公开(公告)号：US4579772A

公开(公告)日：1986-04-01

申请号：US562664

申请日：1983-12-19

申请人： Anilkumar C. Bhatt ,  Michael J. Cibulsky ,  Donald E. Doran ,  Lawrence J. Hugaboom ,  James W. Knight

发明人： Anilkumar C. Bhatt ,  Michael J. Cibulsky ,  Donald E. Doran ,  Lawrence J. Hugaboom ,  James W. Knight

IPC分类号： D03D1/00 ,  D03D15/00 ,  D03D15/12 ,  H05K1/03 ,  B32B17/02 ,  B32B17/04

CPC分类号： D03D1/0082 ,  D03D1/00 ,  D03D15/00 ,  D03D15/0011 ,  D03D15/0083 ,  H05K1/0366 ,  D10B2505/02 ,  H05K2201/029 ,  H05K2201/0296 ,  Y10S428/901 ,  Y10T428/2973 ,  Y10T442/2008 ,  Y10T442/2951 ,  Y10T442/3114

摘要： Woven glass cloth and method of its manufacture suitable for use as a resin-impregnated substrate for printed circuits in which the major dimension or transverse axis of the elliptical warp yarns exceeds a predetermined fraction of that dimension of the fill yarns of the woven cloth. Multi-filament warp yarns are typically subjected to tensile stress during weaving and firing such that the yarn compaction prevents the thorough impregnation by a resin. The result is that voids are maintained along the innermost filaments of the yarn. These voids, when filled with materials other than resin, such as plating solution, ultimately produce circuit failures.

摘要翻译： 编织玻璃布及其制造方法适合用作印刷电路用树脂浸渍基材，其中椭圆经纱的主要尺寸或横轴超过织布的填充纱线的该尺寸的预定分数。 多丝经纱通常在织造和烧制期间经受拉伸应力，使得纱线压实防止树脂的彻底浸渍。 结果是沿着纱线的最内侧的细丝保持空隙。 当填充树脂以外的材料（如电镀溶液）时，这些空隙最终会导致电路故障。