LC oscillator
AssigneeNiigata Seimitsu Co., Ltd.
InventorsAkira Okamoto, Takeshi Ikeda
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Abstract
An LC oscillator capable of oscillating even if it is fabricated on a substrate comprises a transistor, capacitor, and an inductor element 30. The inductor element 30 has two spiral conductors 120, 122 having substantially the same shape and formed on a semiconductor substrate 110. The inner end of the conductor 120 is electrically connected to the outer end of the conductor 122. Lead wires 130, 132 are connected to the outer and inner ends of the conductor 120 respectively. The lead wire 132 is passed through the lower conductor 122 and the semiconductor substrate 110 and led outside. The upper A conductor 120 serves as an inductor conductor and is connected to another component of the LC oscillator formed on the semiconductor substrate 110 through the lead wires 130, 132.
Claims26
An LC oscillator using an inductor element formed on a substrate, characterized in that the inductor element has two conductors that are formed in piles on the substrate in the state where they are mutually insulated, and are connected at both odd ends, and wherein one of the conductors apart from the substrate is used as an inductor conductor, and a lead wire of this inductor conductor is located so as to pass between another one of the conductors, being near the substrate, and the substrate.
An LC oscillator using an inductor element formed on a substrate, characterized in that the inductor element has two conductors that are formed in piles on the substrate in the state where they are mutually insulated, and are mutually connected at both odd ends, and wherein one of the conductors apart from the substrate is used as an inductor conductor, and further, an end that is an end of another one of the conductors and is not connected to the inductor conductor is terminated with a predetermined impedance element.
Dependencies are inferred from the claim text.