Patent ID: 11862537
Assignee: KIA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A power module comprising:
a component to be soldered; and
a first substrate including a first metal layer, a dielectric layer and a second metal layer,
wherein the first metal layer incudes an upper surface having a bonding area, to which the component to be soldered is bonded by solder, and a groove portion formed on the outside of the bonding area,
wherein the dielectric layer is bonded to a lower surface of the first metal layer,
wherein the second metal layer is bonded to a lower surface of the dielectric layer,
wherein a surface of the component to be soldered is formed by a material with higher solder wettability than a surface of the first metal layer and
wherein the groove portion is spaced outward from the component to be soldered.