온도특성 제어가 가능한 저온소성용 유전체 세라믹스조성물
    23.
    发明公开
    온도특성 제어가 가능한 저온소성용 유전체 세라믹스조성물 失效
    具有可调节温度系数的低火电介质陶瓷组合物

    公开(公告)号:KR1020070103642A

    公开(公告)日:2007-10-24

    申请号:KR1020060035496

    申请日:2006-04-19

    Abstract: A low temperature firing dielectric ceramic composition is provided to be capable of being fired at low temperature while maintaining dielectric characteristics such as a dielectric constant and a quality factor for forming a ceramic substrate. A low temperature firing dielectric ceramic composition contains (1) 50-80wt% of ZnNb2O6 dielectric ceramics, (2) 10-40wt% of TiO2 dielectric ceramics, and (3) 5-30wt% of SiO2-B2O3-Al2O3-CaO-ZnO-based glass frit of which a melting point ranges from 1400 to 1600 °C, wherein the firing temperature is kept in the range of 800-900 °C. The dielectric ceramic composition has a dielectric constant of 15-35, a quality factor of 3,000-16,000 GHz, and a temperature coefficient of resonant frequency of -100 to +100 ppm/°C.

    Abstract translation: 提供低温焙烧电介质陶瓷组合物以能够在保持诸如介电常数和用于形成陶瓷基板的品质因素之类的介电特性的同时在低温下烧制。 低温焙烧电介质陶瓷组合物含有(1)50-80重量%的ZnNb 2 O 6电介质陶瓷,(2)10-40重量%的TiO 2电介质陶瓷,和(3)5-30重量%的SiO 2 -B 2 O 3 -Al 2 O 3 -FAO-ZnO 的玻璃料,其熔点范围为1400〜1600℃,其中烧成温度保持在800-900℃的范围内。 介电陶瓷组合物的介电常数为15-35,品质因数为3,000-16,000GHz,共振频率的温度系数为-100〜+100ppm /℃。

    생체적합성 실리콘 나노입자의 제조 방법
    24.
    发明授权
    생체적합성 실리콘 나노입자의 제조 방법 失效
    생체적합성실리콘나노입자의제조방법

    公开(公告)号:KR100644968B1

    公开(公告)日:2006-11-14

    申请号:KR1020050102333

    申请日:2005-10-28

    Abstract: Provided is a preparation method of biocompatible silicon nano particles excellent in dispersion stability for use in fluorescent probe in biological studies that include cancer diagnosis and cell imaging. The preparation method of biocompatible silicon nano particles comprises the steps of: obtaining silicon nano particle colloid by treating Si-containing zintl salt with diethylene glycol diethyl ether(DGDE) under ultrasonic radiation; and mixing the silicon nano particle colloid with a hydrogen halide solution. In detail, Si-containing zintl salt and DGDE are used in a ratio of 1:10 to 1:100,000 by weight and are subjected to ultrasonic radiation for 1 minute to 10 hours under an inert gas atmosphere such as Ar, He, N and so on. Preferably, the hydrogen halide solution has a concentration of 1 to 35 wt%, and is mixed in an amount of 0.01 to 1 wt% with respect to the weight of silicon nano particle collide.

    Abstract translation: 本发明提供一种在生物学研究中用于荧光探针的分散稳定性优异的生物相容性硅纳米粒子的制备方法,其包括癌症诊断和细胞成像。 一种生物相容性硅纳米颗粒的制备方法,包括以下步骤:用超声辐射处理含二乙二醇二乙醚(DGDE)的含硅锌盐,得到硅纳米颗粒胶体; 并将硅纳米颗粒胶体与卤化氢溶液混合。 具体而言,含Si的锌盐和DGDE以1:10至1:100,000的重量比使用,并且在诸如Ar,He,N和N的惰性气体气氛下经受超声辐射1分钟至10小时 等等。 优选卤化氢溶液的浓度为1〜35重量%,相对于硅纳米粒子的重量碰撞而混合0.01〜1重量%。

    수축율이 매칭된 복합 세라믹체
    26.
    发明公开
    수축율이 매칭된 복합 세라믹체 失效
    具有匹配收缩的复合陶瓷

    公开(公告)号:KR1020050075863A

    公开(公告)日:2005-07-22

    申请号:KR1020040003535

    申请日:2004-01-17

    Abstract: 본 발명은 저유전율 세라믹 후막과 중유전율 세라믹 후막이 다수 적층된 저온 동시소성용 복합 세라믹체에 관한 것으로서, 더욱 상세하게는 저유전율 세라믹 조성물과 중유전율 세라믹 조성물 중에 각각 함유되는 유리프리트의 조성계를 공통으로 선정함으로써 900 ℃를 전후한 넓은 소성 온도범위에서의 수축거동을 동일하게 매칭하여 이종(異種) 후막간에 휨이나 박리가 없도록 한 복합 세라믹체에 관한 것이다. 본 발명에 따른 복합 세라믹체 제조기술은 다기능성 세라믹 후막 적층 모듈을 구현하는데 효과적으로 이용될 수 있다.

