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    • 6. 发明授权
    • Leadless integrated circuit package
    • 无铅集成电路封装
    • US5535101A
    • 1996-07-09
    • US970901
    • 1992-11-03
    • Barry M. MilesFrank J. JuskeyKingshuk Banerji
    • Barry M. MilesFrank J. JuskeyKingshuk Banerji
    • H01L21/56H01L23/13H01L23/31H05K7/10
    • H01L23/13H01L21/563H01L23/3121H01L2224/16225H01L2224/32225H01L2224/73203H01L2224/73204H01L2924/01079H01L2924/01087H01L2924/15311
    • A semiconductor device package comprises an integrated circuit chip (10), a substrate (16), an encapsulant (30), and an organic coupling agent or underfill material (12) disposed between the integrated circuit chip and the first side of the substrate. The chip has a plurality of interconnection pads (14) disposed on an active surface of the chip at some minimum spacing "X." Each of the interconnect pads also has electrically conducting bumps (26) on them. The substrate has a circuit pattern (20) on a first side and an array of solder pads (23) spaced a certain distance apart on an opposite side of the substrate. The distance between these pads is greater than the minimum distance (X) between the interconnect pads on the IC. The circuit pattern is electrically connected to the array of solder pads by plated through holes (22). The length and width of the circuit carrying substrate is substantially greater than the length and width of the integrated circuit chip. The chip is mounted face down to the substrate with the electrically connecting bumps, such that at least some of the plated through holes in the substrate are covered by the chip. The polymeric encapsulant (30) covers the entire chip and substantially all of the first side of the substrate, providing a sealed package.
    • 半导体器件封装包括集成电路芯片(10),衬底(16),密封剂(30)以及设置在集成电路芯片和衬底的第一侧之间的有机耦合剂或底部填充材料(12)。 芯片具有多个布置在芯片的有效表面上的互连焊盘(14),该互连焊盘以一定的最小间距“X” 每个互连焊盘在其上也具有导电凸块(26)。 衬底在第一侧具有电路图案(20)和在衬底的相对侧上间隔一定距离的焊盘(23)阵列。 这些焊盘之间的距离大于IC上的互连焊盘之间的最小距离(X)。 电路图案通过电镀通孔(22)电连接到焊盘阵列。 电路承载衬底的长度和宽度远大于集成电路芯片的长度和宽度。 芯片通过电连接凸块面向下安装到基板上,使得基板中的至少一些电镀通孔被芯片覆盖。 聚合物密封剂(30)覆盖基片的整个芯片和基本上所有的第一侧,提供密封的封装。