摘要:
It is an object of the present invention to provide a method of making a magnetic disk having a uniform textured structure with micro-waviness of fabrication depth of less than 20 nm, preferably less than 10 nm, and a local depth deviation of less than 5%, in which texture patterns are characterized by the fact that lateral surfaces of the structure are sloped or curved. The object has been achieved in a method for making a magnetic disk, having micro-waviness on a fabrication surface of a substrate for reducing dynamic friction and controlling head float, by rotating and irradiating the fabrication surface with a high energy beam from a beam surface at an inclined angle to the substrate surface. The surface is irradiated through a shielding mask having a specific pattern, so as to produce a transcription pattern on the substrate surface to produce a textured structure with micro-waviness having sloped or curved side surfaces.
摘要:
A magnetic recording disk having on its surface a texture structure of fine surface irregularities with reduced variations, which is suitable for high-density magnetic recording, and a method of manufacturing such a magnetic recording disk are provided. A magnetic recording disk has a substrate 11, 12 (16) coated on a surface thereof with a magnetic layer 13, a carbon layer 14, and a lubricating film 15. The substrate has on a surface thereof a texture structure of fine surface irregularities for reducing friction when the substrate is brought into contact with a head and controlling an amount of lift of the head. The fine surface irregularities have a height of 20 nm or less and are formed from a pattern shape or profile of a shield with a high-speed atomic beam emitted from a high-speed atomic beam source.
摘要:
A magnetic recording disk having on its surface a texture structure of fine surface irregularities with reduced variations, which is suitable for high-density magnetic recording, and a method of manufacturing such a magnetic recording disk are provided. The magnetic recording disk has a substrate 11, 12 (16) coated on a surface thereof with a magnetic layer 13, a carbon layer 14, and a lubricating film 15. The substrate has on a surface thereof a texture structure of fine surface irregularities for reducing friction when the substrate is brought into contact with a head and controlling an amount of lift of the head. The fine surface irregularities have a height of 20 nm or less and are formed from a pattern shape or profile of a shield with a high-speed atomic beam emitted from a high-speed atomic beam source.
摘要:
It is an object of the present invention to provide a method of making a magnetic disk having a uniform textured structure with micro-waviness of fabrication depth of less than 20 nm, preferably less than 10 nm, and a local depth deviation of less than 5%, in which texture patterns are characterized by the fact that lateral surfaces of the structure are sloped or curved. The object has been achieved in a method for making a magnetic disk having micro-waviness on a fabrication surface of a substrate for reducing dynamic friction and controlling head float, by rotating and irradiating the fabrication surface with a high energy beam from a beam source at an inclined angle to the substrate surface, through a shielding mask having a specific pattern, so as to process a transcription pattern on the substrate surface to produce a textured structure with micro-waviness having sloped or curved side surfaces.
摘要:
An object of the present invention is to provide a beam source capable of efficiently generating a high-density energy beam having good directivity and a relatively large beam diameter. The beam source of the present invention comprises a discharge tube; a gas inlet for introducing gas into the discharge tube; three electrodes mounted in the discharge tube downstream from the gas inlet, wherein the electrode on the upstream end has a plurality of openings through which the gas can pass, the middle electrode is a mesh-shaped electrode, and the electrode on the downstream end is a beam-emitting electrode having a plurality of beam-emitting holes and is disposed in a plane parallel to the middle electrode; plasma-generating means disposed between the two upstream electrodes on the outside of the discharge tube for transforming gas introduced into the discharge tube into plasma; and voltage-applying means for accelerating the beam between the two downstream electrodes and emitting the accelerated beam from the downstream beam-emitting electrode.
摘要:
The object of the present invention IS to provide an optical imprinting apparatus and method for producing a two-dimensional pattern, having line widths less than the wavelength of an exposure light. The evarnescent (proximity) field effect is adopted to realize the apparatus and method. An optical imprinting apparatus comprises: a container in which light is enclosed therein; an exposure-mask having a proximity field exposure pattern firmly fixed to a section of said container for exposing said exposure pattern on a photo-sensitive material through an evanescent field by said light enclosed therein; and a light source for supplying said light in said container.
摘要:
An optical imprinting apparatus, and a method for producing a two-dimensional pattern, have line widths less than the wavelength of an exposure light. The evanescent (proximity) field effect is adopted to realize the apparatus and method. An optical imprinting apparatus comprises a container in which light is enclosed, an exposure-mask having a proximity field exposure pattern firmly fixed to a section of the container for exposing the exposure pattern on a photo-sensitive material through an evanescent field by the light enclosed therein; and a light source for supplying the light in the container.
摘要:
The present invention provides an electron beam apparatus for irradiating a sample with primary electron beams to detect secondary electron beams generated from a surface of the sample by the irradiation for evaluating the sample surface. In the electron beam apparatus, an electron gun has a cathode for emitting primary electron beams. The cathode includes a plurality of emitters for emitting primary electron beams, arranged apart from one another on a circle centered at an optical axis of a primary electro-optical system. The plurality of emitters are arranged such that when the plurality of emitters are projected onto a straight line parallel with a direction in which the primary electron beams are scanned, resulting points on the straight line are spaced at equal intervals.
摘要:
A system for further enhancing speed, i.e. improving throughput in a SEM-type inspection apparatus is provided. An inspection apparatus for inspecting a surface of a substrate produces a crossover from electrons emitted from an electron beam source 25•1, then forms an image under a desired magnification in the direction of a sample W to produce a crossover. When the crossover is passed, electrons as noises are removed from the crossover with an aperture, an adjustment is made so that the crossover becomes a parallel electron beam to irradiate the substrate in a desired sectional form. The electron beam is produced such that the unevenness of illuminance is 10% or less. Electrons emitted from the sample W are detected by a detector 25•11.
摘要:
An electron beam apparatus comprises a TDI sensor 64 and a feed-through device 50. The feed-through device has a socket contact 54 for interconnecting a pin 52 attached to a flanged 51 for separating different environments and the other pin 53 making a pair with the pin 52, in which the pin 52, the other pin 53 and the socket contact 54 together construct a connecting block, and the socket contact 54 has an elastic member 61. Accordingly, even if a large number of connecting blocks are provided, the connecting force may be kept to such a low level as to prevent the breakage in the sensor. The pin 53 is connected with the TDI sensor 64, in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system to as small as possible so that a maximal acceptable distortion within the field of view may be set larger. Further, the number of integration stage may be determined such that the data rate of the TDI sensor would not be reduced but the number of pins would not be increased as much as possible. Preferably, the number of line count may be almost equal to the number of integration stages.