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    • 65. 发明公开
    • LAMINATED SINTERED CERAMIC WIRING SUBSTRATE, AND SEMICONDUCTOR PACKAGE CONTAINING WIRING SUBSTRATE
    • LAMINIERTES GESINTERTERS KERAMISCHES VERDRAHTUNGSSUBSTRAT UND HALBLEITERPAKET MIT DEM VERDRAHTUNGSSUBSTRAT
    • EP2753159A1
    • 2014-07-09
    • EP11871755.2
    • 2011-08-29
    • NGK Insulators, Ltd.
    • TANI, MakotoHIRAI, TakamiYANO, ShinsukeTANABE, Daishi
    • H05K3/46
    • H05K3/4629H01L23/49822H01L23/49838H01L23/5283H01L2924/0002H05K1/0242H05K3/4623H05K2201/09227H05K2201/09236H05K2201/098H05K2201/09827H01L2924/00
    • In the laminated and sintered ceramic circuit board according to the present invention, at least a portion of the inplane conductor is fine-lined. Nevertheless, as described above, by means of the configuration that the shape of the cross-section of the fine-lined inplane conductor is trapezoid, and the height (a), the length (c) of the lower base and the length (d) of the upper base of the trapezoidal cross-section, and the interval (b) between the lower bases of the trapezoidal cross-section of the inplane conductors adjacent in a plane parallel to the principal surfaces of the board meet a certain relation, problems such as frequent occurrences of open of wiring (disconnection) and decrease in reliability under high temperature and high humidity environment can be suppressed. Namely, the present invention provides a laminated ceramic circuit board with low open failure rate, short-circuit failure rate and high reliability against high temperature and high humidity, in spite of its fine-lined wiring layer. In addition, the present invention provides a fast, downsized and short-in-height (thin) semiconductor package with high reliability by using such a circuit board.
    • 在根据本发明的层压和烧结陶瓷电路板中,面内导体的至少一部分是精细的。 然而,如上所述,通过以下结构,细线面内导体的截面形状为梯形,高度(a),下基板的长度(c)和长度(d )和梯形截面的上基部之间的间隔(b)与平行于板的主面的平面相邻的面内导体的梯形截面的下基座之间的间隔(b)满足一定关系,问题 可以抑制在高温高湿环境下频繁发生布线(断开)和可靠性的降低。 也就是说,本发明提供了一种具有低开路故障率,短路故障率和高温高湿可靠性的层压陶瓷电路板,尽管其精细布线层。 此外,本发明通过使用这样的电路板提供了具有高可靠性的快速,小型化和高度低(薄)的半导体封装。