公开(公告)号：US4875047A

公开(公告)日：1989-10-17

申请号：US420877

申请日：1982-09-21

申请人： Shiro Baba

发明人： Shiro Baba

IPC分类号： H01L21/822 ,  G06F15/78 ,  H01L21/3205 ,  H01L23/52 ,  H01L23/528 ,  H01L27/00 ,  H01L27/04

CPC分类号： H01L23/528 ,  H01L2924/0002 ,  H01L2924/3011

摘要： A semiconductor circuit is constructed of a digital signal input circuit and an analog signal input circuit to be fed with an analog signal through a multiplexer. An analog signal wiring layer to be coupled to the input terminal of the analog signal input circuit is made not to intersect any digital signal wiring layer. As a result, an undesirable coupling capacitance to be formed by the intersecting wiring layers, if any, is not coupled to the analog signal wiring layer. Because of the absence of the undesirable coupling capacitance it is possible to substantially reduce the crosstalk of the digital signal from the digital signal wiring layer to the analog signal wiring layer.

摘要翻译： 半导体电路由数字信号输入电路和模拟信号输入电路构成，以通过复用器馈送模拟信号。 要耦合到模拟信号输入电路的输入端的模拟信号布线层不与任何数字信号布线层相交。 结果，由交叉布线层形成的不期望的耦合电容（如果有的话）没有耦合到模拟信号布线层。 由于不存在不希望的耦合电容，因此可以显着地减少数字信号从数字信号布线层到模拟信号布线层的串扰。