Patent ID: 11935859
Assignee: XINTEC INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A manufacturing method of a chip structure, comprising:
bonding, by a bonding layer, a first substrate to a second substrate, wherein the bonding layer is between the first substrate and the second substrate;
forming an opening in the second substrate;
forming a conductive via in the opening of the second substrate;
forming a trench in the first substrate and the second substrate such that the conductive via is exposed through the trench, wherein the first substrate has a first inclined sidewall, the bonding layer has an inclined lateral surface, and the first inclined sidewall of the first substrate, the inclined lateral surface of the bonding layer, and a second inclined sidewall of the second substrate have a same slope; and
forming a redistribution layer that extends from a top surface of the first substrate to a top surface of a lower portion of the second substrate sequentially along the first inclined sidewall, the inclined lateral surface, and the second inclined sidewall, and is electrically connected to the conductive via.