Abstract:
Bei der Vorrichtung zum Laserschweißen von Werkstücken ist mindestens ein von einer Laserstrahlungsquelle emittierter Laserstrahl durch ein manuell von einem Bediener bewegbares Laserbearbeitungsgerät in den Fügebereich von Werkstücken gerichtet. Am und/oder im Gehäuse ist mindestens ein Sensorelement, das zur Erfassung der Position des Brennflecks auf der Werkstückoberfläche ausgebildet ist, vorhanden. Die mit dem/den Sensorelement(en) erfassten Positionssignale werden einer Regeleinrichtung zugeführt, wobei die Regeleinrichtung so ausgebildet ist, dass eine Auslenkung der Position des Brennflecks des mindestens einen Laserstrahls auf eine vorgegebene Position im Fügebereich der Werkstücke entlang eines vorgegebenen Schweißnahtverlaufs erreichbar. Allein oder zusätzlich ist im oder am Laserbearbeitungsgerät eine Einrichtung, die zur Auslenkung des Laserstrahls in mindestens eine Achsrichtung ausgebildet, wobei die mindestens eine Achsrichtung in einem Winkel von mindestens 10 ° in Bezug zur Richtung des Schweißnahtverlaufs an der jeweiligen Position des Brennflecks ausgerichtet ist.
Abstract:
기판 상의 솔더링 가공 영역에 레이저 빔을 조사하여 솔더링 공정을 수행하는 레이저 솔더링 장치가 개시된다. 개시된 레이저 솔더링 장치는, 다중모드 레이저 빔을 발진시키는 레이저 광원; 및 상기 레이저 광원으로부터 방출된 상기 다중모드 레이저 빔을 처리하여 상기 솔더링 가공 영역에 조사하는 것으로, 입사되는 상기 다중모드 레이저 빔을 일정한 크기의 평행빔으로 만들어 출사시키는 콜리메이터(collimator)를 포함하는 광학계;를 포함한다.
Abstract:
Apparatus and methods of thermally processing semiconductor substrates are disclosed. Aspects of the apparatus include a source of intense radiation and a rotating energy distributor that distributes the intense radiation to a rectifier. The rectifier directs the radiation toward the substrate. Aspects of the method include using a rotating energy distributor to distribute pulsed energy to a substrate for processing. The rotational rate of the energy distributor is set based on the pulse repetition rate of the energy source. A substrate may be continuously translated with respect to the energy distributor at a rate set based on the pulse repetition rate of the energy source.
Abstract:
Method and system for laser cutting is disclosed. Using a novel dual-focus optical conversion unit. The dual-focus optical conversion unit may comprise a beam splitter and a convex mirror. The beam splitter may be insensitive to the polarization of an incident beam. The convex mirror may be placed beyond and parallel to the beam splitter, wherein the surface of the convex mirror may be coated with a reflective phase-retarder coating.
Abstract:
In a system for severing conductive links by laser irradiation to repair electronic devices, multiple laser beams are deflected at high-speed to target selected links for processing by positioning laser spots in a two dimensional pattern during relative motion of a substrate and a beam delivery system. As link targeting flexibility is increased, selection may be required from a large number of addressable link pairs. Various embodiments advantageously use beam deflection and beam splitting to improve memory repair processing rates.