Patent ID: 11942407
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method of making a semiconductor package, comprising:
forming a polyimide layer over a circuit on a device side of a semiconductor die;
removing a portion of the polyimide layer to produce a cavity;
forming a seed layer on the polyimide layer and within the cavity;
forming a copper bump on the seed layer in the cavity;
forming a nickel layer over the copper bump;
forming a palladium layer over the nickel layer; and
removing the seed layer from atop the polyimide layer, outside the cavity, after forming the conductive member in the cavity such that a remaining portion of the seed layer is positioned between the conductive member and the insulating member, wherein the seed layer abuts an outer perimeter of the conductive member.