挠性电路是最早的印制电路,因为它的目的是取代软线。在以前的文章里我们谈到很多古老的东西。因此,这儿仅简要介绍二十世纪前半个世纪发生的重要事件。柏林 Albert Hanson 通过申请“使用电缆连接”的英国专利而开始了挠性电路的新纪元,几乎是100年前的事了。它的发明是针对解决电话交换机中密度互连的问题。Hanson 工艺虽称不上真正的“印制电路”工艺,但也是在挠性介电材 Flexible circuit is the earliest printed circuit, because it is designed to replace the cord. In the previous article we talked about many ancient things. Therefore, here are only some of the important events that took place in the first half of the twentieth century. Albert Hanson of Berlin started a new era of flexible circuits by applying for a UK patent “Using Cable Connections,” almost 100 years ago. Its invention is aimed at solving the problem of density interconnection in telephone exchanges. Although Hanson process can not be called a real “printed circuit” process, but also in the flexible dielectric