Abstract:
Ein Strahlung aussendender oder empfangender Halbleiterchip (9) wird zum Montieren auf einen Leadframe (2), der mit einem vorgefertigten Kunststoffgehäusekörper (5), einem sogenannten premolded package, umspritzt ist, weichgelötet. Durch die Verwendung eines niedrig schmelzenden Lots (3), das in einer Schichtdicke kleiner als 10 µm aufgebracht wird, läßt sich der Lötvorgang weitestgehend ohne thermische Schädigung des Kunststoffgehäusekörpers (5) durchführen.
Abstract:
The invention relates to a radiation-emitting component comprising a semiconductor chip (2), which has a first main surface (25), a second main surface (26) located opposite of the first main surface, and an active region (23) provided for generating radiation; a substrate (5), on which the semiconductor chip is fastened on the side of the second main surface (26); and a decoupling layer (4), which is disposed on the first main surface (25) of the semiconductor chip (2) and forms lateral decoupling surfaces (40) spaced apart from the semiconductor chip (2) in the lateral direction, wherein a recess (45) tapering toward the semiconductor chip (2) is formed in the decoupling layer (4), said recess deflecting radiation exiting the first main surface (25) in the direction of the lateral decoupling surface (40) during operation. The invention further relates to a method for producing a radiation-emitting component.
Abstract:
A plastic housing (2) is disposed on a support element (1) and comprises a recess (3) in which an optoelectronic component (12) is arranged. The recess (3) has an opening to the exterior (9) on the side facing away from the support element (1), which can be provided with a transparent cover. One or several structures (5, 6) can be provided at the plastic housing (2) in order to align the cover and/or the optical components relative to the optoelectronic component.
Abstract:
An illumination unit comprising a luminescence diode chip mounted on a chip carrier and an optical waveguide is specified. The optical waveguide (3) is assembled from at least two separate parts (4, 5), the luminescence diode chip (2) being encapsulated by one of the parts (4) of the optical waveguide (3). A method for producing a luminescence diode chip (2) of this type and also an LCD display comprising an illumination unit of this type are furthermore specified.
Abstract:
The invention relates to a housing body (1), comprising an upper side (2), a lower side (22), opposite the upper side (2) and lateral faces connecting the upper side (2) and the lower side (22) provided as assembly faces (19), whereby the housing body (1) comprises a number of layers (8) containing a ceramic material and a principal extension direction for the layers (23, 24, 25) runs perpendicular to the assembly faces (19). The invention further relates to a method for production of a housing body (1).