0引言高密度互连(high density interconnector,HDI)板出现至今已30多年,在此期间HDI板市场不断扩大,技术也不断提升。HDI板制造工艺技术种类繁多,部分因不合时宜而被淘汰了,部分得到培育而成熟延续了。因此,了解一些HDI板制造技术演变...0引言高密度互连(high density interconnector,HDI)板出现至今已30多年,在此期间HDI板市场不断扩大,技术也不断提升。HDI板制造工艺技术种类繁多,部分因不合时宜而被淘汰了,部分得到培育而成熟延续了。因此,了解一些HDI板制造技术演变知识,会对掌握HDI板技术有所启示与帮助。展开更多
盲孔在承接AI(Artificial Intelligence)服务器产品用高密度互连(High Density Interconnector,HDI)印制板层与层之间的导通上起到关键性作用。相比其他消费电子类HDI,AI服务器产品用HDI的盲孔具有高厚径比、孔径极差小、玻纤突出短等...盲孔在承接AI(Artificial Intelligence)服务器产品用高密度互连(High Density Interconnector,HDI)印制板层与层之间的导通上起到关键性作用。相比其他消费电子类HDI,AI服务器产品用HDI的盲孔具有高厚径比、孔径极差小、玻纤突出短等特点及特殊要求,为盲孔制程管控和CO_(2)激光加工技术带来更高挑战。本文围绕直径100~127μm的盲孔,研究了HDI盲孔前处理过程铜厚波动对孔径影响,分析了CO_(2)激光参数在加工不同孔径时的影响规律。最终提出了盲孔前处理过程铜厚管控标准,获得了典型盲孔孔径和介厚的最优激光参数,从而实现HDI盲孔高质量、高可靠性加工。展开更多
The synthetic reaction of HDI biuret polyisocyanate was monitored by gel permeation chromatography (GPC). The best reaction process was selected according to the percent age of HDI biuret, and the influence of operati...The synthetic reaction of HDI biuret polyisocyanate was monitored by gel permeation chromatography (GPC). The best reaction process was selected according to the percent age of HDI biuret, and the influence of operation conditions on product was also analysed. The results demonstrated that the method of using steam with hexamethylene diisocyanate (HDI) monomer is the best process.Reaction temperature is controlled at 120?℃ and reaction time is controlled at about 7 hours.展开更多
文摘0引言高密度互连(high density interconnector,HDI)板出现至今已30多年,在此期间HDI板市场不断扩大,技术也不断提升。HDI板制造工艺技术种类繁多,部分因不合时宜而被淘汰了,部分得到培育而成熟延续了。因此,了解一些HDI板制造技术演变知识,会对掌握HDI板技术有所启示与帮助。
文摘盲孔在承接AI(Artificial Intelligence)服务器产品用高密度互连(High Density Interconnector,HDI)印制板层与层之间的导通上起到关键性作用。相比其他消费电子类HDI,AI服务器产品用HDI的盲孔具有高厚径比、孔径极差小、玻纤突出短等特点及特殊要求,为盲孔制程管控和CO_(2)激光加工技术带来更高挑战。本文围绕直径100~127μm的盲孔,研究了HDI盲孔前处理过程铜厚波动对孔径影响,分析了CO_(2)激光参数在加工不同孔径时的影响规律。最终提出了盲孔前处理过程铜厚管控标准,获得了典型盲孔孔径和介厚的最优激光参数,从而实现HDI盲孔高质量、高可靠性加工。
文摘The synthetic reaction of HDI biuret polyisocyanate was monitored by gel permeation chromatography (GPC). The best reaction process was selected according to the percent age of HDI biuret, and the influence of operation conditions on product was also analysed. The results demonstrated that the method of using steam with hexamethylene diisocyanate (HDI) monomer is the best process.Reaction temperature is controlled at 120?℃ and reaction time is controlled at about 7 hours.