KR100631995B1 - 저온 소성용 유전체 자기조성물 및 이를 이용한 적층세라믹 콘덴서 - Google Patents
저온 소성용 유전체 자기조성물 및 이를 이용한 적층세라믹 콘덴서 Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims abstract description 59
- 239000000919 ceramic Substances 0.000 title claims abstract description 30
- 238000009766 low-temperature sintering Methods 0.000 title abstract 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 7
- 239000003985 ceramic capacitor Substances 0.000 claims description 40
- 239000000843 powder Substances 0.000 claims description 37
- 238000005245 sintering Methods 0.000 claims description 27
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 11
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 3
- 238000003980 solgel method Methods 0.000 claims description 3
- 150000004703 alkoxides Chemical class 0.000 claims description 2
- 239000007790 solid phase Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000009467 reduction Effects 0.000 abstract description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 32
- 238000009413 insulation Methods 0.000 description 11
- 230000003247 decreasing effect Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000010304 firing Methods 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- -1 Rare earth compounds Chemical class 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
Description
(Ba1-xCax)mTiO3 분말 (BT 분말) | x | m | 평균 입경(nm) |
A | 0.003 | 1.005 | 300 |
B | 0.20 | 1.005 | 300 |
C | 0.02 | 1.035 | 300 |
D | 0.02 | 0.990 | 300 |
E | 0.02 | 1.005 | 300 |
F | 0.02 | 1.007 | 300 |
G | 0.02 | 1.005 | 100 |
H | 0.02 | 1.005 | 500 |
샘플 번호 | BT | MgCO3 | Re2O3 | MO | MnO | SiO2 | V2O5 | Cr2O3 | ||
몰수비 (b) | Re | 몰수비 (c) | M | 몰수비 (d) | 몰수비 (e) | 몰수비 (f) | 몰수비 (g) | 몰수비 (h) | ||
샘플1 | A | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플2 | B | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플3 | C | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플4 | D | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플5 | E | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플6 | F | 1,4 | Y | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플7 | E | 1,4 | Dy | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플8 | F | 1,4 | Dy | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플9 | E | 1,4 | Ho | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플10 | F | 1,4 | Ho | 1.0 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플11 | E | 0.75 | Y | 0.6 | Ca | 0.5 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플12 | E | 0.75 | Y | 0.8 | Ba | 0.5 | 0.2 | 1.3 | 0.02 | 0.1 |
샘플13 | E | 0.75 | Y | 0.5 | Ba | 0.6 | 0.2 | 1.0 | 0.02 | 0.1 |
샘플14 | G | 1,4 | Y | 1.2 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플15 | H | 1,4 | Y | 1.2 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플16 | E | 0.05 | Y | 1.2 | Ba | 2.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플17 | E | 3.5 | Y | 1.2 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플18 | E | 1.8 | Y | 0.05 | Ba | 2.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플19 | E | 1.8 | Y | 3.5 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플20 | E | 1.0 | Y | 1.3 | Ba | 0.05 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플21 | E | 1.0 | Y | 1.3 | Ba | 3.5 | 0.1 | 1.5 | 0.02 | 0.1 |
