KR20020076697A - Multi Layer Ceramic Capacitor - Google Patents

Multi Layer Ceramic Capacitor Download PDF

Info

Publication number
KR20020076697A
KR20020076697A KR1020010016763A KR20010016763A KR20020076697A KR 20020076697 A KR20020076697 A KR 20020076697A KR 1020010016763 A KR1020010016763 A KR 1020010016763A KR 20010016763 A KR20010016763 A KR 20010016763A KR 20020076697 A KR20020076697 A KR 20020076697A
Authority
KR
South Korea
Prior art keywords
ceramic capacitor
low dielectric
multilayer ceramic
thickness
electrode
Prior art date
Application number
KR1020010016763A
Other languages
Korean (ko)
Inventor
이철
Original Assignee
파츠닉(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 파츠닉(주) filed Critical 파츠닉(주)
Priority to KR1020010016763A priority Critical patent/KR20020076697A/en
Publication of KR20020076697A publication Critical patent/KR20020076697A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/30—Stacked capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/06—Solid dielectrics
    • H01G4/08—Inorganic dielectrics
    • H01G4/12—Ceramic dielectrics

Abstract

PURPOSE: A multi-layer ceramic capacitor is provided to obtain capacitance of high capacity such as a high dielectric by thickening the thickness of a multi-layer ceramic capacitor and using a low dielectric as an insulating material between electrodes. CONSTITUTION: A stacked ceramic capacitor(100) is formed with a low dielectric(110), an inner electrode(120), and an outer electrode(130). The low dielectric(110) is formed by a dielectric material having a low dielectric constant. The inner electrode(120) is formed at an inside of the low dielectric(110). The outer electrode(130) is connected to the outside of the low dielectric(110). The thickness of the stacked ceramic capacitor(100) is 1.25T or more. The low dielectric(110) is used as an insulating material between electrodes.

Description

적층 세라믹커패시터{Multi Layer Ceramic Capacitor}Multilayer Ceramic Capacitor

본 발명은 적층 세라믹커패시터(MLCC)에 관한 것으로, 더욱 상세하게는 두께를 더 두껍게 한 후 전극간 절연재로 저유전체를 사용하여 고유전체와 같은 고용량의 커패시턴스가 구현되도록 함으로써 마이크로포니(microphony) 현상을 감쇄시키거나 제거시키도록 한 적층 세라믹커패시터에 관한 것이다.The present invention relates to a multilayer ceramic capacitor (MLCC), and more particularly, to increase the thickness and then to realize a high-capacitance capacitance such as a high dielectric material by using a low dielectric material as an inter-electrode insulating material. A multilayer ceramic capacitor is provided for attenuating or removing.

주파수동기(FS; Frequency Synthesize) 동조방식에 사용되는 튜너에서는 필연적으로 위상동기루프(PLL; Phase Locked Loop) IC와 동조전압(VT; Voltage Tuning)을 공급하기 위해 루프필터(loop filter) 회로를 사용한다.Tuners used in the Frequency Synthesize (FS) tuning method inevitably use a loop filter circuit to supply a phase locked loop (PLL) IC and a voltage tuning (VT). do.

상기 루프필터회로에서는 고용량의 커패시턴스(capacitance)를 적층 세라믹커패시터(MLCC; Multi Layer Ceramic Capacitor)로 구현한다.In the loop filter circuit, a high capacitance capacitance is implemented as a multilayer ceramic capacitor (MLCC).

이러한 적층 세라믹커패시터는 유전체 세라믹 시트(sheet)를 다수개의 층으로 적층시킨 것으로, 종래의 적층 세라믹커패시터(1)는 도 1에 나타낸 바와 같이 고유전율의 물질로 이루어진 고유전체(10)와, 상기 고유전체(10)의 내측에 형성된 내부전극(20)과, 상기 고유전체(10)의 외측에 연결된 외부전극(30)으로 구성된다.The multilayer ceramic capacitor is formed by stacking a dielectric ceramic sheet into a plurality of layers. The conventional multilayer ceramic capacitor 1 has a high dielectric constant 10 made of a material having a high dielectric constant as shown in FIG. It consists of an internal electrode 20 formed inside the whole 10, and an external electrode 30 connected to the outside of the high-k dielectric 10.

이때, 상기 적층 세라믹커패시터(1)의 두께(t)는 통상적으로 0.75∼1.0t로 형성된다.At this time, the thickness t of the multilayer ceramic capacitor 1 is typically formed in the range of 0.75 to 1.0t.

또한, 상기 고유전체(10)는 전극간 절연재로 사용되는데, 물리적으로 압전기효과(piezo effect)에 민감한 특성을 지니고 있다.In addition, the high dielectric material 10 is used as an inter-electrode insulating material, and has a property that is physically sensitive to the piezo effect (piezo effect).

