Abstract:
A method of forming an aperture in a substrate having a first side and a second side opposite the first side includes irradiating the substrate with a laser beam to form a laser-machined feature within the substrate and having a sidewall. The sidewall is etched with an etchant to change at least one characteristic of the laser-machined feature. The etching can include introducing the etchant into the laser-machined feature from the first side and the second side of the substrate. An apparatus and system for forming an aperture are also disclosed.
Abstract:
Die Erfindung bezieht sich auf ein Verfahren zum Abtragen einer Polyurethanbeschichtung (4) von einem aus Verbundwerkstoff bestehenden Nasenkonus (1) eines Strahltriebwerks. Um die Polyurethanbeschichtung (4) schonend vom Verbundwerkstoff zu entfernen, ohne den Verbundwerkstoff zu schädigen, wird die Polyurethanbeschichtung (4) vom Verbundwerkstoff mit dem Laserstrahl (3) eines Gaslasers (2) abgetragen.
Abstract:
The invention relates to an apparatus and method for coating a pipe (20) or a section of a pipe with a polymer layer (26). The apparatus comprises an applicator (22) for applying polymer melt on the surface of a pipe or pipe section, a roller (24) for pressing the polymer applied by the applicator towards the pipe or pipe section, the roller having a central axis, and means for circumferentially moving the applicator and the roller around the periphery of the pipe or pipe section. According to the invention the apparatus further comprises a drive for rotating the roller actively around its own central axis as the roller is moving around the periphery of a pipe or pipe section. By means of the invention, higher quality coatings can be applied to field joints of steel pipes, for example.
Abstract:
A system and method of repairing electrical circuits including employing a laser and at least one laser beam delivery pathway for laser pre-treatment of at least one conductor repair area of a conductor formed on a circuit substrate and employing the laser and at least part of the at least one laser beam delivery pathway for application of at least one laser beam to a donor substrate in a manner which causes at least one portion of the donor substrate to be detached therefrom and to be transferred to at least one predetermined conductor location.
Abstract:
Die Erfindung stellt ein Verfahren zur Verfügung, das es ermöglicht, aus einem aus konventionellen Titanlegierungen erzeugten Titan-Flachprodukten, wie aus konventionellen Titanlegierungen erzeugten Titanblechen oder -band, Bauteile mit verbesserter Hochtemperatureignung herzustellen. Die Erfindung betrifft dann ein Verfahren zum Herstellen eines Bauteiles aus einem aus einer Titanlegierung erzeugten Titan-Flachprodukt (3) mit einem Aufbringen einer Aluminium-Schicht (6, 7) auf mindestens eine Seite des Titan-Flachproduktes (3) durch Walzplattieren (5) und Kaltwalzen (9).
Abstract translation:为了薄化半导体或半导体器件的衬底,提供一种制造半导体器件的方法,其中通过在不产生裂纹的情况下处理衬底并且通过进行热处理来提高半导体器件之间的接触,可以以高产率制造半导体器件, 背部半导体和金属。 通过从其顶部切割半导体基板来切割,并且基板被固定到支撑基部,其顶部面向支撑基部。 在对衬底的背面进行抛光以使半导体衬底细化之后,在衬底背面依次形成作为热接收层的金属电极和碳膜。 接下来,通过用功率密度为1kW / cm 2〜1MW / cm 2的光照射碳膜,在通过碳膜传导的热下,将半导体与金属电极之间的界面合金化, cm 2,持续0.01ms至10ms的短时间。 然后,半导体衬底沿着切割分离。
Abstract:
A method for pre-calibration of a laser micro-machining system to achieve alignment tolerances greater than the diffraction limit of an illumination wavelength. A blank is mounted in the system, such that the beam spot is incident on its top surface. Two marks are ablated in the blank. The centers of the marks are a predetermined distance apart. The blank is illuminated with light and imaged with a digital camera. The resulting image is scaled such that each pixel has a width corresponding to a distance on the imaged surface, which is less than half of the illumination wavelength. The number of pixels between the centers of the marks determines this distance. The locations of the marks in the image are determined and a coordinate system is defined for surfaces imaged by the digital camera. Coordinates of the beam spot in this coordinate system are also determined using the second mark.