Patent ID: 11961810
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. A device comprising:
a metal trace extending along a major surface of a first substrate, the metal trace having a first end mounted to the first substrate and having a second end distal to the first end, the first end having a greater width than the second end; and
a metal bump extending from a second substrate, the metal bump having a third end mounted to the second substrate and having a fourth end distal to the third end, the third end having a greater width than the fourth end, wherein the metal bump and the metal trace are physically and electrically coupled together through direct metal-to-metal bonds, an interface between the metal bump and the metal trace being free of solder, and wherein the metal trace has a greater length than the metal bump in a direction parallel to the major surface of the first substrate; and
a first oxide layer disposed on an entirety of a sidewall of the metal bump, wherein the sidewall extends from the third end to the fourth end.