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4948460 |
Method of producing head core slider for rigid magnetic disk drive, utilizing laser-induced etching
A method of producing a magnetic head core slider including integrally formed slider body and yoke portion. The slider body has two parallel air bearing portions, while the yoke portion has a track...
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4948941 |
Method of laser drilling a substrate
A method of laser drilling a substrate includes the steps of placing a sacrificial member over the substrate, and then laser drilling through the sacrificial member. This method produces a...
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4947463 |
Laser spraying process
A spraying material is fed to and melted in a high energy density zone formed by converging a laser beam therein with a converging lens or a mirror, and the molten spraying material is rendered...
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4945207 |
Assist gas control method
An assist gas control method is provided for a CNC laser machining device including a combination of a laser beam machine and a numerical control apparatus (CNC). The kind, mixing ratio, pressure,...
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4945205 |
Chromatographic strip having non-compressed edges
A device is disclosed for use in a chromatographic system wherein a component of a mixture is partitioned between a liquid phase and an immobile phase. The device comprises at least one strip of a...
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4942110 |
High resolution conductor patterning
A technique for generating high resolution resistor or conductor patterns on uneven surfaces by focusing a CO 2 laser beam to locally render insoluable suitable thick film resistor or conductor...
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4940508 |
Apparatus and method for forming die sites in a high density electrical interconnecting structure
The present invention is directed to a system for removing material from a structure. The system includes an excimer laser for removing material by ablative photodecomposition and means for...
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4937425 |
Method of making a polarizing parabolic dish antenna reflector
A method of fabricating a polarizing dish antenna reflector (10) wherein a light source (22) is employed to pyrolyze an organometallic compound (14) disposed on the antenna surface to form grid...
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4936008 |
Laser striping method for assembling TWT
An improved method for assembling a travelling wave tube (TWT) including the step of forming a heat stripe along the barrel of the TWT to reduce the diameter of the barrel and create an...
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4937424 |
Laser machining apparatus
A laser machining apparatus includes a laser resonator capable of producing a laser beam having a filled-in intensity distribution pattern and a condensing device for converting the beam into a...
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4931138 |
Method and apparatus for manufacturing optical card
The invention relates to a method of recording a data signal on an optical card having a photosensitive layer applied on a metal layer. A number of light beams are emitted from a number of light...
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4931134 |
Method of using laser routing to form a rigid/flex circuit board
A method of fabricating a multilayer circuit board having rigid and flexible sections using Z-axis laser routing. A rigid superstructure is provided for lamination to a flexible circuit substrate,...
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4924064 |
Method for trimming a planar capacitor
This invention concerns a method for trimming a planar capacitor. According to the method, a laser emission is focused to an electrode of a capacitor formed on a substrate transparent to laser...
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4915778 |
Method of fabricating an apparatus for measuring velocity of flow
In an apparatus for measuring the velocity of flow of fluids, and particularly of the intake air of internal combustion engines, having an electrically heatable resistance layer which is applied in...
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4916284 |
Method of making hemmed joints utilizing laser welding
Methods of laser welding zinc coated galvalized steel are disclosed. In a method that relates to forming hem joints for motor vehicle body components a sheet of steel is provided with a plurality...
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4909895 |
System and method for providing a conductive circuit pattern utilizing thermal oxidation
A system and method for improved conductive circuit patterning utilizing laser ablation is disclosed. In an embodiment, a substrate, which has an electroless conductive layer plated thereon, is...
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4904340 |
Laser-assisted liquid-phase etching of copper conductors
A process for laser-assisted liquid phase etching of copper conductors which includes the use of a solution of sulfuric acid and hydrogen peroxide in contact with an integrated circuit substrate...
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4900892 |
Method for working members composed of oxide material
A method for working an oxide material, and preferably a ceramic oxide material, with a laser emission of an excimer laser and without the creation of damage layers includes pulsing the laser...
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4900891 |
Laser ice removal system
A system to remove ice formed on a surface, such as an airplane wing. Heat generative laser beam is directed upon a snow or ice-covered surface, thereby vaporizing the ice and snow formed...
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4900581 |
Method for producing metal films
A method for producing full-surface or partial metal films on a substrate includes placing a coating on a substrate. The coating is irradiated sheetwise with a laser to form the metal films.
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4897150 |
Method of direct write desposition of a conductor on a semiconductor
An improved method of patterning a conductive interconnect on a semiconductor element is disclosed. A catalytic layer of, for example, amorphous silicon is deposited on a semiconductor element. The...
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4897153 |
Method of processing siloxane-polyimides for electronic packaging applications
A method of forming a multilayer metallization pattern using siloxane polyimide dielectric layers comprises forming the first siloxane polyimide layer, laser etching holes in the first layer,...
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4894511 |
Source of high flux energetic atoms
Method and apparatus for generating a nearly mono-energetic beam of atoms at velocities on the order of several km/sec (energies of 1-10 eV) and for achieving modification of the surface properties...
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4894509 |
Laser assisted heater bar for multiple lead attachment
A laser assisted miniature heater 10 includes an elongated hollow bar 12 having a high thermal conductivity and a supporting member 14 for conveying an optical fiber 16 which transmits laser...
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4894115 |
Laser beam scanning method for forming via holes in polymer materials
The surface of a polymer dielectric layer is scanned repeatedly with a high energy continuous wave laser in a pattern to create via holes of desired size, shape and depth. This is followed by a...
