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Establishes design concepts, guidelines and procedures for reliable printed wiring assemblies. Focuses on SMT or mixed technology PWAs, specifically addressing the interconnect structure and the solder joint itself. Discusses substrates, components, attachment materials, coatings and assembly processes and testing considerations. In addition, this document contains detailed appendices covering...
Printed board flatness is largely affected by a change in intrinsic properties through exposure to variances in temperature. The worst case deviation of the printed board from flatness may be at room temperature, peak temperature during reflow, or at any temperature in between. Printed board flatness must therefore be characterized during the entire reflow thermal cycle, and not solely at room...
The IPC-6013D covers qualification and performance requirements for flexible printed boards designed to IPC-2221 and IPC-2223. The flexible printed board may be single-sided, double-sided, multilayer or rigid-flex multilayer. All of these constructions may include stiffeners, PTHs, microvias, and blind/buried vias. IPC-6013D incorporates new and updated requirements for final finishes, rigid-to...
This specification covers the requirements for base materials that are referred to as laminate or prepreg. These are to be used primarily for rigid and multilayer printed boards for electrical and electronic circuits. This document contains 64 individual specification sheets that can be searched using keywords. These keywords allow the document's user to find materials of a similar nature, but...
This specification covers qualification and performance of rigid printed boards, including single-sided, double-sided, with or without plated-through holes, multilayer with or without blind/buried vias and metal core boards. It addresses final finish and surface plating coating requirements, conductors, holes/vias, frequency of acceptance testing and quality conformance as well as electrical...
This guideline standard is intended to aid in interpretation of the requirements in IPC-9191, "General Guidelines for Implementation of Statistical process Control," specifically for printed board assembly (PBA) manufacture. This document and IPC-9191 should be used together; the standards are cross-referenced to each other in the Appendices of this guideline. This standard promotes process...
This document is a tool for a customer or supplier organization's internal audit group to assess a statistical process control (SPC) system against the requirements of IPC-9191. This document should be used by customers and suppliers of any size and for any commodity. This tool can be used to perform an assessment of the use of SPC at both organizational and process levels. The questions in this...
Covers finished fabrics woven from aramid yarns that are intended as reinforcing material in laminated plastics for electrical and electronic use. All fabrics covered by this specification are plain weave. 9 pages. Released June 1990.
This standard, developed jointly by IPC and the Electronic Industries Association (EIA) establishes the construction detail requirements for balls and other terminal structures on Ball Grid Array (BGA) packages. It also establishes a set of designations and expectations for product performance. A large variety of terminal structures are recognized for a wide range of applications ranging from...
Discusses the many variables and problems associated with the process--from sample removal to micro-etch-- and the variables common to high volume microsection. The process variables and problems are organized so that the reader can research a specific issue or overview the variables of a process area. 31 pages. Released October 1993.
IPC-4121 provides industry-approved guidelines for selecting core constructions for multilayer printed wiring boards (PWBs). The specification sheets in the document categorize the different core constructions by laminate type and nominal thickness. The constructions are rated for characteristics such as dielectric constant (DK), dimensional stability (DS), flatness, smoothness and drillability...
Determines the nomenclature, chemical and physical requirements of paper made from cellulose fibers for PWB fabrication. IPC-4110 also includes specification sheets for selecting and purchasing these materials. 11 pages. Released August 1998.
Covers classification and requirements for finished fabrics woven from quartz fiber yarns that are intended as a reinforcing material in laminated plastics for electrical and electronic use. 13 pages. Released February 1992.
This standard is intended as a guideline in the proper preparation of a metallographic sample (microsection) of a printed board. The finished microsection is used for evaluating the quality of the laminate system and plated structures (e.g. PTHs and vias). Microsection sample preparation is regarded by many as a highly developed skill. The guidelines in this standard discuss the many variables and...
Covers the classification and requirements for finished fabrics woven from "S" glass, electrical grade glass fiber yarns intended as a reinforcing material in laminated plastics for electrical and electronic use. 12 pages. Released February 1992.
Provides information on multichip module technology, including parametric data, design and manufacturing information and a proposed categorization of various approaches to multichip interconnect substrate technologies based on dielectric family. 120 pages. Released August 1992.
IPC-9631 addresses concerns and considerations related to IPC-TM-650, Method 2.6.27, Thermal Stress, Convection Reflow Assembly Simulation. This document describes how the test method is intended for use and the rationale behind some of the protocols and requirements. This document was developed with the understanding that the test method will require special equipment and the proper set-up and...
Establishes the requirements for the evaluation of liquid and dry film solder mask material and for the determination of the acceptability of use on a standard printed board system. IPC-SM-840 provides two classes of requirements, T and H, to reflect functional performance requirements and testing severity based on industry/end use requirements. Coverage is given to adhesion, material qualification...
Printed board cleanliness has historically been an unknown factor in the quality assessment of unpopulated (bare) printed boards; this has often been attributed to a lack of understanding of materials and processes. This document addresses the various printed board fabrication processes and how each may impact, directly or indirectly, the final cleanliness of packaged bare printed boards and...
This guideline covers the requirements for resin coated copper foil intended for use in the formation of high density interconnect surface microvias for printed boards and printed board assemblies. 19 pages. Released November 2007.
Every electronics manufacturer, whether an original equipment manufacturer (OEM) or electronics manufacturing services (EMS) company, must determine if the unpopulated printed boards entering the assembly process have an adequate level of cleanliness. The question of “how clean is clean enough?” is one that has no definitive answer, as there is no "golden number" for board cleanliness. The issue...
Suppliers of raw materials for laminate manufacturing now have an industry-approved questionnaire to supply current and potential customers with a self-assessment of their facilities. IPC-1731 gives suppliers of raw materials the opportunity to create a profile of their manufacturing facility(s) that will be consistent with those developed by other industry suppliers. Using the Microsoft Word (TM)...
Provides surface mount device manufacturers and users with standardized methods for handling, packing, shipping and use of moisture/reflow sensitive components. These methods help avoid damage from moisture absorption and exposure to solder reflow temperatures that can result in yield and reliability degradation and damaged components. These procedures provide a minimum shelf life of 12 months...
The industry's sole guideline on the handling, packaging and storage of printed boards. The guidelines in this document are intended to protect printed boards from contamination, physical damage, solderability degradation and moisture uptake. Consideration is given to packaging material types and methods, production environment, handling and transport of product, and establishing baking profiles...
Implementing ball grid array (BGA) and fine-pitch ball grid array (FBGA) technology presents some unique challenges for design, assembly, inspection and repair personnel. IPC-7095C delivers useful and practical information to anyone currently using BGAs or FBGAs. Many issues have become especially important due to the change in the alloys of the ball, the ball shape, and the attachment procedures...
Coming Soon
IPC-7095E: Design and Assembly Process Implementation for Ball Grid Arrays (BGAs)
IPC-7530B: Guidelines for Temperature Profiling for Mass Soldering Processes (Reflow & Wave)
IPC-2294: Design Standard for Printed Electronics on Rigid Substrates
IPC-6904: Qualification and Performance Specifications for Printed Electronics on Rigid Substrates
IPC-4105: Specification for Metal Base Copper Clad laminates for Rigid Printed Boards