KR970042424A - High dielectric constant ceramic dielectric composition for low temperature sintering - Google Patents

High dielectric constant ceramic dielectric composition for low temperature sintering Download PDF

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Publication number
KR970042424A
KR970042424A KR1019950052733A KR19950052733A KR970042424A KR 970042424 A KR970042424 A KR 970042424A KR 1019950052733 A KR1019950052733 A KR 1019950052733A KR 19950052733 A KR19950052733 A KR 19950052733A KR 970042424 A KR970042424 A KR 970042424A
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South Korea
Prior art keywords
dielectric
low temperature
composition
dielectric constant
temperature sintering
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KR1019950052733A
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Korean (ko)
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KR0145120B1 (en
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석인식
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정종순
주식회사 금강
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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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C04B2235/3234—Titanates, not containing zirconia
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C04B2235/3248—Zirconates or hafnates, e.g. zircon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
    • C04B2235/3255—Niobates or tantalates, e.g. silver niobate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • C04B2235/3267—MnO2
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

본 발명은 1130℃이하에서 소결 가능하고, 미국 EIA에서 정한 Y5V 규격특성을 만족시키는 동시에 높은 유전율을 갖고, 절연 저항과 절연 파괴 전압도 높은 저온 소결용 고유전율계 적층 세라믹 콘덴서 제조용 유전체 조성물에 관한 것이다.The present invention relates to a dielectric composition for the manufacture of a high-k sintered multilayer ceramic capacitor for low temperature sintering capable of sintering at 1130 ° C. or lower, satisfying the Y5V standard characteristics defined by the US EIA, and having a high dielectric constant and high insulation resistance and high dielectric breakdown voltage. .

최근의 제품의 소형화와 고용량화에 대응하기 위하여 정전 용량을 높히기 위해 높은 유전율을 갖는 유전체를 사용하고 유전체 두께를 얇게 하며, 고신뢰성의 적층 세라믹 콘덴서를 제조하기 위해서 소결후 유전체의 결정립이 미세하고 치밀하며 높은 절연저항과 높은 절연 파괴 전압을 갖는 유전체의 개발이 필수적이다.In order to cope with the recent miniaturization and high capacity, the dielectric having high dielectric constant is used to increase the capacitance, the dielectric thickness is thin, and the grain of the dielectric is fine and dense after sintering to manufacture a highly reliable multilayer ceramic capacitor. The development of dielectrics with high insulation resistance and high dielectric breakdown voltage is essential.

본 발명의 세라믹 유전체 조성물을 적층 세라믹 콘덴서에 이용하면 유전체 층의 두께를 얇게할 수 있어 원가 절감의 효과가 클 뿐 아니라, 소형화 및 고용량화에 대응할 수 있는 고신뢰성의 제품을 생산할 수 있다.When the ceramic dielectric composition of the present invention is used in a multilayer ceramic capacitor, the thickness of the dielectric layer can be reduced, so that the cost reduction effect is large, and a high reliability product capable of coping with miniaturization and high capacity can be produced.

Description

저온 소결용 고유전율체 세라믹 유전체 조성물High-k dielectric ceramic dielectric composition for low temperature sintering

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

1) BaTiO381.70∼85.80몰%, BaZrO38.30∼10.30몰% 및 SrTiO34.00∼10.00몰%로 이루어진 조성물 96.95∼98.65중량%와; 2) CuO 70.0∼75.0몰%, Li2B4O714.0∼18.0몰% 및 Bi2O310.0∼13.0몰%로 이루어진 소결 융제 조성물 1.0∼2.5중량%와; 3) Nd2O30.20∼0.8중량% 및; 4) MnO20.15∼0.30중량%로 구성됨을 특징으로 하는 저온 소결용 고유전율계 세라믹 유전체 조성물.1) BaTiO 3 81.70~85.80 mol%, BaZrO 3 8.30~10.30 mol% of SrTiO 3 and 4.00~10.00 composition from 96.95 to 98.65% by weight consisting of mol%; 2) 1.0 to 2.5% by weight of a sintered flux composition consisting of 70.0 to 75.0 mol% of CuO, 14.0 to 18.0 mol% of Li 2 B 4 O 7, and 10.0 to 13.0 mol% of Bi 2 O 3 ; 3) 0.20 to 0.8 wt% of Nd 2 O 3 ; 4) High dielectric constant ceramic dielectric composition for low temperature sintering characterized in that the MnO 2 0.15 ~ 0.30% by weight.
KR1019950052733A 1995-12-20 1995-12-20 Clielectric ceramic compositims KR0145120B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950052733A KR0145120B1 (en) 1995-12-20 1995-12-20 Clielectric ceramic compositims

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950052733A KR0145120B1 (en) 1995-12-20 1995-12-20 Clielectric ceramic compositims

Publications (2)

Publication Number Publication Date
KR970042424A true KR970042424A (en) 1997-07-24
KR0145120B1 KR0145120B1 (en) 1998-07-15

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Application Number Title Priority Date Filing Date
KR1019950052733A KR0145120B1 (en) 1995-12-20 1995-12-20 Clielectric ceramic compositims

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KR0145120B1 (en) 1998-07-15

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