    저온소결 SrTiO3계 바리스터-캐패시터 복합기능소자유전체 조성물
    28.
    发明公开
    저온소결 SrTiO3계 바리스터-캐패시터 복합기능소자유전체 조성물 无效
    低温烧结SRTIO3变压器电容器双功能器件电介质化合物

    公开(公告)号:KR1020020028281A

    公开(公告)日:2002-04-17

    申请号:KR1020000059210

    申请日:2000-10-09

    Abstract: PURPOSE: A low temperature sintered SrTiO3 varistor-capacitor dual function device dielectric compound is provided to reduce a sintering temperature from 1400°C to 1200°C. CONSTITUTION: A low temperature sintered SrTiO3 varistor-capacitor dual function device dielectric compound is Sr(1-x-y)BaxCayTiO3. The basic material powder is subjected to wet milling for 24 hours after Nb2O5 is added for increasing conductivity of grain. The basic material powder is dried and PVA(poly-vinyl alcohol) of 2 mol% is added, after wet ball milling. Molding is carried out at 100MPa. The molded sample is sintered in a reduction furnace with N2 and H2 gas of 90 to 10 mixture ratio. The sintered sample is re-oxidized at 900°C to oxidize grain boundary and sample surface so as to form a high resist layer. On the re-oxidized sample, outer electrodes are formed by thermally processing Ag electrodes.

    Abstract translation: 目的:提供低温烧结SrTiO3变阻器 - 电容器双功能器件电介质化合物,以将烧结温度从1400℃降低到1200℃。 构成:低温烧结SrTiO3变阻器 - 电容器双功能器件介电化合物为Sr(1-x-y)BaxCayTiO3。 在添加Nb2O5后,将基本材料粉末进行湿磨24小时,以增加晶粒的电导率。 将基本材料粉末干燥,湿球磨后加入2mol%的PVA(聚乙烯醇)。 成型时间为100MPa。 将模制样品在还原炉中烧结,其中N 2和H 2气体的混合比为90至10。 烧结的样品在900℃下再氧化,氧化晶界和样品表面,形成高抗蚀剂层。 在再氧化样品上,通过热处理Ag电极形成外电极。

    저전압용 MELF형 바리스터-캐패시터 복합기능소자제조방법
    29.
    发明公开
    저전압용 MELF형 바리스터-캐패시터 복합기능소자제조방법 失效
    制造低压熔融型电容器多功能器件的方法

    公开(公告)号:KR1020020028280A

    公开(公告)日:2002-04-17

    申请号:KR1020000059209

    申请日:2000-10-09

    Abstract: PURPOSE: A method for manufacturing a low voltage MELF(metal electrode face bonding device) type varistor-capacitor multifunctional device is provided to reduce cost, mount to a PCB without leads or packaging, and simultaneously obtain varistor characteristic and capacitor characteristic. CONSTITUTION: A low voltage MELF type varistor-capacitor multifunctional device is manufactured by using Sr0.9Ca0.1TiO3 as basic material powder. The basic material powder is subjected to wet milling for 24 hours after Nb2O5 of 0.4-0.6 mol% is added. The basic material powder is calcined at 1100°C for 2 hours after wet ball milling. After adding MnO of 0.2mol% and SiO2 of 0.2mol% to the calcined material, the calcined material is subjected to wet ball milling for 24 hours. Then, organic vehicle is mixed to form slurry. The slurry is molded as a pipe by a dice. The pipe is sintered in a reduction furnace for 4 hours. The sintered sample is re-oxidized in a furnace with the air at 800°C. On the re-oxidized sample, outer electrodes are formed by thermally processing Ag electrodes at 600°C for 10 minutes.

    Abstract translation: 目的:提供一种用于制造低压MELF(金属电极面接合装置)型变阻器电容器多功能装置的方法,以降低成本,安装到没有引线或封装的PCB上,并同时获得压敏电阻特性和电容器特性。 构成:使用Sr0.9Ca0.1TiO3作为基础材料粉末制造低压MELF型变阻器电容器多功能元件。 在加入0.4-0.6mol%的Nb2O5之后,将基础材料粉末进行湿磨24小时。 基础材料粉末在湿球磨后在1100℃下煅烧2小时。 在煅烧材料中加入0.2mol%的MnO和0.2mol%的SiO 2后,将煅烧后的材料进行湿式球磨24小时。 然后,将有机载体混合形成浆料。 浆料通过骰子成型为管。 将管在还原炉中烧结4小时。 烧结的样品在800℃的空气中在炉中再次氧化。 在再氧化样品上,通过在600℃下热处理Ag电极10分钟形成外部电极。

    고주파용 유전체 세라믹스 조성물

    公开(公告)号:KR100302455B1

    公开(公告)日:2001-10-17

    申请号:KR1019980030344

    申请日:1998-07-28

    Abstract: 본 발명은 고주파용 세라믹스 조성물에 관한 것으로, 특히 1 mole의 MgNb
    2 O
    6 에 대해 각각 0 ∼ 1 mole의 TiO
    2 를 조합으로 하는 것을 주 조성으로 하고 첨가제로서 MO
    3 (M
    6+ = W, Mo, Cr, Se, Te 및 Po)가 각각 0 ∼ 0.4 wt%로 구성되는 것을 특징으로 하는 유전체 세리믹스 조성물에 관한 것으로, 기존의 고주파 유전체 조성보다 비교적 낮은 소결온도 (1,200℃)이면서 높은 품질계수 (QX f > 40,000 GHz)와 유전상수 ( εr > 25) 및 안정된 온도계수 (τf = -49∼ +38 ppm/℃)의 우수한 고주파 유전특성이 MgNb
    2 O
    6- TiO
    2 와 같은 비교적 저가의 원료로 구현되는 것을 특징으로 한다.

Patent Agency Ranking