Patent ID: 11887978
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. A method comprising:
forming a first layer including a backside metal rail extending in a first direction;
forming a second layer above the first layer along a second direction perpendicular to the first direction, wherein the second layer includes active regions for a set of power switches, wherein the active regions of the set of power switches are connected to form a contiguous region extending in the first direction, wherein the backside metal rail is electrically coupled to one or more of the active regions through one or more via contacts; and
forming a third layer above the second layer along the second direction, wherein the third layer includes a front side metal rail electrically coupled to one or more of the set of power switches through one or more additional via contacts.