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公开(公告)号:KR1020070043531A
公开(公告)日:2007-04-25
申请号:KR1020050099894
申请日:2005-10-21
IPC: H01G4/12
Abstract: 본 발명은 고유전율 캐패시터에 관한 것으로, 캐패시터 물질로 유전체 세라믹-수지 복합체를 이용하고, 이 복합체 내부에 바늘 형태의 내부 전극을 형성하여 고유전율을 구현하였다. 캐패시터 코아 표면의 파워 전극 및 그라운드 전극으로부터 코아 물질 내부로 연장되는 바늘 형태의 내부 전극을 형성하고 바늘 형태의 전극 크기와 간격을 조절함으로써 MLCC에 필적하는 정전용량을 갖는 고유전율 캐패시터를 고온에서의 소성과정 없이 얻을 수 있으며, 특히 세라믹-수지 복합체를 이용함으로써 소성 과정을 필요로 하지 않아 전극 물질에 대한 제한을 완화시킬 수 있다.
적층형 세라믹 캐패시터, 세라믹-수지 복합체, 정전 용량-
公开(公告)号:KR1020070034891A
公开(公告)日:2007-03-29
申请号:KR1020050089538
申请日:2005-09-26
Applicant: 한국과학기술연구원
Abstract: 본 발명은 강유전체 세라믹 물질에 전도성 물질을 물리적 처리를 통하여 흡착 시킨 하이브리드 충진제 및 이를 이용한 고분자 복합체에 관한 것으로, 본 발명에 따르면, 고분자 복합체의 유전상수를 높일 수 있고 유전손실을 낮출 수 있어, 내장형 커패시터 등에 효과적으로 적용할 수 있다.
탄소나노튜브(Carbon nanotube), 고유전율 복합재료, 티탄산바륨, 하이브리드 충진제, 유전체, 내장형 캐패시터, 유전 상수Abstract translation: 本发明涉及到使用相同的吸附混合填料和通过在铁电陶瓷材料的物理处理,将其导电性材料,本发明可以增加聚合物复合材料的介电常数的聚合物复合材料,并且可以降低介电损耗,嵌入式电容器 等等。
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公开(公告)号:KR100399017B1
公开(公告)日:2003-09-19
申请号:KR1020000059081
申请日:2000-10-07
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: PURPOSE: Provided are a complex of ferroelectrics and ferromagnetics which has both ferroelectricity of the ferroelectrics and ferromagnetism of the ferromagnetics and can be used as memory elements, and etc, and a method for producing the same. CONSTITUTION: The method comprises the steps of (i) synthesizing ferroelectric ceramics, (ii) crushing the ferroelectric ceramics into the powder, (iii) synthesizing ferromagnetic ceramics, (iv) crushing the ferromagnetic ceramics into the powder, (v) mixing the ferroelectric ceramics power and the ferromagnetic ceramics powder, and (vi) compression molding the mixture.
Abstract translation: 本发明提供一种具有铁电体的铁电性和铁磁体的铁磁性并且可以用作记忆元件等的铁电体和铁磁体的复合体及其制造方法。 该方法包括以下步骤:(i)合成铁电陶瓷,(ii)将铁电陶瓷粉碎成粉末,(iii)合成铁磁陶瓷,(iv)将铁磁陶瓷粉碎成粉末,(v)将铁电体 陶瓷粉末和铁磁陶瓷粉末,以及(vi)压缩成型混合物。
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公开(公告)号:KR100390281B1
公开(公告)日:2003-07-07
申请号:KR1020000069528
申请日:2000-11-22
Applicant: 한국과학기술연구원
IPC: G11B5/127
Abstract: PURPOSE: A junction glass for fixing a magnetic head is provided to have a thermal expansion coefficient similar to ferrite, have a junction temperature under 450 °C to be lower than a softening point of a gap junction glass, and to prevent the generation of recrystallization upon heat processing. CONSTITUTION: A junction glass has a low fusion point and is used for fixing a magnetic head at a temperature under 450 °C. An MIG(Metal-In-Gap) type magnetic head core is coupled to a gap of a top shield that is composed of ferrite and CaTiO3, wherein a metal magnetic thin film is formed in a gap of a pair of ferrite cores and a gap junction glass is used for coupling the gap to form the magnetic head core by mutually coupling the ferrite cores. And the junction glass for fixing the magnetic head consists of, in percentage, PbO 50-90%, B2 O3 5-20%. ZnO 0-15%, Cu2 O 0-10%, Bi2 O3 0-5%. and SiO2 0-5%.
