Patent ID: 11973058
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method of making a semiconductor die (die) package comprising the steps of:
forming a release layer on a flat and stiff initial substrate;
forming one or more external package connections on the release layer;
forming a substrate on the release layer, the substrate having one or more substrate layers, one or more of the substrate layers having one or more substrate connections, the substrate connections being one of a substrate horizontal connection and a substrate via connections, the substrate having a top substrate layer;
connecting one or more dies on the top substrate layer;
forming and connecting a dam enclosure on the top substrate layer, the dies being enclosed within the dam enclosure; and
depositing one or more underfills within the dam enclosure, the underfills surrounding the dies.