Self-supporting connecting element for a semiconductor chip
AssigneeInfineon Technologies AG
InventorsAnton Legen, Jochen Thomas, Ingo Wennemuth
Life of this patent
Estimating the term…
Abstract
A connecting element for electrically connecting a semiconductor chip and a superordinate circuit board includes an elastic metal strip that is bent forming two metal limbs with flattened limb ends, thus forming a base between the metal limbs which is suitable for contacting and providing electrical connectivity to a plurality of contact pads of a superordinate circuit board. At least one of the two limb ends is electrically connected to the contact areas of a semiconductor chip, while the other limb end is elastically supported on the top side of the semiconductor chip, thereby enabling the connecting element to be self supporting.
Claims16
A connecting element for electrically connecting a semiconductor chip and a superordinate circuit board, comprising:
- an electrically conductive elastic metal strip that is bent to form two metal limbs with flattened limb ends, thus forming a base between the metal limbs, the base being suitable for contacting and providing electrical connectivity to a contact pad of the superordinate circuit board, wherein at least one of the flattened limb ends is configured to be fixed on a contact area of a top side of the semiconductor chip and, the other of the flattened limb ends is configured to engage the top side of the semiconductor chip such that, in situ with the semiconductor chip, the metal limbs extend from the top side of the semiconductor chip such that the metal limbs are not in contact with an underlying member, the connecting element thereby being self supporting.
A semiconductor chip, comprising:
- a plurality of contact areas;
- and
- a plurality of connecting elements each comprising a connecting element for electrically connecting the semiconductor chip and a superordinate circuit board, the connecting element comprising:
- an electrically conductive elastic metal strip that is bent to form two metal limbs with flattened limb ends, thus forming a base between the metal limbs, the base being suitable for contacting and providing electrical connectivity to a contact pad of the superordinate circuit board, wherein at least one of the flattened limb ends is configured to be fixed on a contact area of a top side of the semiconductor chip and, the other of the flattened limb ends is configured to engage the top side of the semiconductor chip such that, in situ with the semiconductor chip, the metal limbs extend from the top side of the semiconductor chip such that the metal limbs are not in contact with an underlying member, the connecting element thereby being self supporting;
- wherein at least one of the flattened limb ends of each of the connecting elements is fixed to one of the contact areas of the semiconductor chip.
Dependencies are inferred from the claim text.