WIRING SUBSTRATE, MULTI-PATTERN WIRING SUBSTRATE, AND MANUFACTURING METHOD THEREFOR
    80.
    发明公开
    WIRING SUBSTRATE, MULTI-PATTERN WIRING SUBSTRATE, AND MANUFACTURING METHOD THEREFOR 审中-公开
    VERDRAHTUNGSSUBSTRAT,MEHRFACH STRUKTURIERTES VERDRAHTUNGSSUBSTRAT UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP2712281A1

    公开(公告)日:2014-03-26

    申请号:EP12785591.4

    申请日:2012-02-01

    Abstract: Provided are a wiring substrate having few burrs in the vicinity of a notch located on a side surface of a substrate main body, in which breakage of a conductor layer provided on the inner wall of the notch is suppressed; a multi-piece wiring substrate array for providing a plurality of the wiring substrates; and a method for reliably producing the multi-piece wiring substrate array.
    The wiring substrate 1a includes a substrate main body kp which is formed of a plurality of stacked ceramic layers S, which has a rectangular shape in plan view, which has a pair of opposite first and second main surfaces 3 and 2, and which has side surfaces 4 each being located between the paired main surfaces 3 and 2, and having a groove surface 6 located on a side toward the first main surface (back surface) 3 and a fracture surface 5 located between the groove surface 6 and the second main surface 2; and a notch 11 which has a concave shape in plan view, and which is provided on a side surface 4 only on a side toward the first main surface 3 so as to extend in a thickness direction of the side surface 4, wherein, in the side surface 4 having the notch 11, the boundary 7 between the groove surface 6 and the fracture surface 5 has first curved portions R1 on opposite sides of the notch 11, the first curved portions R1 being convex toward the first main surface 3 of the substrate main body kp in side view; and also has a second curved portion R2 on a second-main-surface side of the notch 11, the second curved portion R2 being convex toward the second main surface (front surface) 2 of the substrate main body kp in side view.

    Abstract translation: 提供一种布线基板,其在位于基板主体的侧面的凹口附近具有较少的毛刺,其中抑制了设置在凹口内壁上的导体层的断裂; 用于提供多个所述布线基板的多片式布线基板阵列; 以及可靠地制造多片式布线基板阵列的方法。 布线基板1a包括由平面图形成为矩形形状的多个层叠陶瓷层S形成的基板主体kp,该堆叠陶瓷层S具有一对相对的第一主面3和第二主面2,并且具有侧面 表面4位于成对的主表面3和2之间,并且具有位于朝向第一主表面(背面)3的一侧的槽表面6和位于槽表面6和第二主表面之间的断裂表面5 2; 以及在俯视图中具有凹形形状的凹口11,并且仅在侧面4上设置在侧面4的侧面上,以沿着侧面4的厚度方向延伸,其中,在 具有凹口11的侧面4,槽表面6与断裂面5之间的边界7在凹口11的相对侧上具有第一弯曲部分R1,第一弯曲部分R1朝向基底的第一主表面3凸出 主体kp在侧视图; 并且在凹口11的第二主表面侧上还具有第二弯曲部分R2,第二弯曲部分R2在侧视图中朝向基板主体kp的第二主表面(前表面)2凸出。

Patent Agency Ranking