Abstract:
Es ist eine Fertigungseinrichtung und ein damit ausführbares Verfahren beschrieben, mit der bzw. mit dem Informationen über Prozessparameter von mit einem Lötroboter (7) der Fertigungseinrichtung ausgeführten Lötungen ableitbar sind. Hierzu umfasst die Fertigungseinrichtung eine auf einer Arbeitsebene (1) anzuordnende Temperaturmesseinrichtung (15), auf der mit dem Lötroboter (7) Testlötungen ausführbar sind, und eine an die Temperaturmesseinrichtung (15) angeschlossene Auswertungseinheit (31), die anhand der im Rahmen einer Testlötungen gemessenen Temperaturen (T) ein Temperaturprofil (T(t)) als Funktion der Zeit (t) ableitet und auswertet.
Abstract:
A reflow oven used to join electronic components to a substrate includes a chamber housing having surfaces that are in contact with heated air mixed with contaminants, including flux, and an intermediate layer selectively applied to the surfaces of the chamber housing. The reflow oven may include fabricating the intermediate layer with a foam material, including foaming polymers, e.g., epoxy, polyurethane, polyester, and silicone, or a non-foam material, including non-foaming polymers, e.g., polytetrafluoroethylene and polyimide. A method of treating surfaces of a reflow oven exposed to contaminants, including flux, is further disclosed.
Abstract:
A method of assembling components, such as electronic components, onto a substrate, such as an electronic substrate, includes applying solder paste to an electronic substrate to form a solder paste deposit, placing a low temperature preform in the solder paste deposit, processing the electronic substrate at a reflow temperature of the solder paste to create a low temperature solder joint, and processing the low temperature solder joint at a reflow temperature that is lower than the reflow temperature of the solder paste. Other methods of assembling components and solder joint compositions are further disclosed.
Abstract:
The invention relates to a method for producing a structured multi-layered system (20) using a processing beam (L) of a wave length, capable of natural interference, for the at least one layer of the multi-layer system, which is at least partially permeable, said layer thickness (d; d1) of at least one first partially permeable layer (13, 25), the wavelength and intensity of the machining beam and their incidence angle are predetermined in such a way that in the first layer, in the active area of the treatment beam, an increased amount of energy is absorbed as a result of destructive interference, said quantity being equal to a modification of the energy threshold of the first layer or slightly above this.
Abstract:
A first acousto-optic deflector receives a laser beam. The first acousto-optic deflector diffracts the received laser beam along a first axis. A second acousto-optic deflector receives the diffracted laser beam. The second acousto-optic deflector diffracts the received diffracted laser beam along a second axis.