Patent ID: 7737552

Claim:
A device comprising at least two elements, the elements being bonded by a bonding structure located between a first main surface of a first element and a first main surface of a second element: wherein the bonding structure comprises a solder structure which essentially forms a stack of a first solder ball in contact with the first main surface of the first element, and second solder ball in contact with the first main surface of the second element and a middle or third solder volume, and which form a single structure, wherein the main surface of at least one of the first and the second element comprises one or more components or structures extending outwards from the respective main surfaces, wherein the height of at least one of the component(s) or structure(s) present on the main surface of the first and the second elements is smaller than the height of the solder structure but larger than the solder ball on the respective main surface on which the component(s) or structure(s) are present, and wherein the first and the second solder ball(s) are laterally embedded in a first and a second embedding layer of non-conductive material applied on the first main surfaces of the respective first and second element.