Abstract translation: 本发明提供一种用于固定磁头的接合玻璃,其热膨胀系数与铁氧体相似,其结温低于450℃,低于间隙接合玻璃的软化点, 通过热处理产生再结晶。 组成:中继玻璃具有低熔点,用于在450℃和低于450℃的温度下固定磁头。 MIG(Metal-In-Gap)型磁头磁芯与由铁氧体和CaTiO 3组成的顶部屏蔽的间隙连接,其中在一对铁氧体磁心的间隙中形成金属磁性薄膜, 中间玻璃用于通过相互耦合铁氧体磁芯来耦合间隙以形成磁头磁芯。 用于固定磁头的接合玻璃由百分比为PbO 50-90%,B2O3 5-20%组成。 ZnO 0-15%,Cu 2 O 0-10%,Bi 2 O 3 0-5%。 和SiO2 0-5%。
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公开(公告)号:KR100389688B1
公开(公告)日:2003-06-27
申请号:KR1020000069529
申请日:2000-11-22
Applicant: 한국과학기술연구원
IPC: G11B5/127
Abstract: PURPOSE: A junction glass for fixing a magnetic head is provided to have a thermal expansion coefficient similar to ferrite, to have a junction temperature lower than a softening point of a gap junction glass, and to prevent the generation of recrystallization upon heat treatment. CONSTITUTION: Two ferrite cores are coupled with a gap junction glass, to form a magnetic head core(1). The magnetic head core is inserted in a core inserting groove of a slider(3). A junction glass(4) for fixing the magnetic head has a heat treatment temperature lower than a softening point of the gap junction glass, and is loaded on the magnetic head core. The junction glass for fixing the magnetic head is fused and injected to a gap of the core inserting groove, to couple the magnetic head core to the core inserting groove. The junction glass for fixing the magnetic head consists of, in percentage, PbO 60-80%, SiO2 5-20%, B2 O3 2-10%. Al2 O3 0-5%, ZnO 0-5%, Fe2 O3 0-5%, CuO 0-5%, TeO2 2-15%, and Bi2 O3 2-15%.
Abstract translation: 目的:提供一种用于固定磁头的接合玻璃,其热膨胀系数与铁氧体相似,其结点温度低于间隙接合玻璃的软化点,并防止热处理时产生再结晶。 组成:两个铁氧体磁芯与间隙连接玻璃耦合,形成一个磁头磁芯(1)。 磁头芯被插入滑块(3)的芯插入槽中。 用于固定磁头的接合玻璃(4)的热处理温度低于间隙接合玻璃的软化点,并装载在磁头芯上。 用于固定磁头的接合玻璃熔融并注入到芯插入槽的间隙中,以将磁头芯连接到芯插入槽。 用于固定磁头的接合玻璃由百分比为PbO 60-80%,SiO 2 5-20%,B 2 O 3 2-10%组成。 Al 2 O 3 0-5%,ZnO 0-5%,Fe 2 O 3 0-5%,CuO 0-5%,TeO 2 2-15%和Bi 2 O 3 2-15%。
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公开(公告)号:KR1020020039740A
公开(公告)日:2002-05-30
申请号:KR1020000069528
申请日:2000-11-22
Applicant: 한국과학기술연구원
IPC: G11B5/127
Abstract: PURPOSE: A junction glass for fixing a magnetic head is provided to have a thermal expansion coefficient similar to ferrite, have a junction temperature under 450 °C to be lower than a softening point of a gap junction glass, and to prevent the generation of recrystallization upon heat processing. CONSTITUTION: A junction glass has a low fusion point and is used for fixing a magnetic head at a temperature under 450 °C. An MIG(Metal-In-Gap) type magnetic head core is coupled to a gap of a top shield that is composed of ferrite and CaTiO3, wherein a metal magnetic thin film is formed in a gap of a pair of ferrite cores and a gap junction glass is used for coupling the gap to form the magnetic head core by mutually coupling the ferrite cores. And the junction glass for fixing the magnetic head consists of, in percentage, PbO 50-90%, B2 O3 5-20%. ZnO 0-15%, Cu2 O 0-10%, Bi2 O3 0-5%. and SiO2 0-5%.
Abstract translation: 目的:提供用于固定磁头的接合玻璃以具有与铁素体相似的热膨胀系数,结温在450℃以下,以便低于间隙接合玻璃的软化点,并且防止再结晶的产生 经热处理。 结构:接合玻璃具有低熔点,用于在450℃的温度下固定磁头。 MIG(金属间隙)型磁头芯与由铁氧体和CaTiO 3组成的顶部屏蔽的间隙耦合,其中金属磁性薄膜形成在一对铁氧体磁芯的间隙和间隙 连接玻璃用于通过相互耦合铁氧体磁芯来连接间隙以形成磁头芯。 用于固定磁头的接合玻璃由以下百分比组成:PbO 50-90%,B2 O3 5-20%。 ZnO 0-15%,Cu 2 O 0-10%,Bi 2 O 3 0-5%。 和SiO 2 0-5%。
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公开(公告)号:KR1020020033359A
公开(公告)日:2002-05-06
申请号:KR1020000064252
申请日:2000-10-31
Applicant: 한국과학기술연구원
IPC: G11B5/10
Abstract: PURPOSE: A junction glass for magnetic heads is provided to have a thermal expansion coefficient similar to ferrite and to have a junction temperature under 600 °C. And the junction glass is provided to have an excellent water resistance and an abrasion resistance, and to prevent the encroachment of a thin film or the generation of foam upon heat treatment. CONSTITUTION: A junction glass has a low fusion point that is used for uniting or fixing a magnetic head at a temperature under 600 °C. The junction glass for magnetic heads is used to unite or fix an MIG(Metal In Gap) type magnetic head, in which a FeN type metal magnetic thin film is formed in a gap of a pair of ferrite cores. And the junction glass for magnetic heads consists of, in percentage, PbO 45-80 %, SiO2 5-25%, B,.2 O3 0-10%. Bi2 O3 0-20%, Al2 O3 0-10%, .ZnO 0-10%, Fe2 O3 0-5%, Sb2 O3 0-2%, and Na2 O and K2 O 0-10%.
