Method for producing multilayer ceramic substrate
    6.
    发明授权
    Method for producing multilayer ceramic substrate 有权
    多层陶瓷基板的制造方法

    公开(公告)号:US08372227B2

    公开(公告)日:2013-02-12

    申请号:US13274519

    申请日:2011-10-17

    IPC分类号: C03B29/00 B29C65/00

    摘要: In a method for producing a multilayer ceramic substrate by a non-shrinkage process, even when a total area of surface electrodes on a first principal surface side is smaller than that on a second principal surface side, a favorable balance in terms of a time period from softening to crystallization of glass is achieved between the first principal surface side and the second principal surface side, thereby allowing all base material layers to be densified and prevented from causing cracks or warpage, even when the crystallization temperature is lowered to prevent production of a reaction layer. The crystallization temperature of a glass material included in a second base material layer defining a second principal surface with a larger total area of surface electrodes is less than that of a glass material included in a first base material layer defining a first principal surface.

    摘要翻译: 在通过非收缩工艺制造多层陶瓷基板的方法中,即使在第一主表面侧的表面电极的总面积比第二主面侧的表面电极的总面积小的情况下,在时间段 在第一主表面侧和第二主表面侧之间实现从玻璃的软化到结晶化,从而即使结晶温度降低,也可以使所有基材层致密化并防止其引起裂纹或翘曲,从而防止产生 反应层。 包含在限定具有较大表面电极总面积的第二主表面的第二基材层中的玻璃材料的结晶温度小于包含在限定第一主表面的第一基材层中的玻璃材料的结晶温度。

    Ceramic dielectrics and methods for forming the same
    8.
    发明授权
    Ceramic dielectrics and methods for forming the same 失效
    陶瓷电介质及其形成方法

    公开(公告)号:US5846892A

    公开(公告)日:1998-12-08

    申请号:US628643

    申请日:1996-07-24

    申请人: Takahiro Takada

    发明人: Takahiro Takada

    CPC分类号: H01B3/12 C04B35/465

    摘要: The present invention relates to a ceramic dielectrics. It is difficult to downsize a MgTiO.sub.2 -base ceramic composition conventionally used, having an insufficiently high relative dielectric constant (.di-elect cons..sub.r), less than 20, while a CaTiO.sub.3 -base ceramic composition, having a small value of Q, is not suitable for electronic devices processing a signal in the high-frequency-bandwidth. Moreover, it is difficult to control the temperature coefficient of resonant frequency of these conventional ceramic compositions. In the present invention, a ceramic dielectrics having a composition represented by xMgTiO.sub.3.(1-x)CaTiO.sub.3.y(Ln.sup.1.sub.1-w Ln.sup.2.sub.w).sub.2 Ti.sub.2z O.sub.3+4z (wherein Ln.sup.1 and Ln.sup.2 are lanthanoids, and w, x, y, and z are values in the ranges of 0.ltoreq.w

    摘要翻译: PCT No.PCT / JP95 / 01784第 371日期:1996年7月24日 102(e)日期1996年7月24日PCT提交1995年9月7日PCT公布。 第WO96 / 08019号公报 日期:1996年3月14日本发明涉及陶瓷电介质。 将具有小于20的相对介电常数(+531r)不足的常规使用的MgTiO 2基陶瓷组合物难以小型化,而具有小的Q值的CaTiO 3基陶瓷组合物不适于 电子设备处理高频带宽信号。 此外,难以控制这些常规陶瓷组合物的共振频率的温度系数。 在本发明中,具有由xMgTiO3(1-x)CaTiO3y(Ln11-wLn2w)2Ti2zO3 + 4z(其中Ln1和Ln2是镧系元素,w,x,y和z)表示的组成的陶瓷电介质是值 在0