그런데, 상기와 같은 종래의 적층 세라믹커패시터(MLCC)는 형성되는 두께가 얇고 전극간 절연재로 고유전체를 사용하기 때문에 진동이나 떨림에 약한 특성을 나타내어 특정 주파수대역의 음향이 텔레비전 내에서 공명을 일으키는 경우 화상이 흔들리는 마이크로포니(microphony) 현상을 유발시키는 문제점이 있었다.However, the conventional multilayer ceramic capacitor (MLCC) as described above is thin in thickness and uses a high dielectric material as an inter-electrode insulating material, and thus exhibits weak characteristics against vibration and vibration, so that sound in a specific frequency band causes resonance in a television. There was a problem of causing an image shaking microphony (microphony) phenomenon.

본 발명은 상기와 같은 문제점을 해결하기 위하여 제안된 것으로서, 그 목적으로 하는 바는 적층 세라믹커패시터(MLCC)의 형성되는 두께를 더 두껍게 한 후 전극간 절연재로 저유전체를 사용하여 고유전체와 같은 고용량의 커패시턴스를 구현할 수 있도록 함으로써 압전기효과에 대한 반응이 저감될 수 있도록 할 뿐만 아니라 마이크로포니 현상을 감쇄시키거나 제거시키도록 하는데 있다.The present invention has been proposed to solve the above problems, and the object of the present invention is to increase the thickness of the multilayer ceramic capacitor (MLCC) to be thicker, and then use a low dielectric material as an inter-electrode insulating material to obtain a high capacity such as a high dielectric material. It is possible to reduce the response to the piezoelectric effect as well as to reduce or eliminate the microphony phenomenon by enabling the capacitance of.

도 1은 종래기술에 따른 적층 세라믹커패시터를 나타내는 단면도이다.1 is a cross-sectional view showing a multilayer ceramic capacitor according to the prior art.

도 2는 본 발명에 따른 적층 세라믹커패시터를 나타내는 단면도이다.2 is a cross-sectional view showing a multilayer ceramic capacitor according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

100: 적층 세라믹커패시터 110: 저유전체100: laminated ceramic capacitor 110: low dielectric

120: 내부전극 130: 외부전극120: internal electrode 130: external electrode

T : 두께T: thickness

상기와 같은 목적을 달성하기 위한 본 발명은 일정한 두께를 갖으며 내부전극 및 외부전극을 형성한 적층 세라믹커패시터에 있어서, 상기 두께는 1.25T 이상으로 형성되게 하고, 전극간 절연재로 저유전체를 사용하여 고용량의 커패시턴스를 구현하도록 하는 것을 그 기본 특징으로 한다.The present invention for achieving the above object is a multilayer ceramic capacitor having a predetermined thickness and formed the internal electrode and the external electrode, the thickness is formed to be 1.25T or more, using a low dielectric as an inter-electrode insulating material Its basic feature is to enable high capacitance capacitance.

위와 같이 구성된 본 발명의 바람직한 실시예를 도면을 참조하면서 상세히 설명하면 다음과 같다.Referring to the preferred embodiment of the present invention configured as described above in detail with reference to the drawings as follows.

도 2는 본 발명에 따른 적층 세라믹커패시터를 나타내는 단면도이다.2 is a cross-sectional view showing a multilayer ceramic capacitor according to the present invention.

도 2에 나타낸 바와 같이, 본 발명에 따른 적층 세라믹커패시터(100)는 저유전율의 물질로 이루어진 저유전체(110)와, 상기 저유전체(110)의 내측에 형성된 내부전극(120)과, 상기 저유전체(110)의 외측에 연결된 외부전극(130)으로 구성된다.As shown in FIG. 2, the multilayer ceramic capacitor 100 according to the present invention includes a low dielectric material 110 formed of a material having a low dielectric constant, an internal electrode 120 formed inside the low dielectric material 110, and the low dielectric constant. The external electrode 130 is connected to the outside of the dielectric 110.

이때, 상기 적층 세라믹커패시터(100)의 두께(T)는 1.25T 이상으로 형성되게 한다.In this case, the thickness T of the multilayer ceramic capacitor 100 is formed to be 1.25T or more.

또한, 상기 저유전체(110)는 전극간 절연재의 작용을 하게 된다.In addition, the low dielectric 110 serves as an inter-electrode insulating material.

따라서, 상기와 같은 본 발명에 따른 적층 세라믹커패시터(100)는 두께(T)를 더 뚜껍게 하고 전극간 절연재로 압전기효과에 덜 민감한 저유전체(110)를 사용함으로써 저유전체(110)로 고유전체를 사용했을 때와 같은 고용량의 커패시턴스를 구현할 수 있게 됨은 물론 마이크로포니 현상이 감쇄되거나 제거된다.Therefore, the multilayer ceramic capacitor 100 according to the present invention as described above has a high dielectric constant as the low dielectric material 110 by using a low dielectric material 110 that is thicker in thickness T and less sensitive to piezoelectric effects as an inter-electrode insulating material. The same high-capacitance capacitance as in the case of using the above can be realized, and the microphony phenomenon is attenuated or eliminated.

