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.

Date of Patent:
Jul. 04, 2017

Filed:

Aug. 31, 2015
Applicant:

Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Naoki Itabashi, Yokohama, JP;

Taizo Tatsumi, Yokohama, JP;

Masataka Watanabe, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/60 (2006.01); H01L 21/288 (2006.01); H03F 3/45 (2006.01); H03F 1/02 (2006.01); H03F 1/07 (2006.01);
U.S. Cl.
CPC ...
H01L 21/2885 (2013.01); H03F 3/45475 (2013.01); H03F 3/607 (2013.01); H03F 1/0288 (2013.01); H03F 1/07 (2013.01); H03F 3/60 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45138 (2013.01);
Abstract

A traveling-wave amplifier includes a plurality of amplifier cells, an insulating layer, an input line, and an output line. The plurality of amplifier cells is provided on a semiconductor substrate. Each of the amplifier cells receives an input signal and generates a part of an output signal from the input signal. The insulating layer is provided on the semiconductor substrate. The input line is used to externally receive an input signal and to transmit the input signal to the amplifier cells respectively. The output line is used to transmit the output signal generated by the amplifier cells and to externally output the output signal. The thickness of the input line is smaller than the thickness of the output line, and the input line and the output line are provided on the same insulating layer.


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