Patent ID: 11948887
Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
providing a first conductive pattern comprising:
a first conductive trace comprising a first trace top side, a first trace bottom side, and a first trace lateral side between the first trace top side and the first trace bottom side; and
a second conductive trace comprising a second trace top side, a second trace bottom side, and a second trace lateral side between the second trace top side and the second trace bottom side, wherein an exposed surface of the second trace lateral side faces an exposed surface of the first trace lateral side;

providing a first dielectric structure over the first conductive pattern, wherein the first dielectric structure includes a first dielectric structure first opening and a first dielectric structure second opening that respectively expose a portion of the first trace top side and a portion of the second trace top side;
providing a first conductive seed layer on the first dielectric structure, wherein the first conductive seed layer conforms to the first dielectric structure first opening and the first dielectric structure second opening and contacts the first trace top side and the second trace top side;
oxidizing exposed surfaces of the first conductive seed layer to form a first oxidized barrier that includes first oxidized barrier lateral portions formed from exposed lateral sidewalls of the first conductive seed layer along lateral sidewalls of the first dielectric structure first opening and the first dielectric structure second opening, wherein oxidizing the exposed surfaces of the first conductive seed layer comprises masking portions of the first conductive seed layer, and oxidizing unmasked portions of the first conductive seed layer; and
providing a second conductive pattern on the first oxidize barrier, wherein the second conductive pattern is in the first dielectric structure first opening and the first dielectric structure second opening and is electrically coupled to the first conductive pattern via the first conductive seed layer on the first trace top side and the second trace top side.