IPC-SM-840E Qualification and Performance Specification of Permanent Solder Mask and Flexible Cover Materials

NOTE: This Product is Downloadable Only. Single User License, Non-printable and Non-Device Transferable . Requires eMail address and contact information of End User. 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, resistances to solvents, and electrical requirements. Revision E incorporates requirements for flexible cover materials used as a flexible dielectric protective layer over etched conductors and other conductive features.19 pages. