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IPC-6011A Generic Performance Specification for Printed Boards
1 SCOPE
This specification establishes the generic requirements for printed boards associated with the IPC-601X series of performance
specifications and their quality and reliability assurance requirements. *+
1.1 Purpose The intent of this specification is to allow the printed board user and supplier flexibility to develop optimum
procedures for the procurement and manufacture of printed boards.
1.2 Performance Classification This standard recognizes that electrical and electronic products are subject to classifications by
intended end-item use. Three general end-product classes have been established to reflect differences in producibility,
complexity, functional performance requirements, and verification (inspection/test) frequency. It should be recognized that
there may be overlaps of product between classes.
The user is responsible for defining the product class. The procurement documentation package shall state the product class and
any exceptions to specific parameters, where appropriate.
Criteria defined in this document reflect three classes, which are as follows:
Class 1 General Electronic Products – Includes products suitable for applications where the major requirement is function of
the completed assembly.
Class 2 Dedicated Service Electronic Products – Includes products where continued performance and extended life is required,
and for which uninterrupted service is desired but not critical. Typically, the end-use environment would not cause failures.
Class 3 High Performance/Harsh Environment Electronic Products – Includes products where continued high performance
or performance-on-demand is critical, equipment downtime cannot be tolerated, end-use environment may be uncommonly
harsh, and the equipment must function when required, such as life support or other critical systems.
1.3 Measurement Units All dimensions and tolerances in this specification are expressed in hard SI (metric) units and bracketed
soft imperial [inch] units. Users of this specification are expected to use metric dimensions. All dimensions greater than or
equal to 1.0 mm [0.0394 in] will be expressed in millimeters and inches. All dimensions less than 1.0 mm [0.0394 in] will be
expressed in micrometers and microinches.
1.3.1 Acceptability When Limiting Values Are Specified Specified limiting values of 63.5 mm maximum, 63.50 mm maximum,
and 63.500 mm maximum are taken to mean that, for the purposes of determining conformance to this specification, an observed
value shall be rounded off to the nearest 0.1 mm, 0.01 mm, 0.001 mm if metric units are used [to the nearest 0.1 inch, 0.01 inch,
0.001 inch if imperial units are used] and compared to the specified limiting value. Rounding applies to both maximum and
minimum values.
1.3.2 Rounding Convention When a figure is to be rounded to fewer digits than the total number available, the procedure shall
be as follows:
a) When the first digit discarded is less than 5, the last digit retained should not be changed. For example, 3.4634, if rounded
to 4 digits would be 3.463; if rounded to three digits, 3.46.
b) When the first digit discarded is greater than 5, or if it is a 5 followed by at least one digit other than 0, the last digit
retained should be increased by one unit. For example, 8.37652, if rounded to four digits would be 8.377; if rounded to
three digits, 8.38.
c) When the first digit to be discarded is exactly 5, followed only by zeros, the last digit retained should be rounded upward
if it is an odd number, but no adjustment made if it is an even number. For example, 4.365, when rounded to three digits,
becomes 4.36. The number 4.355 would also round to the same value 4.36, if rounded to three digits.
The final rounded figure shall be obtained from the most precise value available and not from a series of successive roundings.
1.3.3 Metric to Soft Imperial Conversion When converting dimensions from metric to imperial, the imperial conversion may be
rounded due to measurement equipment accuracy limitations as follows:
a) When converting metric numbers greater than 1.0 mm, the imperial number may be rounded to the nearest thousandth of
an inch (0.001 in).
b) When converting metric numbers less than 1.0 mm, the imperial number may be rounded to the nearest hundred
microinches (100 µin).
IPC-6011A
February 2025
1
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IPC-6011A_2025 Generic Performance Specification for Printed Boards.pdf
- 1. IPC-6011A 2025 - February Generic Performance Specification for Printed Boards An international standard developed by IPC
- 2. Copyright 2025 by IPC International, Inc. (“IPC”). All rights reserved. These materials may only be used in accordance with the terms of any end-user license granted by IPC. No other uses of this document in whole or in part are allowed, including, but not limited to, no commercial use, reproduction, retransmission, sharing, editing or creating of derivative works, without the prior written permission of IPC. IPC Mission About IPC Standards IPC Position Statement on Specification Revision Change Standards Improvement Recommendations IPC is a global trade association dedicated to furthering the competitive excellence and financial success of its members, who are participants in the electronics industry. In pursuit of these objectives, IPC will devote resources to management improvement and technology enhancement programs, the creation of relevant standards, protection of the environment, and pertinent government relations. IPC encourages the active participation of all its members in these activities and commits to full cooperation with all related organizations. IPC standards and publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. Existence of such IPC standards and publications shall not in any respect preclude any entity from manufacturing or selling products not conforming to such IPC standards and publication, nor shall the existence of such IPC standards and publications preclude their voluntary use. IPC standards and publications are approved by IPC committees without regard to whether the IPC standards or publications may involve patents on articles, materials or processes. By such action, IPC does not assume any liability to any patent owner, nor does IPC assume any obligation whatsoever to parties adopting an IPC standard or publication. Users are wholly responsible for protecting themselves against all claims of liabilities for patent infringement. The use and implementation of IPC standards and publications are voluntary and part of a relationship entered into by customer and supplier. When an IPC standard or publication is revised or amended, the use of the latest revision or amendment as part of an existing relationship is not automatic unless required by the contract. IPC recommends the use of the latest revision or amendment. IPC welcomes comments for improvements to any standard in its library. All comments will be provided to the appropriate committee. If a change to technical content is requested, data to support the request is recommended. Technical comments to include new technologies or make changes to published requirements should be accompanied by technical data to support the request. This information will be used by the committee to resolve the comment. To submit your comments, visit the IPC Status of Standardization page at www.ipc.org/status.
- 3. IPC-6011A Developed by the Performance Standards Subcommittee (D-33) of the Rigid Printed Board Committee (D-30) of IPC Generic Performance Specification for Printed Boards Users of this publication are encouraged to participate in the development of future revisions. Contact: IPC 3000 Lakeside Drive, Suite 105N Bannockburn, Illinois 60015-1249 Tel 847 615.7100 Fax 847 615.7105 Supersedes: IPC-6011 July 1996 IPC Standards and Artificial Intelligence (AI) Statement – 2025 IPC explicitly prohibits: • The integration or transfer of any data whether in the form of IPC books, standards, metadata, or other formats—into AI engines or algorithms by any person or entity, including authorized distributors and their end users. • Activities involving data harvesting, text and data mining, enrichment, or the creation of derivative works based on this data, including the use of automated data collection methods or artificial intelligence. Any breach of these provisions is considered a copyright infringement unless expressly and formally authorized by IPC.
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- 5. &*+ Acknowledgment Any document involving a complex technology draws material from a vast number of sources across many continents. While the principal members of the Performance Standards Subcommittee (D-33) of the Rigid Printed Board Committee (D-30) are shown below, it is not possible to include all of those who assisted in the evolution of this standard. To each of them, the members of the IPC extend their gratitude. Rigid Printed Board Committee Chair Mark Buechner BAE Systems Performance Standards Subcommittee Chair Steven Bowles Lockheed Martin Space Vice Chair Dan Loew L3Harris Technical Liaison of the IPC Board of Directors Bob Neves Reliability Assessment Solutions Inc. Contributing Performance Standards Subcommittee Members Andy Bautista Boeing Research & Development Scott Bowles Lockheed Martin Space Don Dupriest Lockheed Martin Missiles & Fire Control Mahendra Gandhi Northrop Grumman Space Systems Timothy Glaze Advanced PCB - Anaheim Allen Holl TTM Technologies Frank Huijsmans PIEK International Education Centre (I.E.C.) BV Allen Keeney Johns Hopkins University – Applied Physics Laboratory Nick Koop TTM Technologies Kevin Kusiak Lockheed Martin Corporation Matthew McQueen NSWC Crane Michael Miller NSWC Crane Naji Norder National Instruments Gerry Partida Summit Interconnect - Anaheim Trevor Patterson Hughes Circuits, Inc. Jan Pedersen NCAB Group AB Alan Preston TTM Technologies Jose Rios RTX Raytheon Steven Roy Roy Design and Manufacturing Service Kevin Tlaxcalteca Summit Interconnect - Orange Udo Welzel Robert Bosch GmbH Richard Wessel DuPont Electronics & Imaging IPC-6011A February 2025 iii Copyright 2025 by IPC International, Inc. All rights reserved.
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- 7. v Copyright 2025 by IPC International, Inc. All rights reserved. Table of Contents 1 SCOPE ...........................................................................1 1.1 Purpose ......................................................... 1 1.2 Performance Classification........................... 1 1.3 Measurement Units....................................... 1 1.3.1 Acceptability When Limiting Values Are Specified........................................................ 1 1.3.2 Rounding Convention .................................. 1 1.3.3 Metric to Soft Imperial Conversion.............. 1 1.4 Definition of Requirements........................... 2 1.5 Process Control Requirements...................... 2 1.6. Conflict.......................................................... 2 1.6.1 Clause References......................................... 2 2 APPLICABLE DOCUMENTS .........................................2 2.1 IPC ................................................................ 2 2.2 International Standards Organization ........... 2 2.3 JEDEC........................................................... 3 2.4 ASQ............................................................... 3 3 REQUIREMENTS ..........................................................3 3.1 General.......................................................... 3 3.1.1 Design Data Protection ................................. 3 3.2 Terms and Definitions................................... 3 3.3 Printed Board Detail Requirements............... 3 3.3.1 Production Master......................................... 3 3.4 Deviations and Waivers................................. 4 3.5 Qualification Assessment.............................. 4 3.5.1 Self Declaration............................................. 4 3.5.2 Verification of Product Characteristics in the Self Declaration................................... 4 3.5.2.1 Production Data............................................. 4 3.5.2.2 User Correlation............................................ 4 3.5.2.3 Sample Qualification..................................... 4 3.5.3 Verification of Quality Profile in Self Declaration.................................................... 4 3.5.3.1 Internal Assessment....................................... 4 3.5.3.2 User Assessment............................................ 4 3.5.3.3 Independent Third Party Assessment............ 4 3.6 Quality Assurance Program........................... 4 3.6.1 Process Control............................................. 5 3.6.1.1 Reduction of Quality Conformance Testing .5 3.7 Material ........................................................ 5 4 QUALITY ASSURANCE PROVISIONS .........................5 4.1 Responsibility for Inspection........................ 