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Evolution of a Wiring Concept: 30 Years of Flex-Rigid Circuit Board Production

机译:布线概念的演变:30年的柔性硬质电路板生产

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摘要

The development of printed circuit boards (PCBs) can be traced by looking at the evolution of rigid flex boards— starting with a simple single sided PCB going on to multilayer boards with controlled impedance, high density interconnections (HDI) and blind or buried vias. While 1974 saw the first flexible circuit made in mass production, in 1975 the first samples of rigid-flex boards were made. Only three years later, the production of a 4-layer rigid-flex PCB started in high volume (Figure 1). By 1980 250,000 pieces were made for telecom applications.
机译:可以通过观察刚性挠性板的发展来追溯印刷电路板(PCB)的发展-从简单的单面PCB到具有受控阻抗,高密度互连(HDI)以及盲孔或埋孔的多层板。 1974年看到了第一批大规模生产的柔性电路,而1975年则生产了第一批刚性-柔性板样品。仅仅三年后,就开始大批量生产4层刚挠性PCB(图1)。到1980年,为电信应用制造了250,000件。

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