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IPC 2221 Generic Standard On Printed Board Design.pdf


IPC 2221 Generic Standard on Printed Board Design




IPC 2221 is a standard developed by the Institute for Interconnecting and Packaging Electronic Circuits (IPC) that provides guidelines and requirements for the design of printed board assemblies. The standard covers various aspects of printed board design, such as materials, layout, electrical, mechanical, environmental, and testing. The standard aims to facilitate the interchangeability and improvement of products, as well as to assist the purchaser in selecting and obtaining the proper product for their particular need.


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The standard was first published in February 1998, superseding the previous IPC-D-275 standard from September 1991. The standard was revised in May 2003 as IPC-2221A, incorporating feedback from users and industry experts. The latest revision is IPC-2221B, which was published in November 2012. The standard is divided into eight sections, as follows:



  • Section 1: Scope



  • Section 2: Applicable Documents



  • Section 3: Design Requirements



  • Section 4: Materials



  • Section 5: Dimensional Requirements



  • Section 6: Electrical Requirements



  • Section 7: Mechanical Requirements



  • Section 8: Environmental Requirements




The standard also includes several appendices that provide additional information and examples on topics such as design for manufacturability (DFM), design for environment (DFE), design for testability (DFT), design for assembly (DFA), and design for reliability (DFR).


The standard is intended to be used in conjunction with other IPC standards that specify the performance and quality requirements for printed board products, such as IPC-6010 series, IPC-6012 series, IPC-6013 series, IPC-6016 series, and IPC-6018 series. The standard is also compatible with other industry standards and specifications, such as IEEE, ANSI, MIL, IEC, and ISO.


The standard can be obtained from the IPC website or from other authorized distributors. The standard is available in PDF format or in hard copy. The standard is also available in different languages, such as Chinese, French, German, Japanese, Korean, Russian, and Spanish.


The standard is widely used and recognized by the printed board industry and its customers. The standard helps to ensure the quality and reliability of printed board products, as well as to reduce the cost and time to market. The standard also promotes innovation and improvement of printed board design practices and technologies.


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