Abstract:
Es wird ein strahlungsemittierender Halbleiterchip mit den folgenden Merkmalen angegeben: - einem Halbleiterkörper (1) umfassend: - eine epitaktische Halbleiterschichtenfolge (2) mit einer aktive Zone (3), die dazu geeignet ist, elektromagnetische Strahlung zu erzeugen, - einer Strahlungsaustrittsfläche, von der die im Betrieb des Halbleiterchips erzeugte elektromagnetische Strahlung ausgesandt wird, - einer rückseitigen Hauptfläche, die der Strahlungsaustrittsfläche gegenüberliegt, wobei - ein Mehrschichtenstapel (7) mit einer Barriereschicht (4, 4', 4'') und einer Lotschicht (6) auf die rückseitige Hauptfläche des Halbleiterkörpers (1) aufgebracht ist, - die Barriereschicht (4) zwischen der rückseitigen Hauptfläche des Halbleiterkörpers (1) und der Lotschicht (6) angeordnet ist, und - die Lotschicht (6) von außen frei zugänglich ist. Weiterhin werden ein Verfahren zur Herstellung eines strahlungsemittierenden Halbleiterchips und ein Verfahren zur Herstellung einer strahlungsemittierenden Anordnung angegeben.
Abstract:
An assembly with modules (110, 1310) containing integrated circuits and attached to a wiring substrate (120) is reinforced by one or more reinforcement frames (410) attached to the wiring substrate. The modules are located in openings (e.g. cavities and/or through-holes 414) in the reinforcement frame. Other features are also provided.
Abstract:
A multilayer structure for a semiconductor device and a method of forming a multilayer structure for a semiconductor device. The multilayer structure comprises: a substrate having an electrically conductive portion thereon; a dielectric layer formed over the substrate; the dielectric layer comprising an opening over at least part of the electrically conductive portion; and a conductive pillar formed on the at least part of the electrically conductive portion; wherein the conductive pillar comprises walls defined by at least the opening of the dielectric layer and an opening of a patterned layer.
Abstract:
Embodiments of the present disclosure provide a package on package arrangement comprising a first package (804,904) including a substrate layer (116) including a top side (117a), and a bottom side (117b) that is opposite to the top side, wherein the top side of the substrate layer defines a substantially flat surface (117a), and a first die (118) coupled to the bottom side of the substrate layer. The arrangement also comprises a second package (802,902) including a plurality of rows of solder balls (806,906) and at least one of one or both of an active component or a passive component (810,910,920). The second package is attached, via the plurality of rows of solder balls, to the substantially flat surface of the top side of the substrate layer of the first package. The active component and/or a passive component (810,910,920) is attached to the substantially flat surface of the top side of the substrate layer of the first package.
Abstract:
A structure (10) may include bond elements (24) having bases joined to conductive elements (18) at a first portion of a first surface and end surfaces remote from the substrate (12). A dielectric encapsulation element (40) may overlie and extend from the first portion and fill spaces between the bond elements (24) to separate the bond elements (24) from one another. The encapsulation element (40) has a third surface facing away from the first surface. Unencapsulated portions of the bond elements (24) are defined by at least portions of the end surfaces uncovered by the encapsulation element at the third surface. The encapsulation element (40) at least partially defines a second portion (210) of the first surface that is other than the first portion and has an area sized to accommodate an entire area of a microelectronic element (602). Some conductive elements (18) are at the second portion and configured for connection with such microelectronic element (602).
Abstract:
A solution for packaging a two terminal device, such as a light emitting diode, is provided. In one embodiment, a method of packaging a two terminal device includes: patterning a metal sheet to include a plurality of openings; bonding at least one two terminal device to the metal sheet, wherein a first opening corresponds to a distance between a first contact and a second contact of the at least one two terminal device; and cutting the metal sheet around each of the least one two terminal device, wherein the metal sheet forms a first electrode to the first contact and a second electrode to the second contact.
Abstract:
Integrated circuit packages comprise vias, each of which extends from a pad in communication with an integrated circuit on a semiconductor chip through insulating material overlying the semiconductor chip to an attachment surface facing a substrate. The portion of each via proximate the attachment surface is laterally offset from the portion proximate the pad from which it extends in a direction away from the centre of the semiconductor chip. Metallic material received in the vias mechanically and electrically interconnects the semiconductor chip to the substrate.