【摘要】 文章讨论了温度、湿度对底片胀缩的影响,并结合底片胀缩、单片胀缩的情况探讨了高层数印制板生产对位精度的控制方法。更多还原

【Abstract】 This paper discusses the effect of temperature and relative humidity and studies the methods ofregistration controlling for the PCB production in the expansion and the contract of film and substrates.更多还原