immersion liquid to a common target temperature T4, the temperature gradient is reduced by adjusting total temperatures of these components. By doing so, matching properties of image formation and total performance are improved. Means to be used includes control of a flow rate and temperature of the immersion liquid by a feedback circuit. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for accurately aligning and/or leveling a substrate in an immersion lithography apparatus. SOLUTION: A map of the surface of a substrate is generated at a measurement station. The substrate is then moved to a place where a space between a projection lens and the substrate is filled with a liquid. The substrate is then aligned using, for example, a transmission image sensor and, using the previous mapping, the substrate can be accurately exposed. Thus the mapping does not take place in a liquid environment. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus for reducing residual liquid left on the surface of a substrate, after exposure by a projection system. SOLUTION: The lithographic apparatus whose localized area of the substrate surface under a projection system PL is immersed in a liquid. By having the height of a liquid supply system 310 above the surface of a substrate W, the height can be varied by using actuators 314. A control system uses feedforward control or feedback control with input of the surface height of the substrate W, to maintain the liquid supply system 310 at a predetermined height above the surface of the substrate W. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for accurately aligning and/or leveling a substrate in an immersion lithography apparatus. SOLUTION: A map of the surface of a substrate is formed at a measurement station. Then the substrate is moved to the place of which space between a projection lens and the substrate is filled with liquid. Subsequently, the substrate is aligned with, for example, a transmission image sensor to expose exactly according to the map formed previously. In this way, the mapping is never carried out under an environment of liquid. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic projection apparatus which minimizes a liquid loss from a supply system during the exposure of ends of a substrate, in liquid immersion exposure. SOLUTION: Liquid is limited by a middle plate 210 located between the liquid supply system and the substrate W. Spaces 222, 215 among the middle plate 210, a transmitted image sensor (TIS) 220, and the substrate W are also filled with the liquid 111. This procedure can be performed by two separated space liquid-supply systems via holes 230, 240, or can be performed by the same space liquid-supply system via the holes 230, 240. Therefore, both the space 215 between the substrate W and the middle plate 210, and the space 225 between the transmitted image sensor 220 and the middle plate 210 are filled with the liquid, so that both the substrate W and the transmitted image sensor can be illuminated under the same condition. A part 200 provides one or a plurality of support surfaces with the middle plate 210 which can be held at a predetermined position by a vacuum source. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus with which microprocessing is conducted without the need for an expensive equipment or material. SOLUTION: The lithographic apparatus has a first base plate table 31 arranged to hold the base plate, a second base plate table 32 arranged to hold the base plate, an imprint template holder 41 arranged to hold the imprint template 40 and an imprintable medium dispenser 36. The first base plate table is movable between a first position located at the imprintable medium dispenser or its neighborhood and a second position located at the imprint template holder or its neighborhood. The second base plate table is movable between the position of the first base plate table and that of the second base plate table in a way that the first and the second base plate tables exchange their positions. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic device with which various sizes of substrates including nonstandard substrates can be processed without making a major change for the lithographic device which is so designed as to hold and process specific sizes and forms of substrates. SOLUTION: The lithographic device comprises: a substrate table which is so constituted as to hold a first type of first substrate, wherein the first substrate has a polishing surface; and a projection system which is so constituted as to project a radiation beam, provided with a pattern, to a target part of the substrate. The polishing surface supports a second type of second substrate, and the projection system is so constituted as to project the radiation beam, provided with the pattern, to the second substrate. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus intended to reduce liquid which remains on the surface of a substrate after exposure by a projection system. SOLUTION: In the lithographic apparatus, a local region on the surface of the substrate under a projection system PL is immersed in a liquid. The height of a liquid feed system 310 above the surface of a substrate W can be varied using an actuator 314. In a control system, the liquid feed system 310 is maintained at a predetermined height above the surface of the substrate W, using feedforward control or feedback control by inputting the height of the surface of the substrate W. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography projector in which a space between a substrate and a projection system is filled with liquid while minimizing the quantity of the liquid required to be accelerated during a stage operation. SOLUTION: In the lithography projector, the space between the final element of the projection system and the substrate table of the lithography projector is surrounded by a sealing member. A gas seal is formed between the sealing member and the plane of the substrate and the liquid is confined in that space. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
A method for patterning a polished silicon surface is disclosed, the method comprising steps leading to an organic monolayer on at least a part of the silicon surface, the monolayer being functionalised in specific desired locations. The method can be used to produce a device comprising one or more FET structures, the gate of the FET being formed by the functionalised organic monolayer. The functionalised monolayer preferably contains oligosaccharides or oligopeptides which are capable of interacting with biological substance, such that the device acts as a bio-sensor.