Method for producing monolithic electronic parts
    1.
    发明授权
    Method for producing monolithic electronic parts 失效
    单片电子零件的制造方法

    公开(公告)号:US06255037B1

    公开(公告)日:2001-07-03

    申请号:US08842432

    申请日:1997-04-24

    IPC分类号: G03F700

    CPC分类号: H01G4/308

    摘要: Inexpensive methods for producing small-sized monolithic electronic parts with improved functions by which an electroconductive film can be formed uniformly, thin, and in fine patterns on a ceramic green sheet, a carrier film, or a resin film, for example. A plurality of such ceramic green sheets, etc., each having the electroconductive film formed thereon, are laminated to give a ceramic laminate, which is then sintered. The electroconductive film is formed on each ceramic green sheet, etc., by the steps of: applying a hydrophilic liquid containing an activating catalyst comprising copper oxide, a palladium salt and an alkaline solution, for example, to thereby form a photosensitive film comprising said liquid containing said activating catalyst, exposing the photosensitive predetermined regions to thereby deposit palladium catalyst on said regions, washing out the non-exposed regions of the photosensitive film with water or a liquid consisting essentially of water, and dipping the ceramic green sheet having palladium catalyst deposited thereon in an electroless plating bath to thereby form the intended electroconductive film by electroless plating.

    摘要翻译: 用于制造具有改进功能的小尺寸单片电子部件的廉价方法,通过该方法可以在例如陶瓷生片,载体膜或树脂膜上均匀,薄且精细地形成导电膜。 将多个形成有导电膜的陶瓷生片等层叠,得到陶瓷层叠体,然后烧结。 导电膜通过以下步骤形成在每个陶瓷生片上:例如,施加含有包含氧化铜,钯盐和碱性溶液的活化催化剂的亲水性液体,从而形成包含所述 含有所述活化催化剂的液体,曝光光敏预定区域,从而在所述区域上沉积钯催化剂,用水或基本上由水组成的液体冲洗感光膜的未曝光区域,并浸渍具有钯催化剂的陶瓷生片 在化学镀浴中沉积,从而通过无电镀形成预期的导电膜。

    Method of manufacturing electronic part, electronic part and electroless plating method
    2.
    发明授权
    Method of manufacturing electronic part, electronic part and electroless plating method 有权
    电子零件,电子零件和化学镀方法的制造方法

    公开(公告)号:US06780456B2

    公开(公告)日:2004-08-24

    申请号:US10315949

    申请日:2002-12-11

    IPC分类号: B05D512

    摘要: A work piece is mixed with Ni pieces having an average diameter of 1 mm and exhibiting catalytic activity to oxidation reaction of sodium phosphinate (NaH2PO2) added as a reducing agent in a plating bath containing the reducing agent and a Ni salt to form a Ni—P film on an electrode made of Cu, Ag or Ag—Pd by auto-catalytic electroless plating. Then, the work piece is dipped in a plating bath containing an Au salt to form an Au film on the surface of the Ni—P film by substitutional electroless plating. This method is capable of forming a desired plating film only on a desired portion at a low cost.

    摘要翻译: 将工件与平均直径为1mm的Ni片混合,并且在含有还原剂的镀浴和Ni盐中显示出对作为还原剂加入的次膦酸钠(NaH 2 PO 2)的氧化反应的催化活性,形成Ni- 通过自动催化无电镀法在Cu,Ag或Ag-Pd制成的电极上的P膜。 然后,将工件浸入含有Au盐的镀浴中,通过替代无电镀在Ni-P膜的表面上形成Au膜。 该方法能够以低成本仅在期望的部分形成期望的镀膜。

    Barium titanate semiconductive ceramic
    3.
    发明授权
    Barium titanate semiconductive ceramic 有权
    钛酸钡半导体陶瓷

    公开(公告)号:US06472339B2

    公开(公告)日:2002-10-29

    申请号:US09157062

    申请日:1998-09-18

    IPC分类号: C04B35468

    摘要: The present invention provides barium titanate semiconductive ceramic having low specific resistance at room temperature and high withstand voltage, which fully satisfies the demand for enhancing withstand voltage. The average ceramic grain size of the barium titanate semiconductive ceramic is controlled to about 0.9 &mgr;m or less. By this control, the ceramic possesses low specific resistance at room temperature and high withstand voltage fully satisfying a recent demand for enhancing withstand voltage and may suitably used for applications such as controlling temperature and limiting current, or in exothermic devices for constant temperature. Accordingly, the barium titanate semiconductive ceramic enables an apparatus using the same to have enhanced performance and reduced size.

    摘要翻译: 本发明提供了在室温下具有低电阻率和高耐压的钛酸钡半导体陶瓷,其完全满足提高耐电压的要求。 钛酸钡半导体陶瓷的平均陶瓷粒径控制在0.9μm以下。 通过该控制,陶瓷在室温下具有低的电阻率和高耐受电压,完全满足了近来对提高耐受电压的要求,并且可以适用于诸如控制温度和限制电流的应用,或用于恒温的放热装置中。 因此,钛酸钡半导体陶瓷使得能够使用其的装置具有增强的性能和减小的尺寸。

    Semiconductive ceramic composition and semiconductive ceramic device
using the same
    4.
    发明授权
    Semiconductive ceramic composition and semiconductive ceramic device using the same 失效
    半导体陶瓷组合物和半导体陶瓷器件使用相同

    公开(公告)号:US5703000A

    公开(公告)日:1997-12-30

    申请号:US796916

    申请日:1997-02-06

    IPC分类号: C04B35/00 H01C7/04 C04B35/50

    CPC分类号: H01C7/043

    摘要: Provided is a semiconductive ceramic composition comprising a lanthanum cobalt oxide and having a negative resistance-temperature characteristic, which contains, as the side component, a chromium oxide in an amount of from about 0.005 to 30 mol % in terms of chromium, and also a semiconductive ceramic device comprising the composition. The device is usable for rush current inhibition, for motor start-up retardation and for halogen lamp protection, and is also usable in temperature-compensated crystal oscillators.

    摘要翻译: 本发明提供一种包含氧化镧钴并具有负电阻温度特性的半导体陶瓷组合物,其含有以铬计为0.005〜30摩尔%左右的铬氧化物作为副成分, 包含该组合物的半导体陶瓷装置。 该装置可用于冲击电流抑制,电机启动延迟和卤素灯保护,也可用于温度补偿晶体振荡器。

    Method of producing a laminated electronic device
    5.
    发明授权
    Method of producing a laminated electronic device 失效
    层压电子器件的制造方法

    公开(公告)号:US5672220A

    公开(公告)日:1997-09-30

    申请号:US636685

    申请日:1996-04-23

    摘要: A plurality of dielectric ceramic sheets having inner electrodes thereon are laminated and sintered. The ceramic sheets are made of a non-reducing dielectric material, and the inner electrodes are made of a base metal or a base metal alloy. After a binder removing step, the laminate is sintered in a mixed gas which contains either one or both of carbon dioxide with a purity of 99.9% or more and carbon monoxide with a purity of 99.9% or more as its main constituent and further contains hydrogen and oxygen with their densities regulated.

    摘要翻译: 其上具有内电极的多个介电陶瓷片被层压并烧结。 陶瓷片由非还原电介质材料制成,内电极由贱金属或贱金属合金制成。 在粘合剂除去步骤之后,将层压体在含有纯度为99.9%以上的二氧化碳中的一种或两种作为主要成分的纯度为99.9%以上的一氧化碳的混合气体中烧结,并且还含有氢 氧气密度调节。

    Method for producing non-reducible dielectric ceramic composition
    8.
    发明授权
    Method for producing non-reducible dielectric ceramic composition 失效
    不可还原介电陶瓷组合物的制造方法

    公开(公告)号:US4988468A

    公开(公告)日:1991-01-29

    申请号:US141999

    申请日:1988-01-06

    IPC分类号: C04B35/468 H01G4/12

    CPC分类号: C04B35/4682 H01G4/1245

    摘要: A method for producing non-reducible dielectric ceramics of the kind comprising a basic composition of a three component system BaTiO.sub.3 -CaTiO.sub.3 -CaZrO.sub.3 or a four component system BaTiO.sub.3 -CaTiO.sub.3 -CaZrO.sub.3 -MgTiO.sub.3 and containing additives composed of at least manganese oxide and silicon dioxide. The method comprises the steps of separately preparing calcined powders of at least three perovskite compounds including BaTiO.sub.3, CaTiO.sub.3 and CaZrO.sub.3, mixing the calcined powders to prepare a mixture for a basic composition, adding additives composed of at least manganese oxide and silicon dioxide to the mixtures for the basic composition, and then firing the resultant mixture in a reducing atmosphere. One of the oxides, magnesium oxide, calcium oxide, strontium oxide and barium oxide is additionally incorporated into the mixture for the basic composition together with manganese oxide and silicon dioxide.

    摘要翻译: 一种生产这样的不可还原电介质陶瓷的方法,其包括三组分体系BaTiO3-CaTiO3-CaZrO3或四组分体系BaTiO3-CaTiO3-CaZrO3-MgTiO3的基本组成,并且含有至少由氧化锰和二氧化硅组成的添加剂 。 该方法包括分别制备包括BaTiO 3,CaTiO 3和CaZrO 3的至少三种钙钛矿化合物的煅烧粉末的步骤,混合煅烧粉末以制备用于碱性组合物的混合物,向混合物中加入由至少氧化锰和二氧化硅组成的添加剂 对于基本组成,然后在还原气氛中烧结所得混合物。 氧化物,氧化镁,氧化钙,氧化锶和氧化钡之一另外与氧化锰和二氧化硅一起并入碱性组合物的混合物中。