描述 简要介绍 （英文） 更新了新技术，包括无铅、免清洗及环保化学品。 本文件集合了电路板及组件清洗信息。该修订版本主要阐述了制造和组装运营中材料、制程及污染物之间的关系。它还提出清洁度评估方案和涉及清洁度的制程控制方案。配有彩图帮助理解。全文共200页。2011年7月修订。2013年8月翻
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本标准规定了电气绝缘化合物（敷形涂覆材料）的鉴定和符合性要求，并设计和构建了充分且必要的测试项目来获取对材料性能的信心。本标准包括： 敷形涂覆材料的鉴定及鉴定效力保持（表3-1，A 列及B 列）。 敷形涂覆材料属性的质量符合性（表3-1，C 列）。 本标准中，敷形涂覆是指用于印制线路组件的保护涂层。敷形涂覆可起到防潮、防污物和电气绝缘的作用，但不是作为单独起机械保护作用的涂层。
本指南描述了可用于评估柔性的、可拉伸的和可穿戴的应用中所采用的印刷电子器件的柔性和拉伸性能的测试。26页。2017年3月发布。2019年3月翻译.
本文件是IPC电化学迁移（ECM）技术组的成果。本文件的目的是为如何更好地使用IPC-TM-650测试方法2.6.25《耐导电阳极丝（CAF）测试》以及其他内部电化学迁移（ECM）测试提供指南，以评估机械应力、层压板材料断裂、离子污染、压合层压板前湿气含量以及其它材料加工特性在层压材料中形成的导电路径，例如导电阳极丝（CAF），一种特殊类型的ECM失效模式，对测试结果的影响。该内部ECM测试方法提供了一个已经证实的标准，用于确定由于通孔偏移从而显著降低内部导体间绝缘电阻情况的风险，该现象发生在层压板内部，而不是在印制板的表面上
本文件对印制板（PWB）制造过程中印制板组件的应变测试制定了详细的指南，这些制造过程包括组装、测试、系统集成及印制板的周转/运输。 本文件建议的程序使印制板组装厂能够独立进行所要求的应变测试，并为印制板翘曲测量和风险等级评估提供了量化的方法。
Dieses Dokument unterstützt Richtlinien für das Design und die Herstellung von Druckschablonen für Lotpasten und Kleber für die Oberflächenmontage für THT- und THT/SMD-Technologie. Darin eingeschlossen sind die Unterschiede zwischen bleihaltigen und bleifreien Lotpasten, Überdruckung, Doppeldruck und Stufenschablonen Designs. Enthalten sind ebenfalls Beispiele für ein Bestellformular und die...
IPC-6903A标准提供了62个印刷电子行业设计和制造相关的术语及定义。IPC-6903A标准为全球印刷电子行业提供一个共同的语言和知识
This technical paper covers the testing and evaluation of polymeric conformal coatings for moisture and insulation resistance (MIR) and dielectric withstanding voltage (DWV). This effort was initiated by the IPC Conformal Coating Task Group to support technical decisions for IPC coating specification CC-830 as part of the Revision C process. MIR testing was done per a modified method of IPC-TM-650...
A discussion was held in the 5-33AWG (ad hoc working group), on things that conformal coat professionals (materials and processes) wish designers knew about conformal coating. The 5-33AWG group is comprised of individuals from OEMs, coating suppliers, and test lab personnel.
This guideline provides an overview of the design process flow for printed electronics based devices, modules and units, and final products.The intent of IPC/JPCA-2291 is to establish a design process flow that will facilitate and improve the practice of printed electronics design. IPC/JPCA-2291 identifies documents such as standards that can be used to assist during the design process flow. 24...
IPC-HDBK-840 supplements the solder mask requirements established in IPC specifications such as IPC-SM-840 and IPC-6012 by providing detailed information on solder mask types, application processes, pre- and post- assembly processes, characteristics and properties that are useful in the selection and use of the most appropriate mask type for a given application. Applicable to solder mask...
