KR102584976B1 - 박막 커패시터 - Google Patents
박막 커패시터 Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title claims description 38
- 239000010409 thin film Substances 0.000 title claims description 32
- 239000000758 substrate Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- 239000010949 copper Substances 0.000 description 8
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- 229910052697 platinum Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
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- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
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- 229920002120 photoresistant polymer Polymers 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors (thin- or thick-film circuits; capacitors without a potential-jump or surface barrier specially adapted for integrated circuits, details thereof, multistep manufacturing processes therefor)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
- H01G4/1227—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates based on alkaline earth titanates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
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- H01G4/30—Stacked capacitors
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- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
- H01G4/306—Stacked capacitors made by thin film techniques
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/162—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed capacitors
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- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
- H10D1/714—Electrodes having non-planar surfaces, e.g. formed by texturisation having horizontal extensions
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
- H10D1/716—Electrodes having non-planar surfaces, e.g. formed by texturisation having vertical extensions
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Abstract
Description
도 2는 도 1의 Ⅰ-Ⅰ' 방향의 절단면을 개략적으로 도시한 것으로, 본 발명의 일 실시 예에 따른 박막 커패시터의 단면도를 개략적으로 나타낸 것이다.
도 3 및 4는 도 2의 A부분의 확대도를 나타난 것이다.
도 5는 본 발명의 다른 실시예에 따른 박막 커패시터의 확대 단면도를 나타낸 것이다.
구분 | 제1 및 제2 내부전극 각 층수 | 비아 단면의 형상 | 정전용량 (Cap;nF) |
내부전극의 유효면적 (mm2) |
정전 용량변화 (△Cap;%) |
내부전극의 유효면적 변화(%) |
비교예 1 | 3 | 다단 | 82.03 | 2.69 | - | - |
실시예 1 | 사각형 교차 | 82.58 | 2.70 | 0.67 | 0.67 | |
비교예 2 | 6 | 다단 | 167.20 | 5.47 | - | - |
실시예 2 | 사각형 교차 | 185.74 | 6.08 | 11.08 | 11.08 |
20; 바디
21, 22, 121, 122: 제1 및 제2 내부전극
23, 123: 유전체층
31, 32, 131, 132: 제1 및 제2 비아
41, 42, 141, 142: 제1 및 제2 외부전극
Claims (10)
- 기판 상에 제1 및 제2 내부전극과 유전체층이 교대로 적층되어 이루어진 바디; 및
상기 바디 내에 배치되며, 상기 제1 내부전극과 전기적으로 연결된 복수의 제1 비아 및 상기 제2 내부전극과 전기적으로 연결되며 상기 제1 비아와 교대로 배치된 복수의 제2 비아;를 포함하며,
상기 제1 및 제2 비아의 단면은 상기 적층 방향에서의 중심부를 기준으로 좌우 교대로 배치된 두 영역을 포함한 형상을 갖는 박막 커패시터.
- 제1항에 있어서,
상기 제1 비아의 단면은 제1 및 제2 영역을, 상기 제2 비아의 단면은 제3 및 제4 영역을 포함하며,
상기 제1 및 제3 영역은 상기 제1 및 제2 비아의 중심부의 일측에 각각 배치되며, 상기 제2 및 제4 영역은 상기 제1 및 제2 비아의 중심부의 타측에 각각 배치되되 상기 제1 및 제3 영역의 대각선 방향으로 이격된 박막 커패시터.
- 제1항에 있어서,
상기 제1 및 제2 비아와 접하는 최하층의 제1 및 제2 내부전극의 면적은 상기 제1 및 제2 비아와 접하는 최상층의 제1 및 제2 내부전극의 면적과 동일한 박막 커패시터.
- 제1항에 있어서,
상기 제1 및 제2 비아의 상면은 사각형 형상인 박막 커패시터.
- 제1항에 있어서,
상기 제1 및 제2 내부전극은 상기 제1 및 제2 비아의 하나의 노출면과 접하는 박막 커패시터.
- 제1항에 있어서,
상기 제1 및 제2 비아는 복수 개로 형성된 박막 커패시터.
- 기판 상에 복수의 유전체층과 제1 및 제2 내부전극이 교대로 적층되어 이루어진 바디; 및
상기 바디 내에는 배치된 복수의 제1 및 제2 비아;를 포함하며,
상기 제1 비아는 제1 내부전극과 전기적으로 연결되며, 상기 바디의 일면에서 상기 기판에 인접한 최하층 제1 내부전극까지 관통하고, 상기 제2 비아는 제2 내부전극과 전기적으로 연결되며, 상기 바디의 일면에서 상기 기판에 인접한 최하층 제2 내부전극까지 관통하며,
상기 제1 및 제2 비아의 단면은 상기 적층 방향에서의 중심부를 기준으로 좌우 교대로 배치된 두 영역을 포함한 형상을 갖는 박막 커패시터.
- 제7항에 있어서,
상기 제1 비아의 단면은 제1 및 제2 영역을, 상기 제2 비아의 단면은 제3 및 제4 영역을 포함하며,
상기 제1 및 제3 영역은 상기 제1 및 제2 비아의 중심부의 일측에 각각 배치되며, 상기 제2 및 제4 영역은 상기 제1 및 제2 비아의 중심부의 타측에 각각 배치되되 상기 제1 및 제3 영역의 대각선 방향으로 이격된 박막 커패시터.
- 제7항에 있어서,
상기 제1 및 제2 비아와 접하는 최하층의 제1 및 제2 내부전극의 면적은 상기 제1 및 제2 비아와 접하는 최상층의 제1 및 제2 내부전극의 면적과 동일한 박막 커패시터.
- 제7항에 있어서,
상기 제1 및 제2 내부전극은 상기 제1 및 제2 비아의 하나의 노출면과 접하는 박막 커패시터.
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US15/432,189 US10079109B2 (en) | 2016-07-28 | 2017-02-14 | Thin film capacitor |
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JP2010258406A (ja) | 2009-03-31 | 2010-11-11 | Tdk Corp | 薄膜コンデンサの製造方法及び薄膜コンデンサ |
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JP2005117004A (ja) | 2003-10-08 | 2005-04-28 | Ngk Spark Plug Co Ltd | 積層セラミックコンデンサ、積層コンデンサ、および積層コンデンサの製造方法 |
JP2010258406A (ja) | 2009-03-31 | 2010-11-11 | Tdk Corp | 薄膜コンデンサの製造方法及び薄膜コンデンサ |
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US10079109B2 (en) | 2018-09-18 |
US20180033559A1 (en) | 2018-02-01 |
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