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当设计表面安装(SM)组件时,要考虑的第一点是所选元器件能为应用范围执行合适的电气和/或机械功能。元器件功能和机械特性的标准化是达到这些要求的关键。其次,元器件的尺寸对检放设备来说是非常重要的因素.标准机构现有若干标准可为产品族提供一致性.在美国,如电子工业协会(EIA)和互连与封装电子电路协会(IPC)之类的工业机构在电子设计与制造标准的制订和协调方面起着领导作用.这些标准适用于电子元器件的电气与机械特性,适用于诸如印制电路、连接器和插座之类的其它元器件的可见与机械特性.元器件标准的制订由EIA负责,而IPC则负责制订其它所需的标准。
The first point to consider when designing surface mount (SM) components is that the components selected will perform the appropriate electrical and / or mechanical functions for the application. Standardizing component functions and mechanical characteristics is the key to meeting these requirements. Second, the size of the components is a very important factor in the inspection equipment. Standards bodies Several standards exist to provide product family consistency. In the United States, such as the Electronic Industries Association (EIA) and the Association for Interconnecting and Packaging Electronic Circuits (IPC) lead the development and coordination of electronic design and manufacturing standards that apply to the electrical and mechanical characteristics of electronic components, such as printed circuits, connectors and sockets Of the other components visible and mechanical properties. Components of the standard set by the responsibility of the EIA, while the IPC is responsible for the development of other required standards.