Patent ID: 11935848
Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The package according to claim 1,
wherein the first conductive film, the first portion of the side wall and a part of the main surface of the base member constitute a first microstrip line, and the second conductive film, the second portion of the side wall and a part of the main surface of the base member constitute a second microstrip line,
wherein the second portion of the side wall has the recess, and
wherein a characteristic impedance of the second microstrip line in a part overlapping the recess when viewed in a direction normal to the main surface is at least 10% higher than a characteristic impedance of the first microstrip line or a characteristic impedance of the second microstrip line in a different part not overlapping the recess in the normal direction.