摘要:
An optical filter includes a light-shielding conductive layer provided with a plurality of apertures on a substrate surface that selectively transmits light of a first wavelength, and a dielectric layer in contact with the conductive layer. A size of the apertures is a size equal to or less than the first wavelength, and a ratio of a surface area of the conductive layer to a surface area of the substrate surface is within a range of equal to or greater than 36% and equal to or less than 74%. A transmissivity of the first wavelength is increased by surface plasmons induced in the apertures by light falling on the conductive layer.
摘要:
An exposure mask in which exposure of an exposure object is carried out on the basis of near field light leaking from a plurality of openings provided in a light blocking member in a mutually adjoining relation, in which the spacing between adjacent openings is not greater than the wavelength of light used for the exposure, and an end portion of the opening at the exposure object side has a structure effective to reduce scatter of a surface plasmon polariton wave going around to the exposure object side of the light blocking member.
摘要:
A method of manufacturing a device includes the steps of (i) providing a near-field photomask including a light shield film for constituting a light shield portion and openings formed in the light shield film, wherein the openings include two or more parallel first slit openings lengthening in a first direction and a second slit opening lengthening in a second direction that is perpendicular to the first directions, wherein the second slit opening interlinks the first slit openings, (ii) forming a photoresist layer on a substrate, (iii) exposing the photoresist layer to near-field light through the near-field photomask using polarized exposure light having an electrical field component parallel to the first direction, to form a latent image on the photoresist only in discrete regions at which the second slit opening crosses the light shield portion, (iv) forming a pattern of the photoresist layer based on the latent image, and (v) etching a surface of the substrate based on the pattern.
摘要:
A method of manufacturing a device includes the steps of (i) providing a near-field photomask including a light shield film for constituting a light shield portion and openings formed in the light shield film, wherein the openings include two or more parallel first slit openings lengthening in a first direction and a second slit opening lengthening in a second direction that is perpendicular to the first directions, wherein the second slit opening interlinks the first slit openings, (ii) forming a photoresist layer on a substrate, (iii) exposing the photoresist layer to near-field light through the near-field photomask using polarized exposure light having an electrical field component parallel to the first direction, to form a latent image on the photoresist only in discrete regions at which the second slit opening crosses the light shield portion, (iii) forming a pattern of the photoresist layer based on the latent image, and (iv) etching a surface of the substrate based on the pattern.
摘要:
A near-field exposure mask includes a mask base material and a light blocking layer formed on the base material, the light blocking layer includes a fine metal structure or fine opening formed in the light blocking layer. The size of the metal structure or the size of the opening is not more than a wavelength of light for exposure, and at least one of a cross section of the fine metal structure in a direction perpendicular to a surface of the mask, and a cross section of the fine opening in a direction perpendicular to the mask surface has an asymmetrical sectional shape with respect to an arbitrary axis perpendicular to the mask surface.
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:
A probe for detecting light or irradiating light comprises a cantilever supported at an end thereof by a substrate, a hollow tip formed at a free end of the cantilever, a microaperture formed at the end of the tip, and a hollow waveguide formed inside the cantilever.A method for producing a probe for light detection or light irradiation which comprises the steps of working a substrate to form a groove therein, forming a flat plate-shaped cover portion on the groove to form a hollow waveguide having an opening in a part thereof, forming a hollow tip having a microaperture on the opening, and removing a part of the substrate by etching, to form a cantilever.
摘要:
An apparatus for forming a pattern by using a photomask including both a minute aperture where a main component of a transmitted light is an evanescent light and an aperture where a main component of a transmitted light is a propagating light. The apparatus includes a sample stand for placing a substrate to be processed on which a photoresist with a film thickness equal to or smaller than a width of the minute aperture is formed, a stage for placing the photomask, a light source for generating light for exposure, and a device for controlling a distance between the substrate to be processed and the photomask.
摘要:
An exposure apparatus includes a light-emitting portion arranged so as to be opposite to a photosensitive member at a position for exposure. A part of the light-emitting portion is smaller in width than a wavelength of light from the light-emitting portion.