5 4.1.1 Test Equipment and Inspection Facilities...... 5 4.1.2 Contract Services........................................... 5 4.2 Materials Inspection...................................... 5 4.3 Quality Conformance Inspection.................. 5 4.3.1 Inspection of Product for Delivery................ 5 4.3.2 Quality Conformance.................................... 5 4.3.2.1 C=0 Zero Acceptance Number Sampling Plan............................................... 5 4.3.2.2 Inspection Lot................................................ 6 4.3.2.3 Traceability.................................................... 6 4.3.2.4 Document Control Procedures...................... 6 4.3.2.5 Acceptance.................................................... 6 4.3.2.6 Rejected Lots................................................. 6 4.4 Periodic Quality Conformance Testing......... 7 4.4.1 Noncompliance.............................................. 7 5 PREPARATION FOR DELIVERY.....................................7 5.1 Handling, Packaging and Storage................. 7 Tables Table 4-1 C=0 Sampling Plan per Lot Size1 .................. 6
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- 9. *+ IPC-6011A Generic Performance Specification for Printed Boards 1 SCOPE This specification establishes the generic requirements for printed boards associated with the IPC-601X series of performance specifications and their quality and reliability assurance requirements. *+ 1.1 Purpose The intent of this specification is to allow the printed board user and supplier flexibility to develop optimum procedures for the procurement and manufacture of printed boards. 1.2 Performance Classification This standard recognizes that electrical and electronic products are subject to classifications by intended end-item use. Three general end-product classes have been established to reflect differences in producibility, complexity, functional performance requirements, and verification (inspection/test) frequency. It should be recognized that there may be overlaps of product between classes. The user is responsible for defining the product class. The procurement documentation package shall state the product class and any exceptions to specific parameters, where appropriate. Criteria defined in this document reflect three classes, which are as follows: Class 1 General Electronic Products – Includes products suitable for applications where the major requirement is function of the completed assembly. Class 2 Dedicated Service Electronic Products – Includes products where continued performance and extended life is required, and for which uninterrupted service is desired but not critical. Typically, the end-use environment would not cause failures. Class 3 High Performance/Harsh Environment Electronic Products – Includes products where continued high performance or performance-on-demand is critical, equipment downtime cannot be tolerated, end-use environment may be uncommonly harsh, and the equipment must function when required, such as life support or other critical systems. 1.3 Measurement Units All dimensions and tolerances in this specification are expressed in hard SI (metric) units and bracketed soft imperial [inch] units. Users of this specification are expected to use metric dimensions. All dimensions greater than or equal to 1.0 mm [0.0394 in] will be expressed in millimeters and inches. All dimensions less than 1.0 mm [0.0394 in] will be expressed in micrometers and microinches. 1.3.1 Acceptability When Limiting Values Are Specified Specified limiting values of 63.5 mm maximum, 63.50 mm maximum, and 63.500 mm maximum are taken to mean that, for the purposes of determining conformance to this specification, an observed value shall be rounded off to the nearest 0.1 mm, 0.01 mm, 0.001 mm if metric units are used [to the nearest 0.1 inch, 0.01 inch, 0.001 inch if imperial units are used] and compared to the specified limiting value. Rounding applies to both maximum and minimum values. 1.3.2 Rounding Convention When a figure is to be rounded to fewer digits than the total number available, the procedure shall be as follows: a) When the first digit discarded is less than 5, the last digit retained should not be changed. For example, 3.4634, if rounded to 4 digits would be 3.463; if rounded to three digits, 3.46. b) When the first digit discarded is greater than 5, or if it is a 5 followed by at least one digit other than 0, the last digit retained should be increased by one unit. For example, 8.37652, if rounded to four digits would be 8.377; if rounded to three digits, 8.38. c) When the first digit to be discarded is exactly 5, followed only by zeros, the last digit retained should be rounded upward if it is an odd number, but no adjustment made if it is an even number. For example, 4.365, when rounded to three digits, becomes 4.36. The number 4.355 would also round to the same value 4.36, if rounded to three digits. The final rounded figure shall be obtained from the most precise value available and not from a series of successive roundings. 1.3.3 Metric to Soft Imperial Conversion When converting dimensions from metric to imperial, the imperial conversion may be rounded due to measurement equipment accuracy limitations as follows: a) When converting metric numbers greater than 1.0 mm, the imperial number may be rounded to the nearest thousandth of an inch (0.001 in). b) When converting metric numbers less than 1.0 mm, the imperial number may be rounded to the nearest hundred microinches (100 µin). IPC-6011A February 2025 1 Copyright 2025 by IPC International, Inc. All rights reserved.