이상에서 살펴본 바와 같이 본 발명에 따른 적층 세라믹커패시터에 의하면, 적층 세라믹커패시터의 형성되는 두께를 더 두껍게 한 후 전극간 절연재로 저유전체를 사용함으로써 저유전체로도 고유전체와 같은 고용량의 커패시턴스를 구현할 수 있게 되어 압전기효과에 대한 반응이 저감될 뿐만 아니라 마이크로포니 현상이 감쇄되거나 제거되어 텔레비전의 수상 성능을 안정되게 하는 탁월한 효과가 있다.As described above, according to the multilayer ceramic capacitor according to the present invention, by increasing the thickness of the multilayer ceramic capacitor to be formed and using a low dielectric material as an inter-electrode insulating material, a high capacitance such as a high dielectric material can be realized even with a low dielectric material. In addition, the response to the piezoelectric effect is reduced, as well as the microphony phenomenon is attenuated or eliminated to have an excellent effect of stabilizing the water quality of the television.

Claims (1)

일정한 두께(T)를 갖으며 내부전극(120) 및 외부전극(130)을 형성한 적층 세라믹커패시터(100)에 있어서,In the multilayer ceramic capacitor 100 having a predetermined thickness T and forming the internal electrode 120 and the external electrode 130, 상기 두께(T)는 1.25T 이상으로 형성되게 하고, 전극간 절연재로 저유전체(110)를 사용하여 고용량의 커패시턴스를 구현하도록 하는 것을 특징으로 하는 적층 세라믹커패시터.The thickness (T) is formed to be 1.25T or more, multilayer ceramic capacitors, characterized in that to implement a high capacitance by using a low dielectric material 110 as an inter-electrode insulating material.
KR1020010016763A 2001-03-30 2001-03-30 Multi Layer Ceramic Capacitor KR20020076697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010016763A KR20020076697A (en) 2001-03-30 2001-03-30 Multi Layer Ceramic Capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010016763A KR20020076697A (en) 2001-03-30 2001-03-30 Multi Layer Ceramic Capacitor

Publications (1)

Publication Number Publication Date
KR20020076697A true KR20020076697A (en) 2002-10-11

Family

ID=27699267

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020010016763A KR20020076697A (en) 2001-03-30 2001-03-30 Multi Layer Ceramic Capacitor

Country Status (1)

Country Link
KR (1) KR20020076697A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980080464A (en) * 1997-03-19 1998-11-25 무라따미치히로 Multilayer capacitors
JPH1167573A (en) * 1997-08-26 1999-03-09 Kyocera Corp Laminated ceramic capacitor and its manufacture
KR20000003052A (en) * 1998-06-25 2000-01-15 이형도 External electrode forming of chip component
KR20010015337A (en) * 1999-07-15 2001-02-26 무라타 야스타카 Electronic Multilayer Ceramic Component

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980080464A (en) * 1997-03-19 1998-11-25 무라따미치히로 Multilayer capacitors
JPH1167573A (en) * 1997-08-26 1999-03-09 Kyocera Corp Laminated ceramic capacitor and its manufacture
KR20000003052A (en) * 1998-06-25 2000-01-15 이형도 External electrode forming of chip component
KR20010015337A (en) * 1999-07-15 2001-02-26 무라타 야스타카 Electronic Multilayer Ceramic Component

Similar Documents

Publication Publication Date Title
JP6721150B2 (en) Multilayer capacitor, substrate on which multilayer capacitor is mounted
US10229790B2 (en) Composite electronic component and board having the same
US11094461B2 (en) Composite electronic component and board having the same
US20080158777A1 (en) Capacitor and multi-layer board embedding the capacitor
US20130279068A1 (en) Capacitors Adapted for Acoustic Resonance Cancellation
US5043681A (en) Voltage controlled oscillator including a saw resonator
KR20190053693A (en) 3-termibal multi-layered capacitor
US6538361B2 (en) Piezoelectric oscillator
US10629374B2 (en) Composite electronic component and board having the same
JP2017199895A (en) Capacitor component
KR20020076697A (en) Multi Layer Ceramic Capacitor
JPH046911A (en) High frequency filter
US20200105474A1 (en) Composite electronic component
JPH05167374A (en) High frequency filter
US6744184B2 (en) Piezoelectric resonator
KR100697851B1 (en) A thickness shear mode vibrator and resonator thereby
US7495886B2 (en) Dampening of electric field-induced resonance in parallel plate capacitors
US11322306B2 (en) Composite electronic component
KR100475996B1 (en) Oscillator and production method thereof
US20220294407A1 (en) Multilayer filter device
JP2010192466A (en) Wide band capacitance element
KR20000054992A (en) Stacked chip lc filter
JPH0766077A (en) Laminated electronic component
KR20210063716A (en) Composite electronic component
JPH0923066A (en) Built-in capacitor substrate

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application