Patent ID: 11948808
Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of manufacturing a semiconductor device, the method comprising:
providing a first structure comprising:
a support structure;
a semiconductor component comprising:
a component top side coupled to the support structure and facing a first direction;
a component bottom side opposite the component top side and facing a second direction; and
a component pad at the component front bottom side;

a conductive pillar that is coupled to the component pad and extends in the second direction from the component pad;
an encapsulating material comprising an encapsulant top side and an encapsulant bottom side opposite the encapsulant top side, wherein the encapsulant top side faces the support structure, and wherein the encapsulating material laterally surrounds the semiconductor component and the conductive pillar; and
an upper signal distribution structure over the the component bottom side and over the encapsulant bottom side, wherein the upper signal distribution structure comprises an upper signal distribution structure top side facing the first direction and an upper signal distribution structure bottom side facing the second direction;

forming a lower signal distribution structure comprising a lower signal distribution structure top side coupled to the upper signal distribution structure top side;
wherein forming the lower signal distribution structure comprises sequentially forming layers of the lower signal distribution structure in the second direction such that a conductive layer of the lower signal distribution structure extends into an opening of a dielectric layer of the lower signal distribution structure and towards the upper signal distribution structure; wherein the lower signal distribution structure comprises an under bump metal structure that has a concave shape that opens downward;
wherein the under bump metal structure comprises a bump upper side and a bump lower side; and
wherein the bump upper side is coupled to a bottom side of the lower signal distribution structure.