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US 5,966,052 AGranted
Voltage-controlled oscillator with input and output on opposite corners of substrate
AssigneeMurata Manufacturing Co., Ltd.
InventorKen Sakai
Life of this patent
Estimating the term…
Abstract
Four generally quadrant-like indentations are formed at the corners of a substrate. A conductive member is applied to the inner surfaces of the indentations to form input and output terminals, namely a power voltage terminal, a voltage control terminal, a modulation terminal, and an output terminal. By placing these terminals at the corners of the substrate, sufficient distances are provided between the input terminals and the output terminals so as to prevent interference between these terminals.
Claims20
An electrical circuit comprising:
- a substrate having side faces which are joined at corners;
- a plurality of indentations formed in said side faces;
- a circuit device and a wiring section provided on a first main surface of said substrate;
- a ground electrode formed on another main surface of said substrate;
- terminals formed by applying a conductive member to said plurality of indentations;
- and
- a metal case provided on the first main surface of said substrate to cover the first main surface,
- wherein at least one of said plurality of indentations is a corner indentation which is disposed at a corner of said substrate;
- and
- wherein a terminal formed at said at least one indentation disposed at the corner of said substrate serves as one of:
- an input terminal and an output terminal.
8 more elements
A manufacturing method for an electrical device comprising the steps of:
- providing, on a surface of a motherboard to be divided into a plurality of substrates by cutting, a circuit device and a wiring section for each respective substrate;
- making through holes on boundaries which partition the motherboard into the substrates and at the intersections of the boundaries, and applying a conductive member to the through holes;
- cutting the motherboard along the boundaries to thereby form an indentation and a terminal at each corner and at each side face of the plurality of the substrates;
- and
- mounting a metal case for covering a main surface of each respective substrate.
2 more elements
Dependencies are inferred from the claim text.