会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 18. 发明授权
    • Low-cost printed circuit board with integral heat sink for semiconductor package
    • 低成本印刷电路板,集成散热片用于半导体封装
    • US06337228B1
    • 2002-01-08
    • US09310660
    • 1999-05-12
    • Frank J. JuskeyJohn R. McMillanRonald P. Huemoeller
    • Frank J. JuskeyJohn R. McMillanRonald P. Huemoeller
    • H01L2144
    • H05K1/0204H01L23/3128H01L23/3677H01L24/45H01L24/48H01L2224/32225H01L2224/45144H01L2224/48091H01L2224/48227H01L2224/48464H01L2224/73265H01L2924/00014H01L2924/01019H01L2924/01078H01L2924/01079H01L2924/15311H05K3/4046H05K2201/0355H05K2201/10416Y10T29/49128Y10T29/49155H01L2924/00H01L2224/05599
    • A low-cost printed circuit board for a semiconductor package having the footprint of a ball grid array package has an integral heat sink, or “slug,” for the mounting of one or more semiconductor chips, capable of efficiently conducting away at least five watts from the package in typical applications. It is made by forming an opening through a sheet, or substrate, of B-stage epoxy/fiberglass composite, or “pre-preg,” then inserting a slug of a thermally conductive material having the same size and shape as the opening into the opening. The slug-containing composite is sandwiched between two thin layers of a conductive metal, preferably copper, and the resulting sandwich is simultaneously pressed and heated between the platen of a heated press. The heat and pressure forces the resin to the surface of the composite and into the space between the slug and the walls of the composite, where it solidifies, bonding the edges of the slug to the substrate within the opening and adhering the conductive layers to the upper and lower surfaces of the substrate. The resulting laminate can thereafter be processed as a convention printed circuit board to incorporate conventional circuit board features, e.g., circuit traces, wire bonding pads, solder ball mounting lands, and via holes.
    • 用于具有球栅阵列封装的占位面积的半导体封装的低成本印刷电路板具有用于安装一个或多个半导体芯片的整体散热器或“块状”,能够有效地将至少5瓦 从典型应用中的包装。 通过形成通过B阶环氧树脂/玻璃纤维复合材料的片材或基底的开口或“预浸渍”形成开口,然后将具有与开口相同的尺寸和形状的导热材料块塞入 开放 含块状复合材料夹在导电金属(优选铜)的两个薄层之间,并且所得到的夹层同时被压制并在加热压机的压板之间加热。 热和压力迫使树脂到复合材料的表面并进入组合体和组合物的壁之间的空间中,在该空间中它凝固,将块状物的边缘粘合到开口内的衬底上,并将导电层粘附到 衬底的上表面和下表面。 此后,所得到的层压板可以作为常规印刷电路板加工,以结合常规的电路板特征,例如电路迹线,引线接合焊盘,焊球安装焊盘和通孔。