샘플22 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.02 | 1.5 | 0.02 | 0.1 |
샘플23 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 1.5 | 1.5 | 0.02 | 0.1 |
샘플24 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 0.1 | 0.02 | 0.1 |
샘플25 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 3.5 | 0.02 | 0.1 |
샘플26 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 1.5 | 0.00 | 0.1 |
샘플27 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 1.5 | 1.5 | 0.1 |
샘플28 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 0 |
샘플29 | E | 1.0 | Y | 1.3 | Ba | 1.0 | 0.1 | 1.5 | 0.02 | 1.5 |
샘플 번호 | 소성온도 (℃) | 유전율 | 유전손실 (%) | Tcc(85℃) (%) | 절연저항 (×108Ω) | 평균수명시간 (h) | 비고 |
샘플1 | 1180 | 2800 | 5.5 | -16 | 7.5 | Tcc가 X5R특성을 벗어남 | |
샘플2 | 1180 | 2000 | 9.0 | -11 | 0.01 | - | 미소성 |
샘플3 | 1200 | 1800 | 12 | -11 | 0.05 | - | 미소성 |
샘플4 | 1200 | 2900 | 9.5 | -17 | 0.1 | 2 | |
샘플5 | 1180 | 3210 | 6.8 | -11.6 | 9.8 | 54 | |
샘플6 | 1180 | 3120 | 6.1 | -11.9 | 10.2 | 64 | |
샘플7 | 1180 | 3260 | 7.5 | -9.8 | 11.1 | 51 | |
샘플8 | 1180 | 3180 | 6.4 | -11.6 | 9.6 | 55 | |
샘플9 | 1180 | 3100 | 7.0 | -13.6 | 12.2 | 47 | |
샘플10 | 1180 | 3080 | 6.1 | -14.2 | 13.5 | 53 | |
샘플11 | 1180 | 3450 | 7.9 | -9.8 | 12 | 47 | |
샘플12 | 1180 | 3500 | 8.5 | -10.5 | 14 | 41 | |
샘플13 | 1180 | 3568 | 8.9 | -7.8 | 15 | 36 | |
샘플14 | 1180 | 2100 | 9.2 | -8.2 | 2.4 | 4 | |
샘플15 | 1180 | 2540 | 9.6 | -10.2 | 1.6 | - | 미소성 |
샘플16 | 1180 | 2900 | 9.1 | -18.1 | 0.8 | 8 | |
샘플17 | 1180 | 2500 | 8.6 | -11.3 | 0.8 | 22 | |
샘플18 | 1180 | 3214 | 8.2 | -14.3 | 2.6 | 6 | |
샘플19 | 1180 | 2200 | 5.2 | -8.2 | 9.5 | 15 | |
샘플20 | 1180 | 2700 | 20.1 | -16.7 | 2.1 | 2 | |
샘플21 | 1180 | 2100 | 9.2 | -9.6 | 4.5 | - | 미소성 |
샘플22 | 1180 | 3150 | 8.2 | -11.3 | 5.2 | 21 | |
샘플23 | 1180 | 2700 | 6.5 | -14.2 | 2.2 | 40 | 에이징율: -5%/decade |
샘플24 | 1180 | 2050 | 10.6 | -10.5 | 0.4 | - | 미소성 |
샘플25 | 1180 | 3050 | 9.8 | -17.3 | 2.2 | 5 | |
샘플26 | 1180 | 3100 | 8.2 | -10.9 | 5.2 | 27 | 절연파괴 전압 저하 |
샘플27 | 1180 | 2850 | 6.5 | -12.2 | 2.2 | 6 | |
샘플28 | 1180 | 3050 | 6.8 | -12.1 | 6.5 | 22 | 절연파괴 전압 저하 |
샘플29 | 1180 | 2950 | 6.2 | -14.3 | 3.1 | 7 |
Claims (12)
- 주성분으로서 (Ba1-xCax)mTiO3; 및부성분으로서 MgCO3, Re2O3(Re2O3는 Y2O3, Dy2O3 및 Ho2O3 로 이루어진 그룹으로부터 1종 이상 선택되는 희토류 산화물), MO(M은 Ba 및 Ca 중 1가지 원소), MnO, V2O5, Cr2O3 및 소결 조제인 SiO2를 포함하고,조성식은 a(Ba1-xCax)mTiO3-bMgCO3-cRe2O3-dMO-eMnO-fSiO2-gV2O5-hCr2O3로 표현할 때 몰비로 a=100, 0.1≤ b ≤3.0, 0.1 ≤c≤ 3.0, 0.1 ≤d ≤3.0, 0.05 ≤e ≤1.0, 0.2≤ f ≤3.0, 0.01 ≤g ≤1.0, 0.01≤ h ≤1.0 이고, 0.005≤ x ≤0.15, 0.995 ≤m ≤1.03을 만족하는 것을 특징으로 하는 유전체 자기 조성물.
- 제1항에 있어서,상기 (Ba1-xCax)mTiO3 성분은 평균 입경이 150 내지 400nm인 (Ba1-xCax)mTiO3 분말에 의해 제공되는 것을 특징으로 하는 유전체 자기 조성물.
