The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2024
Filed:
Dec. 14, 2021
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Takayuki Tsutsui, Nagaokakyo, JP;
Masao Kondo, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A power amplifier comprising a first member and a second member including a compound semiconductor region joined to a first face of the first member including a semiconductor region. The second member includes an amplifier circuit including a compound semiconductor element, and multiple clamp diodes connected in multiple stages and between an output port of the amplifier circuit and ground. The first member includes a switch, connected between an extension point, which is a middle point of the multiple clamp diodes and the ground, a temperature sensor, and a switch control circuit which performs on-off control of the switch based on a result of measurement by the temperature sensor. The extension point is connected to the switch via a path including an inter-member connection wire on an interlayer insulating film from the first face of the first member to a surface of the second member.