Test methods for electrical materials , interconnection structures and assemblies - part 1 : general test methods and methodology 电气材料互连结构和组装件的试验方法.第1部分:一般试验方法和分类法
Test methods for electrical materials , interconnection structures and assemblies - part 1 : general test methods and methodology ; amendment 1 电气材料互连结构和组装件的试验方法.第1部分:一般试验方法和分类法.修改件1
Insulation coordination for equipment within low - voltage systems . part 3 : use of coatings to achieve insulation coordination of printed board assemblies 低压系统内设备的绝缘配合.第3部分:应用涂覆层达到印制板组装件的绝缘配合
Small excursions from the optimally designed aperture size can lead to large bump height variations , which may , in extreme cases , produce open circuits in the assembled chips 跟最佳设计的孔细微的偏差可以导致大的凸起高度变化,它所产生的严重后果是组装件出现“开路” 。
Abstract : in this article , we discuss the calculation method of the heat analysis in the multilayer rectangular model system when there is heat source in the upper surface of the system . this method can be used in the heat analysis of the design of integrated circuit , micro - electrical assembly unit , etc 文摘:研究上表面含热源的多层矩形模型半解析的热分析计算方法.该计算方法可以用于集成电路、混合电路和微电子组装件的热设计工作
The master plan of these materials greatly influences the entire production process : the planning of the dependent parts depends on the planning result of the finished products and main assemblies , even if the finished products represent a small share of all the materials to be planned 对于整个生产过程具有很大影响的物料的主计划:相关的零件的计划的编制依赖于成品和主要组装件的计划编制结果,即使,成品占据所有以计划的物料的一小部分。
It is one of the pivotal factors to measure and control the geometrical size , shape error and positional error in order to ensure the device quality . so the online measurement of their geometrical size and shape error and positional error is the problem to be solved 大型工件几何尺寸、形位误差的测量和控制,是保证整套设备质量的关键因素之一,因而,大型零部件及组装件的整体几何参数和形位误差的测量、零部件加工的在线测量,就成为急需解决的问题之一。