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1.发明授权Trace conductor layout configuration for preserving signal integrity in control boards requiring minimum connector stub separation 失效跟踪导体布局配置，用于保持控制板中信号完整性，需要最小连接器短线间距
公开(公告)号：US5571996A
公开(公告)日：1996-11-05
申请号：US375327
申请日：1995-01-17
CPC分类号： H05K1/0248 , H05K1/0228 , H05K7/1429 , H05K2201/044 , H05K2201/09245 , H05K2201/09263 , H05K2201/09709 , H05K2201/09718
摘要： A circuit board is provided having a plurality of vias and uniformly spaced connector stubs arranged upon one or both outer surfaces of the control board. Sets of trace conductors are formed within the control board between the vias. The trace conductors are arranged in two planes within the control board, wherein trace conductors within one plane are laterally offset from trace conductors in the other plane. Laterally offset trace conductors allow close spacing of the trace conductor planes while maximizing the spacing between trace conductors and corresponding reference conductors also placed within the control board. Additionally, the trace conductors are serpentine-shaped when viewed from a perspective perpendicular to the planar surface of the control board. The serpentine shape, in conjunction with carefully controlled spacing between planes of trace conductors as well as between the trace conductor planes and reference conductors, provides high impedance trace conductors in a limited space area necessary to meet SCSI specifications.
摘要翻译： 设置有布置在控制板的一个或两个外表面上的多个通孔和均匀间隔的连接器短截线的电路板。 在通孔之间的控制板内形成导线组。 迹线导体布置在控制板内的两个平面中，其中一个平面内的迹线导体在另一个平面中横向偏离迹线导体。 横向偏移迹线导体允许迹线导体平面的紧密间隔，同时最大化迹线导体和也放置在控制板内的相应参考导体之间的间隔。 此外，当从垂直于控制板的平面表面的视角观察时，迹线导体是蛇形的。 蛇纹形状与跟踪导体的平面之间以及轨迹导体平面和参考导体之间的仔细控制的间距结合，在满足SCSI规范所需的有限空间区域内提供高阻抗迹线导体。
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