Patent ID: 11894365
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power amplifying device comprising:
a plurality of bipolar transistors that are disposed side by side in a first direction on a substrate, each of the plurality of bipolar transistors including a collector layer, a base layer, an emitter layer, and at least one base electrode electrically connected to the base layer;
a plurality of first capacitance devices that are provided corresponding to the respective base electrodes of the plurality of bipolar transistors, each of the plurality of first capacitance devices having a first electrode and a second electrode, the first electrode being connected to the corresponding base electrode, the second electrode being supplied with a radio frequency signal, the plurality of first capacitance devices being disposed on an identical side relative to a second direction when viewed from the plurality of bipolar transistors, the second direction being orthogonal to the first direction, and at least one of the plurality of first capacitance devices being disposed so as to overlap a different first capacitance device partially when viewed in the second direction from the plurality of bipolar transistors; and
a plurality of resistive devices that are provided corresponding to the respective base electrodes of the plurality of bipolar transistors, each of the plurality of resistive devices having a first end and a second end, the first end being connected to the corresponding base electrode, the second end being supplied with a bias.