The IPC-4592 standard establishes the classification system, the qualification and quality conformance requirements for functional dielectric materials used in printed electronics applications. The intended applications include but are not limited to dielectric materials as protective dielectric or insulator/insulation layer(s), capacitive layer(s), crossovers and encapsulant(s) for devices in...
This document provides comprehensive data to help users more easily determine both material capability and compatibility for flexible and rigid base dielectric materials for manufacture of printed electronics. It includes base material specification sheets that have been updated with the newest properties for the specification material types. It establishes the most current classification system...
This document provides comprehensive data to help users more easily determine material performance, capabilities, and compatibility of functional conductive materials for the manufacture of printed electronics. It includes: classification schemes based on composition, conductor type, and post-processing structure; functional conductive material specification sheets to present properties for the...
The IPC-WP-021 white paper considers conformal coatings, like many high-performance materials, have evolved considerably since the 1990s. New coatings, such as fluoropolymers or hybrid coatings, have come on the market, many of which offer superior protection characteristics, but do not fit into the existing classifications of either MIL-I-46058 or IPC-CC-830. The IPC-WP-021 white paper discusses...
Establishes mechanical drop and shock and test guidelines for assessing solder joint reliability of printed board assemblies from system to component level. This document addresses methods to define mechanical shock use-conditions, methods to define system level, system printed board level and component test board level testing that correlate to such use conditions and guidance on the use of...
This document provides tests that record changes in surface insulation resistance (SIR) on a representative sample of a printed circuit assembly. It quantifies any deleterious effects that might arise from solder flux or other process residues left on external surfaces after soldering, which can cause unwanted electrochemical reactions that grossly affect reliability. It uses test vehicles that...
Surface mount pad cratering typically initiates prior to detection by existing electrical monitoring test methods. There are limited instrumentation techniques that are currently available that can identify non-electrical damage and its location to a high degree of accuracy. This guideline document establishes an acoustic emission (AE) method to evaluate the performance and reliability of surface...
While there are a variety of industry test vehicles for the examination of materials compatibility, most available test boards leave something to be desired as there is often a dramatic difference in materials between such test boards and produced assemblies. A test vehicle was needed which could be used for both ion chromatography and SIR testing that would be more representative of mainstream...
Cleaning of stencils and misprinted PCBs has taken an increasingly important role in surface mount technology. Fine and ultra-fine pitch lands, together with other advanced packages, place new demands on stencil cleaning. Paste volume is a critical issue for fine, ultra-fine, chip-scale, BGA and flip-chip components. Insufficient solder due to clogging of stencil apertures is a primary cause of...
The IPC-7091 intends to provide useful and practical information to those who are designing, developing or using 3D-packaged semiconductor components or those who are considering 3D package implementation. The 3D semiconductor package may include multiple die elements—some homogeneous and some heterogeneous. The package may also include several discrete passive SMT devices, some of which are...
IPC-2292 standard establishes specific requirements for the design of printed electronic applications and their forms of component mounting and interconnecting structures on flexible substrates. Flexible substrates, as pertaining to IPC-2292 standard, are materials or devices which have some amount of flexibility or bendability (not rigid) but are not considered to be stretchable (e.g., fabrics...
Manufacturers of high reliability electronics have been working for many years to mitigate the deleterious effects of tin whisker formation. One highly effective means to suppress the growth of tin whiskers is to replace the pure tin plating with reflowed tin-lead solder. One approach is to fully consume the tin plating by tin-lead solder during the SMT reflow process. This phenomenon of tin...
IPC-WP-019A a revised white paper provides an overview of ionic cleanliness requirements, providing examples of tests and requirements for acceptability from a residue/cleanliness standpoint. The history of ROSE testing is also provided, with explanations of the shortcomings of that testing.
This original research was a cooperative effort between the EMPF and IPC, released as EMPF-RR-0013 in 1993 for better understanding of ionic cleanliness testing. The IPC Ionic Conductivity/Ion Chromatography Test Task Group has validated its continued importance and relevance to the cleaning community and IPC-TR-583 is the result. It includes how solvent temperature influences the final...