Component for a display, and method for producing a component
The invention relates to a component with a support and a plurality of semiconductor chips, in which the support has a single-ply, electrically conducting support layer, wherein the support layer is structured and has a plurality of sublayers. The support layer has a mounting surface, on which the semiconductor chips are arranged, wherein the semiconductor chips are mechanically supported by the support layer and electrically conductively connected to the sublayers. The support has a common electrode for semiconductor chips of a group of a plurality of semiconductor chips, wherein the common electrode is formed by one of the sublayers or by a plurality of electrically connected sublayers of the support layer. The invention further relates to a method for producing a component of this kind.
1. A component comprising a carrier and a plurality of semiconductor chips, wherein
the carrier has an electrically conductive carrier layer, wherein the carrier layer is embodied in structured fashion and has a plurality of partial layers spaced apart laterally,
the carrier has an encapsulation layer laterally enclosing the semiconductor chips, wherein the encapsulation layer is embodied in continuous fashion and thus holds together the laterally spaced apart partial layers of the carrier layer,
the encapsulation layer and the semiconductor chips, along the vertical direction perpendicular to a main surface of extent of the carrier or the carrier layer, terminate flush with one another,
the carrier layer has a mounting surface, on which the semiconductor chips are arranged, wherein the semiconductor chips are mechanically supported by the carrier layer and are electrically conductively connected to the partial layers,
the carrier has a common electrode for semiconductor chips of a group composed of a plurality of the semiconductor chips, wherein the common electrode is formed by one of the partial layers or by a plurality of partial layers—which are in electrical contact with one another—of the carrier layer,
the two adjacent partial layers of the carrier layer are spaced apart laterally from one another by an intermediate region, wherein
the two adjacent partial layers are assigned to different electrical polarities of the component,
the intermediate region has a lateral width that is at most 50 μm, and
one of the semiconductor chips is electrically conductively connected to the two adjacent partial layers, in plan view partly covers the two adjacent partial layers and bridges the associated intermediate region situated between the two adjacent partial layers.
2. The component as claimed in claim 1 ,
wherein the carrier layer has a vertical layer thickness of between 20 μm and 200 μm inclusive.
3. The component as claimed in claim 1 ,
wherein the semiconductor chips are configured for generating electromagnetic radiation, wherein the group composed of those semiconductor chips which share the common electrode forms one pixel or a plurality of pixels.
4. The component as claimed in claim 3 ,
wherein those semiconductor chips which share the common electrode and form one pixel are in each case electrically conductively connected to a further individual partial layer and thus individually drivable via the partial layers.
5. The component as claimed in claim 1 ,
wherein the intermediate region is filled with an insulation layer, which electrically insulates two adjacent partial layers of the carrier layer from one another.
6. The component as claimed in claim 1 ,
wherein the mounting surface has a plurality of laterally spaced apart partial mounting surfaces formed by surfaces of the partial layers.
7. The component as claimed in claim 1 ,
wherein the mounting surface is coated with a noble metal, wherein the carrier layer has a rear side facing away from the mounting surface, said rear side being at least partly coated with the same noble metal.
8. The component as claimed in claim 1 ,
wherein the mounting surface is embodied in planar fashion, wherein
the semiconductor chips project beyond the entire carrier layer along the vertical direction, and
the carrier layer has no partial region that projects beyond the planar mounting surface in the direction of the semiconductor chips.
9. The component as claimed in claim 1 ,
wherein the partial layers have rear side surfaces facing away from the mounting surface, wherein
the rear side surfaces are embodied in curved fashion regionally,
cavity-like openings of the carrier layer are formed by the curved rear side surfaces of adjacent partial layers, and
the openings are filled with the encapsulation layer in order to increase the mechanical stability of the carrier.
10. The component as claimed in claim 1 ,
wherein the partial layers have planar rear side surfaces facing away from the mounting surface, wherein
the rear side surfaces are free of a covering by the encapsulation layer, and
the carrier has at least one solder ball or a contact structure on the respective rear side surfaces of the partial layers of the carrier layer.
11. The component as claimed in claim 1 ,
wherein the partial layers have rear side surfaces facing away from the mounting surface, wherein
the semiconductor chips are laterally enclosed by a front-side partial layer of the encapsulation layer, and
contact structures laterally enclosed by a rear-side partial layer of the encapsulation layer are formed on the rear side surfaces, and
the front-side partial layer and the rear-side partial layer of the encapsulation layer differ from one another in their material composition.