Thermally-conductive electrically-insulating polymer-base material
    3.
    发明授权
    Thermally-conductive electrically-insulating polymer-base material 有权
    导热电绝缘聚合物基材料

    公开(公告)号:US06822018B2

    公开(公告)日:2004-11-23

    申请号:US10075978

    申请日:2002-02-15

    IPC分类号: C08K904

    CPC分类号: C08K3/08

    摘要: An electrically-insulating polymer-based material with improved thermal conductvity so as to be suitable for use as an adhesive for mounting and conducting heat from electronic devices. The polymer-based material comprises metal particles dispersed in a matrix material. The metal particles are encapsulated by a dielectric coating so that they are electrically insulated from each other. The polymer-based material may also comprise dielectric particles dispersed in the matrix material and/or the dielectric coating for the purpose of further increasing the thermal conductivity of the polymer-based material. The material is also suitable for use as a potting compound or an encapsulation material for various electronic applications.

    摘要翻译: 一种具有改进的导热性的电绝缘聚合物基材料,以便适合用作用于从电子设备安装和传导热量的粘合剂。 基于聚合物的材料包括分散在基质材料中的金属颗粒。 金属颗粒被介电涂层包封,使得它们彼此电绝缘。 为了进一步提高聚合物基材料的导热性,基于聚合物的材料还可以包含分散在基体材料和/或电介质涂层中的介电粒子。 该材料也适用于各种电子应用的灌封化合物或封装材料。

    Method and apparatus for through hole substrate printing
    5.
    发明授权
    Method and apparatus for through hole substrate printing 失效
    通孔基板印刷的方法和装置

    公开(公告)号:US5322565A

    公开(公告)日:1994-06-21

    申请号:US810246

    申请日:1991-12-19

    摘要: A method and apparatus are disclosed for enabling automated printing of through holes extending between top and bottom surfaces of a ceramic substrate or the like. The perimeter of the substrate is placed on a support that locates the bottom surface of the substrate spaced from a member that interacts with the interior portion of the substrate. The interacting member has holes that correspond to the through holes in the substrate, and it is moved generally perpendicular to the substrate to a position where it is in juxtaposition with the bottom surface of the substrate and its holes are in registration with the holes in the substrate. Conductive material is applied to the top surface of the substrate and a vacuum is applied to the holes in the interacting member to pull the conductive material through the through holes in the substrate. The vacuum is then discontinued and the interacting member is moved back to a position where it is spaced from the bottom surface of the substrate.

    摘要翻译: 公开了一种能够自动打印在陶瓷基板等的顶表面和底表面之间延伸的通孔的方法和装置。 衬底的周边被放置在支撑件上,支撑件定位衬底的底表面与与衬底的内部部分相互作用的构件间隔开。 相互作用的构件具有与衬底中的通孔相对应的孔,并且其大致垂直于衬底移动到与衬底的底表面并置的位置,并且其孔与位于衬底中的孔对准的位置 基质。 将导电材料施加到衬底的顶表面,并且将真空施加到相互作用构件中的孔以将导电材料拉过衬底中的通孔。 然后中断真空并且相互作用的构件被移回到与衬底的底表面间隔开的位置。

    Polymer encapsulated electrical devices
    6.
    发明授权
    Polymer encapsulated electrical devices 有权
    聚合物封装的电气设备

    公开(公告)号:US07352070B2

    公开(公告)日:2008-04-01

    申请号:US10608702

    申请日:2003-06-27

    IPC分类号: H01L23/29

    摘要: Improved encapsulated, overmolded and/or underfilled electrical components having a complete encapsulation, overmolding and/or underfilling with a coefficient of thermal expansion that is uniform and substantially free of gradients includes a polymeric matrix and an inorganic filler having a platelet geometric structure. The platelet structure of the filler allows a desirable coefficient of thermal expansion to be achieved using a very low level of filler material. This low level of filler material facilitates lower viscosity during forming of the encapsulation and/or overmolding, thereby facilitating complete filling of a mold cavity and underfilling of space between a circuit board and a semi-conductor chip electrically connected to the circuit board. In addition, the low viscosity has processing advantages that reduce the potential for damage to electrical components during encapsulation, overmolding and/or underfilling.

    摘要翻译: 具有完全包封,包覆成型和/或底部填充的具有均匀且基本上不含梯度的热膨胀系数的改进的包封的,包覆成型的和/或未充满电的电组件包括聚合物基质和具有血小板几何结构的无机填料。 填料的血小板结构允许使用非常低水平的填充材料来实现所需的热膨胀系数。 这种低水平的填充材料在形成封装和/或包覆成型期间有助于较低的粘度,从而有助于模制空腔的完全填充和电路板与电连接到电路板的半导体芯片之间的空间不足。 此外,低粘度具有加工优点,减少在封装,包覆成型和/或底部填充期间损坏电气部件的可能性。

    Circuit board with localized stiffener for enhanced circuit component reliability
    8.
    发明授权
    Circuit board with localized stiffener for enhanced circuit component reliability 有权
    具有局部加强件的电路板,用于增强电路部件的可靠性

    公开(公告)号:US07094975B2

    公开(公告)日:2006-08-22

    申请号:US10717839

    申请日:2003-11-20

    IPC分类号: H05K1/03

    摘要: A circuit board assembly comprising a laminate substrate and a surface mount device having a CTE less than that of the laminate substrate and attached with at least one solder joint to a first surface of the laminate substrate. The assembly further includes a localized stiffener attached to a second surface of the laminate substrate so as to be directly opposite the circuit device. The localized stiffener is formed of a material and is shaped so that, when attached to the laminate substrate, the stiffener is capable of increasing the thermal cycle fatigue life of the one or more solder joints that attach the device to the substrate.

    摘要翻译: 一种电路板组件,包括层压基板和表面安装装置,所述表面安装装置的CTE小于层压基板的CTE,并且与至少一个焊接接头连接到层叠基板的第一表面。 组件还包括附着到层叠基板的第二表面以便与电路装置直接相对的局部加强件。 局部加强件由材料形成并且被成形为使得当附接到层叠基板时,加强件能够增加将该装置附接到基板的一个或多个焊点的热循环疲劳寿命。

    Corrosive resistant flip chip thermal management structure
    9.
    发明授权
    Corrosive resistant flip chip thermal management structure 失效
    防腐倒装芯片散热管理结构

    公开(公告)号:US06560110B1

    公开(公告)日:2003-05-06

    申请号:US10079760

    申请日:2002-02-22

    IPC分类号: H05K720

    CPC分类号: H05K5/064 H05K7/20463

    摘要: A corrosive resistant electronics assembly 10 is provided including at least one heat generating electronics component 12 mounted on a substrate 14 and positioned within potting material 18. A thermally conductive block element 24 is thermally mounted to the at least one heat generating electronics component 12 and positioned within the potting material 18, thereby providing a corrosive resistant electronics assembly 10 with improved thermal dissipation.

    摘要翻译: 提供了一种抗腐蚀电子组件10,其包括安装在基板14上并位于灌封材料18内的至少一个发热电子元件12.导热块元件24热安装到至少一个发热电子元件12上并定位 在灌封材料18内,从而提供具有改善的热耗散的耐腐蚀电子组件10。