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1前言近年来,伴随着以数字照相机为首的电子电器产品的小型化、多功能化,对印制电路板的需求也越来越多样化。由于挠性印制板可充分利用有效空间设计并具有高密度、耐高频的性能特点,其需求急剧增加。挠性印制板特别刚挠结合印制板所采用的材料种类繁多,往往又都是复合材料,化
1 Introduction In recent years, with the miniaturization and versatility of electronic and electronic products led by digital cameras, the demand for printed circuit boards has also become increasingly diverse. Demand for flexible printed boards has dramatically increased due to their ability to take full advantage of efficient space design and high-density, high-frequency performance characteristics. Flexible PCB Special rigid-flex PCB with a wide range of materials used, often both are composite materials,