- 제1항에 있어서,상기 (Ba1-xCax)mTiO3 성분은 고상 혼합법, 수열 합성법 또는 졸-겔법에 의해 제조된 (Ba1-xCax)mTiO3 분말에 의해 제공되는 것을 특징으로 하는 유전체 자기 조성 물.
- 제1항에 있어서,상기 m과 d의 합은 1.00보다 크고 1.03 보다 작은 것을 특징으로 하는 유전체 자기 조성물.
- 제1항에 있어서,상기 SiO2 성분은 SiO2 분말에 의해 제공되는 것을 특징으로 하는 유전체 자기 조성물.
- 제1항에 있어서,상기 SiO2 성분은 SiO2 졸 또는 Si 알콕사이드에 의해 제공되는 것을 특징으로 하는 유전체 자기 조성물.
- 유전체층과 내부 전극이 교대로 적층되어 있는 콘덴서 본체를 포함하고,상기 유전체층은,주성분으로서 (Ba1-xCax)mTiO3와 부성분으로서 MgCO3, Re2O3(Re2O3는 Y2O3, Dy2O3 및 Ho2O3 로 이루어진 그룹으로부터 1종 이상 선택되는 희토류 산화물), MO(M은 Ba 및 Ca 중 1가지 원소), MnO, V2O5, Cr2O3 및 SiO2를 포함하는 유전체 자기 조성물로 이루어지고,상기 유전체 자기 조성물의 조성식은, a(Ba1-xCax)mTiO3-bMgCO3-cRe2O3-dMO-eMnO-fSiO2-gV2O5-hCr2O3로 표현할 때 몰비로 a=100, 0.1≤ b ≤3.0, 0.1 ≤c≤ 3.0, 0.1 ≤d ≤3.0, 0.05 ≤e ≤1.0, 0.2≤ f ≤3.0, 0.01 ≤g ≤1.0, 0.01≤ h ≤1.0 이고, 0.005≤ x ≤0.15, 0.995 ≤m ≤1.03을 만족하는 것을 특징으로 하는 적층 세라믹 콘덴서.
- 제7항에 있어서,상기 내부 전극에 함유되는 도전재는 Ni 또는 Ni 합금인 것을 특징으로 하는 적층 세라믹 콘덴서.
- 제7항에 있어서,상기 유전체층의 적층수가 400 이상인 것을 특징으로 하는 적층 세라믹 콘덴서.
- 제7항에 있어서,상기 유전체층의 두께는 3㎛이하인 것을 특징으로 하는 적층 세라믹 콘덴서.서.
- 제7항에 있어서,상기 유전체층의 두께는 0.5 내지 3㎛인 것을 특징으로 하는 적층 세라믹 콘덴서.
- 제7항에 있어서,상기 유전체층에 포함된 (Ba1-xCax)mTiO3 유전체 입자의 평균 입경은 150 내지 400nm인 것을 특징으로 하는 적층 세라믹 콘덴서.
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TW095127254A TWI315882B (en) | 2005-07-28 | 2006-07-26 | Dielectric ceramic composition for low temperature sintering and multilayer ceramic capacitor using the same |
JP2006204605A JP2007031273A (ja) | 2005-07-28 | 2006-07-27 | 低温焼成用の誘電体磁器組成物及びこれを用いた積層セラミックコンデンサ |
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KR20190111331A (ko) * | 2018-03-22 | 2019-10-02 | 주식회사 베이스 | 적층 세라믹 콘덴서용 유전체 조성물의 제조방법 |
KR102032349B1 (ko) | 2018-03-22 | 2019-10-16 | 주식회사 베이스 | 적층 세라믹 콘덴서용 유전체 조성물의 제조방법 |
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US7336476B2 (en) | 2008-02-26 |
CN100439284C (zh) | 2008-12-03 |
US20070025060A1 (en) | 2007-02-01 |
TWI315882B (en) | 2009-10-11 |
CN1903787A (zh) | 2007-01-31 |
TW200713360A (en) | 2007-04-01 |
JP2007031273A (ja) | 2007-02-08 |
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