50593results about "Laser beam welding apparatus" patented technology

A method of cutting material for use in an implantable medical device employs a plotted laser cutting system. The laser cutting system is computer controlled and includes a laser combined with a motion system. The laser precisely cuts segments out of source material according to a predetermined pattern as designated by the computer. The segments are used in constructing implantable medical devices. The cutting energy of the laser is selected so that the cut edges of the segments are melted to discourage delamination or fraying, but communication of thermal energy into the segment beyond the edge is minimized to avoid damaging the segment adjacent the edge.

A method of forming a conductor in a thin film structure on a semiconductor substrate includes forming high aspect ratio openings in a base layer having vertical side walls, depositing a dielectric barrier layer comprising a dielectric compound of a barrier metal on the surfaces of the high aspect ratio openings including the vertical side walls, depositing a metal barrier layer comprising the barrier metal on the first barrier layer, depositing a main conductor species seed layer on the metal barrier layer and depositing a main conductor layer. The method further includes annealing the main conductor layer by (a) directing light from an array of continuous wave lasers into a line of light extending at least partially across the thin film structure, and (b) translating the line of light relative to the thin film structure in a direction transverse to the line of light. The method of Claim 1 further comprising, prior to the annealing step, depositing an amorphous carbon optical absorber layer on the main conductor layer. The step of depositing an amorphous carbon optical absorber layer includes introducing a carbon-containing process gas into a reactor chamber containing the substrate in a process zone of the reactor, applying RF source power to an external reentrant conduit of the reactor to generate a reentrant toroidal RF plasma current passing through the process zone and applying a bias voltage to the substrate.

A running web of tipping paper (one side of which is coated with a film of adhesive) in a filter cigarette making machine is subdivided into discrete uniting bands and / or is perforated by resorting to a single source or to two discrete sources of coherent radiation. Each source is associated with a control unit which initiates the emission of short-lasting flashes of coherent radiation. Such radiation is caused to impinge upon a diffractive focusing lens which focuses coherent radiation upon one or more masks having openings for coherent radiation which is to sever the web along transversely extending linear zones and / or to provide the web with desired arrays of perforations. The perforations permit atmospheric air to enter the column of tobacco smoke in a filter cigarette wherein the tobacco-containing portion and the filter mouthpiece are united by a perforated adhesive-coated uniting band.