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    • 89. 发明申请
    • Substrate and method of manufacturing the same
    • 基材及其制造方法
    • US20040016570A1
    • 2004-01-29
    • US10450182
    • 2003-06-10
    • Reo YamamotoYoshihide Yamamoto
    • H05K001/00H01R012/04H05K003/02
    • H01L23/49811H01L23/15H01L23/49827H01L2924/0002H05K1/0206H05K1/0306H05K1/114H05K3/0008H05K3/0082H05K3/064H05K3/246H05K3/4061H05K2201/0317H05K2201/0347H05K2201/10674H05K2203/167Y10T29/49156Y10T29/49165H01L2924/00
    • It is an object to provide a method of efficiently manufacturing a double-sided circuit board having a metallic via hole which can suitably be used as a submount for mounting a semiconductor device, that is, a substrate in which the electrical contact of a metallic via hole and a circuit pattern is excellent and an element can easily be bonded and positioned. In a ceramic substrate having a via hole filled with a conductive material, a ceramic portion of at least one of faces of the ceramic substrate has a surface roughness of Ranull0.8 nullm, a substrate in which the conductive material filled in the via hole present on at least one of the faces is protruded from a surface of the face with a height of 0.3 to 5.0 nullm is used as a material substrate and a conductive layer is formed on the surface, and subsequently, the conductive layer is patterned and a solder film pattern for element mounting is formed based on a position of a convex portion of the conductive layer which results from the via hole present on an underlaid portion of the conductive layer.
    • 本发明的目的是提供一种有效地制造具有金属通孔的双面电路板的方法,该金属通孔适合地用作安装半导体器件的基座,即其中金属通孔 孔和电路图案是优异的,元件可以容易地粘合和定位。 在具有填充有导电材料的通路孔的陶瓷基板中,陶瓷基板的表面的至少一面的陶瓷部分的表面粗糙度Ra <0.8μm,其中填充在通孔中的导电材料 存在于至少一个面上的表面的表面的高度为0.3〜5.0μm的面的表面被用作材料基板,并且在表面上形成导电层,接着,对导电层进行图案化和 基于存在于导电层的底层部分上的通孔产生的导电层的凸部的位置形成用于元件安装的焊料膜图案。