Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Miori Hiraiwa

Shuichi Nagai

Satoshi Shibata

Akihiko Sagara

In a signal generating circuit, a power supply terminal is connected with first terminals of a first switching element, a second switching element, and a third switching element; second terminals of the second switching element and the third switching element are connected to each other at a first node; the first node is connected with a ground and a first input terminal; a conduction control terminal of the third switching element is connected with the power supply terminal and the first terminal of the first switching element; a second terminal of the first switching element is connected with the first node; the second input terminal is connected with conduction control terminals of the first switching element and the second switching element; a first output terminal is connected with a second node; a second output terminal is connected with a third node; a first high-frequency cutoff element is connected with the power supply terminal and the second node; and a second high-frequency cutoff element is connected with the power supply terminal and the third node.

Signal generating circuit

To provide a method of manufacturing an infrared light-emitting element having a wavelength of 1.57 &#x3bc;m, including: forming a SiOfilm on a Si substrate containing C; and performing RTA treatment in an atmosphere containing oxygen, or implanting impurity ions therein and thereafter performing RTA treatment in an atmosphere containing oxygen, thereby forming C centers.

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Osaka, Japan

Miori Hiraiwa