摘要:
An energy beam is irradiated to a workpiece (12) through a beam transmission hole (14a) defined in a mask (14). At that time, a relative position between an energy beam source (13) and the mask or the mask and the workpiece is changed, so that machining depth of the workpiece is varied depending on machining portions of the workpiece, which corresponds to amounts of irradiation of the energy beam. With this method, a machined product having locally different depths can be very easily made and further the product can be machined to desired depths with a high accuracy by a single machining operation in a short time.
摘要:
An energy beam is irradiated to a workpiece (12) through a beam transmission hole (14a) defined in a mask (14). At that time, a relative position between an energy beam source (13) and the mask or the mask and the workpiece is changed, so that machining depth of the workpiece is varied depending on machining portions of the workpiece, which corresponds to amounts of irradiation of the energy beam. With this method, a machined product having locally different depths can be very easily made and further the product can be machined to desired depths with a high accuracy by a single machining operation in a short time.
摘要:
An ultra-fine microfabrication method using an energy beam is based on the use of shielding provided by nanometer or micronmeter sized micro-particles to produce a variety of three-dimensional fine-structures which have not been possible to produce by the traditional photolithographic technique which is basically designed to produce two-dimensional structures. When the basic technique of radiation of energy beam and shielding is combined with a shield positioning technique using magnetic, electrical field or laser beam, with or without the additional chemical effects provided by reactive gas particles beams or solutions, fine-structures of very high aspect ratios can be produced with precision. Applications of devices having the fine-structure produced by the method include wavelength shifting in optical communications, quantum effect devices and intensive laser devices.
摘要:
A method and apparatus are presented for producing a three-dimensional ultra-fine micro-fabricated structures of the order of µm and less for use in advanced optical communication systems and quantum effect devices. The basic components are an energy beam source, a mask member and a specimen stage. Because the mask member is an independent component, various combinations of relative movements of the mask member with respect to the beam axis and/or workpiece can be made with high precision to produce curved or slanted surfaces on a workpiece, thereby producing a multiple lines or array of convex or concave micro-lenses. Other examples of fine-structures include deposition of thin films on a multiple line pattern or in an array pattern. Because of the flexibility of fabrication method and material of fabrication, labyrinth seals having curved surface with grooved structure can be used as friction reduction means for bearing components. The fine groove dimensions of the order of nm is possible. Energy beams can be any of fast atomic beams, ion beams, electron beam, laser beams, radiation beams, X-ray beams and radical particle beams. Parallel beams are often used, but when a focused beam is used, a technique of reduced projection imaging can be utilized to produce a fine-structure of the order of nm.
摘要:
An energy beam source presented is for use in micro-fabrication tasks, such as fabrication of specific patterns, in-situ bonding, repair, connection and disconnection of electrical paths, applicable to semiconductor devices and other micro-sized circuits in integrated circuits. The beam source is made compact so that several sources can be located inside a vacuum vessel and in conjunction with micro-manipulators or micro-movement stages operated under light or electron microscope. The beam source is provided with at least three electrodes, and by applying a selected voltage, i.e., high frequency voltage, direct current voltage and ground voltage, on each the three electrodes in association with film-forming substance(s), virtually any type of deposit can be formed in any location of the workpiece. Different types of particle beam, such as positive and negative ion beams, highspeed neutral atomic beam, radical particle beam, electron beam can be produced from the beam source by judicious choice of operating parameters and the film-forming material which may be a process gas or an applied coating. By using the beam source and the method of deposit forming presented, virtually any type of fabrication tasks can be carried out on any surface and any location of a workpiece in a three-dimensional space. The availability of the compact energy beam source is expected to open a new path to such leading-edge industries as repair of semiconductor devices, circuit alteration/repair and micro-machining of ultrasmall components for various fields.
摘要:
An ultra-fine microfabrication method using an energy beam is based on the use of shielding provided by nanometer or micronmeter sized micro-particles to produce a variety of three-dimensional fine-structures which have not been possible to produce by the traditional photolithographic technique which is basically designed to produce two-dimensional structures. When the basic technique of radiation of energy beam and shielding is combined with a shield positioning technique using magnetic, electrical field or laser beam, with or without the additional chemical effects provided by reactive gas particles beams or solutions, fine-structures of very high aspect ratios can be produced with precision. Applications of devices having the fine-structure produced by the method include wavelength shifting in optical communications, quantum effect devices and intensive laser devices.
摘要:
A micro-working apparatus performs fabrication and assembly tasks for micron/nanometer sized objects while observing the progress of work in real-time under at least a pair of optical or electron microscopes to provide simultaneous views from at least two directions, thus offering a spatial visual information regarding the working space which is particularly critical in micro-working. Micro-working is further facilitated by the use of a micro-pallet device specially designed for use in the apparatus, but also offering other application possibilities. Rotational and parallel translation movements provided by the micro-pallet combined with the micro-working capability of the apparatus are utilized to demonstrate the production of micron-sized parts for use in advanced applications of optical and electronic devices.