Patent ID: 11923288
Assignee: KYOCERA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A wiring substrate comprising:
an insulation substrate that comprises a recess section in a first surface, a frame portion that forms a side surface which connects an opened surface of the recess section and a bottom surface of the recess section to each other, and a base portion that forms the bottom surface; and
an electrical wiring structure that is on and inside the base portion,
wherein the frame portion comprises a first conductive portion having a plate shape in the frame portion, and extending from the first surface to the base portion through the frame portion,
wherein the base portion comprises a second conductive portion in the base portion,
wherein the first conductive portion and the second conductive portion are connected to each other, and
wherein the first conductive portion and the second conductive portion are continuous with each other and form a curved surface.