Patent ID: 11949003
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a collector layer, a base layer, and an emitter layer that are disposed on a substrate to form a bipolar transistor;
an emitter electrode that is in ohmic contact with the emitter layer; and
an emitter wiring line connected to the emitter electrode through a contact hole formed in an insulating film,
wherein
the emitter layer has a shape that is long in one direction in plan view, and
a difference in dimension with respect to a longitudinal direction of the emitter layer between the emitter layer and the contact hole is larger than a difference in dimension with respect to a width direction of the emitter layer between the emitter layer and the contact hole.