Patent ID: 11887965
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor package, comprising:
a first redistribution substrate;
a first semiconductor chip mounted on the first redistribution substrate;
a second semiconductor chip disposed on a top surface of the first semiconductor chip,
wherein an upper portion of the first semiconductor chip and a lower portion of the second semiconductor chip contain an insulating material, the insulating material includes oxygen or nitrogen, the upper portion of the first semiconductor chip includes an oxide, a nitride or an oxynitride of a semiconductor material of the first semiconductor chip, the lower portion of the second semiconductor chip includes an oxide, a nitride or an oxynitride of a semiconductor material of the second semiconductor chip, and a concentration of oxygen or nitrogen in the upper portion of the first semiconductor chip and a concentration of oxygen or nitrogen in the lower portion of the second semiconductor chip decreases with increasing distance from an interface of the first and second semiconductor chips;

an insulating layer surrounding the first and second semiconductor chips on the first redistribution substrate;
a second redistribution substrate disposed on the second semiconductor chip and on which the second semiconductor chip is mounted; and a connection terminal disposed at a side of the first and second semiconductor chips and connected to the first and second redistribution substrates,
wherein an inactive surface of the second semiconductor chip is in contact with an inactive surface of the first semiconductor chip, and
wherein, at the interface of the first and second semiconductor chips, an upper portion of the first semiconductor chip and a lower portion of the second semiconductor chip constitute one body formed of a same material.