摘要:
A charged particle beam lithography system includes: a charged particle beam source which generates a charged particle beam and irradiates a substrate therewith; an aperture in which has been formed a pattern of a shape corresponding to an arbitrary pattern to be drawn; an illuminator which adjusts the diameter of the charged particle beam and illuminates the aperture with the charged particle beam; a first deflector which deflects the charged particle beam by an electrical field to cause the charged particle beam to be incident on an arbitrary pattern, allowing the charged particle beam to pass through the aperture and be reflected back along the optical axis; a first demagnification optical projection system which demagnifies the aperture image of the charged particle beam which has passed through the aperture with the use of an electrical field or electromagnetic field; a second demagnification optical projection system which demagnifies the aperture image of the charged particle beam which has been demagnified by the first demagnification projection optical system, with the use of an electrical field or electromagnetic field to form an image on the substrate; and a beam diameter adjuster which adjusts the illuminator in such a manner that the beam diameter at crossovers of the charged particle beam, formed between the aperture and the first demagnification optical projection system and within the second demagnification optical projection system, is greater than the size of the pattern.
摘要:
A method for creating charged-particle-beam exposure data containing a description of an exposure sequence of character patterns to perform exposure of a charged-particle-beam according to a character projection technique, comprising selecting first or second values as a parameter to transfer one character pattern and then transferring a subsequent character pattern, the first value regarding performance of a shaping deflector which deflects the charged particle beam so that the charged particle beam is applied to an arbitrarily character aperture formed in a CP aperture mask and a character beam having the shape of the character aperture is thereby created, and the second value regarding performance of an objective deflector which deflects the character beam so that the character beam is applied to an arbitrarily position of the deflection region of the specimen, and determining the exposure sequence of the character patterns in the deflection region in accordance with the selected parameter.
摘要:
In a tripod-type constant velocity joint having an inner joint member, an outer joint member, and three roller units, the radius R1, outer width W1, and inner width W2 of the outer periphery cylindrical surface of each roller unit, and the radius R3 of the center hole of each roller unit are determined to satisfy the following two inequalities: 0.5Rtc(1/cos0.3Θ−1)+(R1−R3)μ
摘要:
An iron-based heat-generating material excellent in oxidation resistance at an elevated temperature which comprises an iron-based alloy capable of generating heat by passing electricity therethrough and a coating of aluminum and oxygen formed on the surface of the alloy, the amount of the oxygen in the coating is less than the stoichiometric amount of oxygen in Al.sub.2 O.sub.3. The material can be prepared by vacuum evaporation of Al onto the surface of the iron-based alloy wherein an oxygen partial pressure in a vacuum gaseous atmosphere for the vacuum evaporation is adjusted so that there is formed on the surface of the alloy a coating consisting of aluminum and oxygen, the amount of the oxygen in the coating being less than the stoichiometric amount of oxygen in Al.sub.2 O.sub.3. When the material is heated in ambient or oxidizing atmosphere, an outermost layer of the coating is rapidly converted to Al.sub.2 O.sub.3.
摘要:
A finite state automaton (FSA) text search apparatus converts each of successively received binary code numbers, representing successive characters of a text to be searched, into two portions. Two portions are extracted from a state number which is currently being read out from a first table memory, with one portion being combined with one of the input character portions and the combination used to select one of a set of 1st displacement numbers from a second table memory, while a second portion of the current state number and the other portion of the input character number similarly select one of a set of 2nd displacement numbers from a third table memory, and the entire current state number selects one of a set of base numbers from a fourth table memory. The selected 1st and 2nd displacement numbers are combined with the selected base number, and the result used to select the next state number from the first table memory. The overall memory capacity required is minimized, while achieving a high search speed.
摘要:
Provided is a film forming apparatus for forming a film on a substrate maintained within a film forming container by supplying a raw material gas to the substrate. The film forming container includes a substrate maintaining unit, a supply mechanism configured to include a supply pipe with supply holes formed thereon to supply a raw material gas to the interior of the film forming container through the supply holes, an exhaust mechanism configured to include an exhaust pipe with exhaust holes formed thereon to exhaust gas from the interior of the film forming container through the exhaust holes, and a controller configured to control the substrate maintaining unit, the supply mechanism, and the exhaust mechanism. The supply holes and the exhaust holes are formed to face each other with the substrate maintained in the substrate maintaining unit interposed therebetween.
摘要:
A speed change gear includes: an internal gear member; an eccentric member; an oscillating member; a pair of first and second rotating members; and a pin that is supported at both ends by insertion holes of the first and second rotating members. The insertion hole and the insertion hole have the same diameter. The outside diameter of the other side end portion of the pin is smaller than the outside diameter of one side end portion of the pin such that the one side end portion is press-fitted in the corresponding insertion hole and the other side end portion is supported by the corresponding insertion hole.
摘要:
A constant velocity universal joint is provided, having a hollow outer joint member, an inner joint member, an outer roller including a cylindrical surface, an inner roller including a concave sphere, and plural leg shafts each including a convex sphere formed in a tip portion and engaging with the concave sphere, where the cylindrical surface of the outer roller satisfies the following: W1>PCR(1−cos θ)/2+μ3R3+μ2R1 W2>3PCR(1−cos θ)/2−μ3R3+μ2R1, where W1 indicates a length of the cylindrical surface from a center of the leg shaft and an intersection of the cylindrical surface and an upper side taper portion of the outer roller, W2 indicates a length of the cylindrical surface from the center of the leg shaft and an intersection of the cylindrical surface and a lower side taper portion of the outer roller, and θ indicates a maximum joint angle.
摘要:
A housing is provided with a partition wall portion that partitions an inner space of the housing into an electric motor accommodating space and a speed reducer accommodating space. The partition wall portion fixes a gear that constitutes a speed reducer. In addition, the partition wall portion has a housing boss portion, and an inner stator is fixed to the housing boss portion. Thus, heat generated by the inner stator is dissipated to the outside through the housing boss portion and the partition wall portion.
摘要:
The present invention provides mobile terminals with various types of services such as electronic commerce service, music delivery service, and position information service. User applications required for the electronic commerce service, music delivery service, and position information service are respectively configured as service objects each having a server facility, and further a local gateway is provided, whereby various types of services can be used through a browser.