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4880959 |
Process for interconnecting thin-film electrical circuits
Thin-film electrical circuits are interconnected by a process comprising the steps of partially ablating the existing thin-film conductor at the connection point(s) by means of a pulsed laser and...
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4880496 |
Method and device for submicron precision pattern generation
A method and device for creating patterns on a wide variety of substrates. The dimensions are variable in a wide range, from sub-microscopic and upwards. The device can also be used for...
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4879448 |
Apparatus for laser welding and annealing
Laser welding and annealing is accomplished by using a single laser and a single automated fixture that secures a workpiece at the focal point of a laser beam for welding and removed from the focal...
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4877481 |
Patterning method by laser scribing
A laser scribing method is described. A laser beam is deprived of its tail which appears along a groove which is engraved by scribing. The scribing can be performed without forming protrusion along...
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4874596 |
Production of crystalline structures
An apparatus and method for reacting on material by means of intense radiation employed to change the physical and, in certain instances, the chemical characteristics of such material. In one form,...
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4871896 |
Process and device to enhance system performance accuracy in a laser writing process
An apparatus and method are disclosed for improving the recognition of reference data in a laser writing process, by storing the locations of chip topography situated along the scan raster in a...
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4865683 |
Method and apparatus for laser process control
A method and apparatus for controlling the energy of a laser beam on a workpiece includes a photodetector for generating an electrical signal which is proportional to the light reflected from the...
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4865686 |
Laser scribing method
A laser scribing system and method is described. In the system, a film formed on a substrate is irradiated with laser beam which is focused on a limited portion of the film in order to remove the...
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4863538 |
Method and apparatus for producing parts by selective sintering
A method and apparatus for selectively sintering a layer of powder to produce a part comprising a plurality of sintered layers. The apparatus includes a computer controlling a laser to direct the...
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4859828 |
Process and installation for producing workpieces
To cut out workpieces from a sheet iron plate, the sheet iron plate is fed at first to a stamping and/or nibbling station in which stamping and nibbling operations ar executed. The sheet iron plate...
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4851637 |
Method for processing large cast iron dies, particularly for vehicle sheet-metal pressing, and the apparatus for its implementation
A method for processing large cast iron dies for use in pressing the sheet-metal components of vehicle bodies is described; this method results in improved pressing performance, such as extended...
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4847181 |
Laser marking method
A laser marking method comprising steps of preparing a label material consisting of a colour layer and a transparant layer, applying the label material on a marking surface of a work, illuminating...
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4842782 |
Manufacture of ophthalmic lenses by excimer laser
Complex small objects such as ophthalmic lenses are quickly and accurately fabricated from plastic or glass blanks of ablatable material such as plastic or glass by cutting, shaping, and radiusing...
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4843238 |
Method for identifying a blistered film in layered films
In a method for identifying blistered film in layered films, a focused ion beam irradiates the approximate center of the blister and a portion which has no blister, and individual sets of the...
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4842677 |
Excimer laser patterning of a novel resist using masked and maskless process steps
A dual layer resist configuration is employed for photopatterning high resolution conductive patterns on underlying polymeric or ceramic substrates, particularly substrates exhibiting surface...
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4841099 |
Electrically insulating polymer matrix with conductive path formed in situ
An electrical component is made from an electrically insulating polymer matrix filled with electrically insulating fibrous filler which is capable of heat conversion to electrically conducting...
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4839493 |
Arrangement for machining workpieces by means of a laser beam by building up a plasma that is to be kept within limits
In machining a workpiece, maximal absorption of laser irradiation in the workpiece is achieved by a minimal interference by optical back-coupling and plasma effects is achieved by continuously...
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4838987 |
Method of etching a semiconductor body
A method of etching a semiconductor body having first (6) and second opposed surfaces and having a first semiconductor region (1) adjacent the first surface (6) and a second semiconductor region...
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4835361 |
Laser machining for producing very small parts
This invention teaches a method for producing small machined parts by laser including a description of how to avoid sensitive edges of the work piece being machined and how to control beam size for...
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4834834 |
Laser photochemical etching using surface halogenation
A method for maskless patterning and etching of metals is disclosed. The method comprises the steps of providing a metal, forming a passivating layer of an oxide or nitride upon the surface of the...
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4830265 |
Method for diffusion of metals and alloys using high energy source
Diffusion bonding of aluminum alloy objects of different sizes and shapes are greatly improved when the surface of the object is exposed to a high energy source which causes a heat treatment or...
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4824011 |
Catalyst carrier body and method and apparatus for brazing the same
A method for producing honeycomb-like brazed metallic catalyst carrier bodies, includes applying brazing material to thin structured metal sheets, subsequently heating areas to be brazed with laser...
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4822975 |
Method and apparatus for scanning exposure
A method and an apparatus for scanning exposure, with a pulsed laser beam. A pattern of a first member is irradiated by the pulsed laser beam and the pattern of the first member is projected onto a...
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4821386 |
Method of producing a rolling bearing race
A method of producing a rolling bearing race provided with a continuous rupture seam along at least one area of its periphery and having a seating surface and a race for rolling elements, the...
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4820897 |
Process for producing miniature piezoelectric devices using laser machining and devices obtained by this process
Process for the production of miniature piezoelectric devices using machining by laser and devices obtained by this process. The piezoelectric material formed by lithium niobate or lithium...
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