Abstract translation: 目的:提供用于磁头的接合玻璃以具有与铁素体相似的热膨胀系数,并具有低于600℃的结温。 并且提供接合玻璃以具有优异的耐水性和耐磨性,并且在热处理时防止薄膜的侵入或泡沫的产生。 结构:接合玻璃具有低熔点,用于在600℃以下的温度下结合或固定磁头。 用于磁头的接合玻璃用于联合或固定在一对铁氧体磁心的间隙中形成FeN型金属磁性薄膜的MIG(金属间隙)型磁头。 用于磁头的接合玻璃以PbO 45-80%,SiO 2 5-25%,B,.0 O 3 0-10%的百分比组成。 Bi 2 O 3 0-20%,Al 2 O 3 0-10%,ZO 10-10%,Fe 2 O 3 0-5%,Sb 2 O 3 0-2%,Na 2 O和K 2 O 0-10%。
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公开(公告)号:KR100313324B1
公开(公告)日:2001-11-09
申请号:KR1019990047980
申请日:1999-11-01
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: 본발명은저온소성용초미립유전체세라믹조성물에관한것으로, 0 ~ 5 mole의 CuTiO를조합한 BaTiO를주조성으로하고, 특히양호한소결성을가지는 2 mole의 CuTiO와의조합에대해첨가제로서 MO가 0 ~ 5 mole로구성되는것을특징으로한다. 여기서 M은 La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er 및 Yb 중에서선택되는어느하나이상의성분이다. 본발명에따르면 1100℃의 저온에서평균입경이 0.2㎛이하인저온소성용초미립 BaTiO계유전체세라믹스를얻을수 있다.
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公开(公告)号:KR1020010044922A
公开(公告)日:2001-06-05
申请号:KR1019990047982
申请日:1999-11-01
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: PURPOSE: An ultrafine dielectric ceramic composition for a low temperature plasticity is provided to achieve a low temperature plasticity and an ultrafine BaTiO3 dielectric ceramic composition by adding a proper sintering material to the BaTiO3. CONSTITUTION: An ultrafine dielectric ceramic composition for a low temperature plasticity is made based on the following formula BaTiO3 + xCu2O. Here, x is ranging from 0.00 to 0.05. M2O3 is added to the composition as much as 0 to 5 mole. Here, M is one or more selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Yb.
Abstract translation: 目的:提供一种低温可塑性的超细电介质陶瓷组合物,通过向BaTiO3中加入适当的烧结材料来实现低温塑性和超细BaTiO3介电陶瓷组合物。 构成:用于低温可塑性的超细电介质陶瓷组合物是基于下式BaTiO3 + xCu2O制成的。 这里,x为0.00〜0.05。 向组合物中加入多至0至5摩尔的M2O3。 这里,M是选自La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er和Yb中的一种或多种。
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公开(公告)号:KR1019960001924B1
公开(公告)日:1996-02-06
申请号:KR1019920019133
申请日:1992-10-17
Applicant: 한국과학기술연구원
IPC: C30B11/02
Abstract: The growth period of manganese-zinc ferrite single crystal using modified Bridgeman crystal growth method to control composition is shortened by (a) fixing temperature of the growth furnace to 400 deg.C in the cooling step completed single crystal growth, (b) putting the grown single crystal, to be maintained at 400 deg.C, into the refractory for temperature conservation, (c) cooling them with predetermined cooling speed in the temperature controllable oven, (d) growing continuously the next single crystal in the growth furnace at 400 deg.C.
Abstract translation: 使用改性Bridgeman晶体生长方法控制组成的锰锌铁氧体单晶的生长期由(a)在冷却步骤中将生长炉的定影温度提高到400℃,完成单晶生长,(b)将 将生长的单晶保持在400℃进入耐火材料进行保温,(c)在温度可控的烘箱中以预定的冷却速度冷却,(d)在生长炉中连续生长下一个单晶400 摄氏度
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