摘要:
There is provided an exposure method including the steps for arranging an object to be exposed and a transparent plate that includes a thin film, within such a range that near field light from the thin film may operate on the object, the thin film having a light transmittance that changes according to an intensity of light of incidence, and exposing the object with the near field light generated by projecting a pattern on a mask onto the thin film of the transparent plate.
摘要:
Disclosed is an exposure apparatus, an exposure method and an exposure mask, for improved optical lithography. Specifically, in accordance with one preferred form of the invention, the exposure apparatus is arranged to be used with an exposure mask having an elastically deformable holding member and a light blocking film provided on the holding member and being formed with an opening pattern, wherein for exposure the exposure mask is flexed to be brought into contact with an object to be exposed. The exposure apparatus includes a distance detecting system for detecting a distance between the exposure mask before being flexed and the object to be exposed, and a distance controlling system for controlling the distance between the exposure mask before being flexed and the object to be exposed, on the basis of a signal from the distance detecting system.
摘要:
An exposure method for exposing a workpiece on the basis of near-field light escaping from an opening of a mask. The method includes projecting non-polarized exposure light having a predetermined wavelength, emitted from a laser light source and passed through a depolarization device and a diffusion device, onto an exposure mask having a light blocking film formed with a plurality of rectangular openings therein, the openings having (i) a width in a widthwise direction not greater than one-third of the wavelength of the exposure light and (ii) two or more lengthwise directions extending along the mask surface, so that near-field light escaping from the openings performs exposure of a pattern on the basis of the openings.
摘要:
Disclosed herein is a light modulating apparatus comprising first and second two periodic structures each having a period smaller than the wavelength of light emitted from a light source, and a moving means for relatively moving the two periodic structures, wherein the surface of the first periodic structure is brought near to the surface of the second periodic structure to a space not longer than the wavelength to arrange them in a state opposed to each other, the light incident on the first periodic structure is converted into near-field light by the first periodic structure, the converted near-field light is transmitted through the second periodic structure and converted into propagation light by scattering the near-field light on the back surface of the second periodic structure, and the intensity of the propagation light is modulated by relatively moving the two periodic structures by the moving means.
摘要:
A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and transmitted through or reflected from the openings. The plurality of openings are arranged periodically in a first direction in the metal film, and both a size of each of the plurality of openings and an interval thereof in the first direction are equal to or less than the wavelength of the light.
摘要:
Disclosed is a method and apparatus for detecting a relative positional deviation between first and second objects. In one preferred form of the invention, the detecting method includes the steps of (i) providing the first and second objects with diffraction gratings, respectively, each having a grating pitch larger than a wavelength of a light source used, (ii) placing the first and second objects so that a dielectric material layer having a thickness smaller than the wavelength of the light source used is interposed between the first and second objects, and so that the diffraction gratings of the first and second objects are opposed to each other, (iii) projecting light from the light source onto the diffraction gratings of the first and second objects, and (iv) detecting the relative positional deviation between the first and second objects on the basis of diffraction light projected from the diffraction gratings to a space.
摘要:
Disclosed is a method and apparatus for detecting a relative positional deviation between first and second objects. In one preferred form of the invention, the detecting method includes the steps of (i) providing the first and second objects with diffraction gratings, respectively, each having a grating pitch larger than a wavelength of a light source used, (ii) placing the first and second objects so that a dielectric material layer having a thickness smaller than the wavelength of the light source used is interposed between the first and second objects, and so that the diffraction gratings of the first and second objects are opposed to each other, (iii) projecting light from the light source onto the diffraction gratings of the first and second objects, and (iv) detecting the relative positional deviation between the first and second objects on the basis of diffraction light projected from the diffraction gratings to a space.
摘要:
A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and transmitted through or reflected from the openings. The plurality of openings are arranged periodically in a first direction in the metal film, and both a size of each of the plurality of openings and an interval thereof in the first direction are equal to or less than the wavelength of the light.
摘要:
A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and transmitted through or reflected from the openings. The plurality of openings are arranged periodically in a first direction in the metal film, and both a size of each of the plurality of openings and an interval thereof in the first direction are equal to or less than the wavelength of the light.
摘要:
A method for exposing a workpiece on the basis of near-field light escaping from an exposure mask having a light blocking film with a plurality of rectangular openings. The method includes protecting non-polarized near-field exposure light from a light source through the openings of the exposure mask to perform exposure of a pattern on the workpiece. The widths of the rectangular openings are smaller than that at a cross-point between a first curve on a coordinate of widths of the openings versus a near-field light intensity for an incident-light electric-field direction perpendicular to a lengthwise direction of a small-opening pattern and a second curve on the same coordinate for an incident-light electric-field direction parallel to the lengthwise direction of the small-opening pattern.