SIST EN 62326-4:2001

Overview

EN 62326-4:1997 - Printed boards, Part 4: Rigid multilayer printed boards with interlayer connections - Sectional specification - is a sectional standard published by CLC that applies to rigid multilayer printed boards irrespective of manufacturing method. It supplements the Generic Specification EN 62326-1 and provides the basis for agreements between manufacturer and user. The standard establishes uniform requirements, defines the characteristics to be assessed, and specifies the test methods to be used for quality conformance and for acceptance under the IECQ system.

Key topics and requirements

• Scope and applicability: Applies to rigid multilayer printed boards with interlayer connections (e.g., vias, plated-through holes) regardless of production technique.
• Supplemental requirements: Acts as a sectional specification that augments the EN 62326-1 generic requirements for printed boards.
• Characteristics to assess: Defines the properties and attributes that must be evaluated for conformance (dimensional features, electrical continuity/isolation, layer registration and integrity, surface finishes - in general terms as part of quality assessment).
• Uniform acceptance criteria: Establishes common acceptance levels to facilitate clear manufacturer–user contracts and consistent inspection.
• Test methods and quality conformance: Specifies the test procedures to be used to verify characteristics and ensure boards meet the IECQ acceptance framework.
• Contractual basis: Intended to be referenced in procurement documents and technical agreements between suppliers and end-users.

Practical applications

• Ensures consistent quality and repeatability for rigid multilayer printed circuit boards (PCBs) used in electronics manufacturing.
• Useful when ordering or supplying multilayer boards with interlayer connections for high-density or complex circuitry.
• Supports qualification and acceptance under the IECQ conformity assessment scheme, aiding global supply-chain trust.
• Applicable across industries requiring reliable multilayer PCBs: telecommunications, industrial electronics, instrumentation, medical devices and other sectors that rely on multilayer board performance.

Who should use this standard

• PCB manufacturers and fabricators producing rigid multilayer boards
• OEMs, procurement and quality managers specifying board acceptance criteria
• Inspection and testing laboratories performing conformance tests
• Contract manufacturers and design engineers coordinating supplier agreements

Related standards

• EN 62326-1 (Generic Specification) - the primary document that EN 62326-4 supplements.
• IECQ conformity assessment references - for boards intended to be accepted under IECQ.

Keywords: EN 62326-4, rigid multilayer printed boards, interlayer connections, printed boards, printed circuit boards, IECQ, EN 62326-1, quality conformance, sectional specification, test methods.