Multilayer electronic component and board having the same
First Claim
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1. A multilayer electronic component comprising:
- a ceramic body comprising stacked dielectric layers, each layer extending in a first direction and a second direction orthogonal to the first direction, stacked in a third direction orthogonal to the first direction and the second direction, to form a first capacitor part stacked in the third direction on a second capacitor part, wherein a buffer layer separates the first capacitor part from the second capacitor part;
a voltage control terminal formed on a lateral surface on a first end of the ceramic body in the first direction;
an input terminal disposed on another lateral surface on an opposite end of the ceramic body in the first direction, and corresponding to the first capacitor part; and
an output terminal disposed on the other lateral surface on the opposite end of the ceramic body, corresponding to the second capacitor part, and separated from the input terminal in the third direction by a thickness of the buffer layer,wherein the first capacitor part comprises first and second internal electrodes disposed on the dielectric layers, the first internal electrodes are electrically connected to the voltage control terminal, and the second internal electrodes are electrically connected to the input terminal,wherein the second capacitor part comprises third and fourth internal electrodes disposed on the dielectric layers, the third internal electrodes are electrically connected to the voltage control terminal, and the fourth internal electrodes are electrically connected to the output terminal, andwherein the first and second internal electrodes have constant capacitance, and the third and fourth internal electrodes have variable capacitance.
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Abstract
A multilayer electronic component includes a ceramic body having stacked dielectric layers to form a first capacitor part and a second capacitor part, wherein the first capacitor has a constant capacitance, and the second capacitor part has a variable capacitance; a voltage control terminal formed on a lateral surface of the ceramic body; an input terminal disposed on another lateral surface of the ceramic body corresponding to the first capacitor part; and an output terminal disposed on the other lateral surface of the ceramic body corresponding to the second capacitor part separate from the input terminal.
17 Citations
15 Claims
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1. A multilayer electronic component comprising:
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a ceramic body comprising stacked dielectric layers, each layer extending in a first direction and a second direction orthogonal to the first direction, stacked in a third direction orthogonal to the first direction and the second direction, to form a first capacitor part stacked in the third direction on a second capacitor part, wherein a buffer layer separates the first capacitor part from the second capacitor part; a voltage control terminal formed on a lateral surface on a first end of the ceramic body in the first direction; an input terminal disposed on another lateral surface on an opposite end of the ceramic body in the first direction, and corresponding to the first capacitor part; and an output terminal disposed on the other lateral surface on the opposite end of the ceramic body, corresponding to the second capacitor part, and separated from the input terminal in the third direction by a thickness of the buffer layer, wherein the first capacitor part comprises first and second internal electrodes disposed on the dielectric layers, the first internal electrodes are electrically connected to the voltage control terminal, and the second internal electrodes are electrically connected to the input terminal, wherein the second capacitor part comprises third and fourth internal electrodes disposed on the dielectric layers, the third internal electrodes are electrically connected to the voltage control terminal, and the fourth internal electrodes are electrically connected to the output terminal, and wherein the first and second internal electrodes have constant capacitance, and the third and fourth internal electrodes have variable capacitance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A board having a multilayer electronic component, the board comprising:
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a circuit board; first and second electrode pads disposed on the circuit board at a predetermined interval; and a multilayer electronic component comprising; a ceramic body comprising stacked dielectric layers, each layer extending in a first direction and a second direction orthogonal to the first direction, stacked in a third direction orthogonal to the first direction and the second direction, to form a first capacitor part stacked in the third direction on a second capacitor part, wherein a buffer layer separates the first capacitor part from the second capacitor part; a voltage control terminal formed on a lateral surface on a first end of the ceramic body in the first direction; an input terminal disposed on another lateral surface on an opposite end of the ceramic body in the first direction and corresponding to the first capacitor part; and an output terminal disposed on the other lateral surface on the opposite end of the ceramic body, corresponding to the second capacitor part, and separated from the input terminal in the third direction by a thickness of the buffer layer, wherein the first capacitor part comprises first and second internal electrodes disposed on the dielectric layers, wherein the first internal electrodes are electrically connected to the voltage control terminal and the second internal electrodes are electrically connected to the input terminal, wherein the second capacitor part comprises third and fourth internal electrodes disposed on the dielectric layers, wherein the third internal electrodes are electrically connected to the voltage control terminal and the fourth internal electrodes are electrically connected to the output terminal, wherein the first capacitor part has constant capacitance, and the second capacitor part has variable capacitance, and wherein the multilayer electronic component is mounted on the circuit board connecting the voltage control terminal and the output terminal to the first and second electrode pads, respectively. - View Dependent Claims (11, 12, 13)
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14. A multilayer electronic component comprising:
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a ceramic body comprising planar dielectric layers and planar electrode layers alternating in a stacking direction, and a planar buffer layer, each of the planar layers extending in a first direction and a second direction, and the stacking direction is orthogonal to the first direction and the second direction; a voltage control terminal on a first lateral end surface of the ceramic body in the first direction, an input terminal disposed on a first portion of a second lateral end surface of the ceramic body opposite to the first lateral end surface in the first direction; and an output terminal disposed on a second portion of the second lateral end surface of the ceramic body and separate from the input terminal, wherein the planar electrode layers comprise terminal electrodes interleaved alternately with control electrodes in the stacking direction, the control electrodes are connected to the voltage control terminal, the terminal electrodes comprise input electrodes and output electrodes, the input electrodes are connected to the input terminal, the output electrodes are connected to the output terminal, and the first portion and the second portion of the second lateral end surface are separated from each other in the third direction by a thickness of the buffer layer, and wherein the planar electrode layers of the first portion have constant capacitance, and the planar electrode layers of the second portion have variable capacitance. - View Dependent Claims (15)
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Specification
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Current AssigneeSamsung Electro-Mechanics Co., Ltd. (Samsung Group)
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Original AssigneeSamsung Electro-Mechanics Co., Ltd. (Samsung Group)
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InventorsJeong, In Wha, Sung, Jae Suk, Kim, Hugh
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Primary Examiner(s)Tso, Stanley
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Application NumberUS16/003,222Publication NumberTime in Patent Office508 DaysField of Search174260US Class CurrentCPC Class CodesH01G 15/00 Structural combinations of ...H01G 2/06 specially adapted for mount...H01G 4/012 Form of non-self-supporting...H01G 4/232 electrically connecting two...H01G 4/30 Stacked capacitors H01G4/33...H01G 7/06 having a dielectric selecte...H05K 1/18 Printed circuits structural...
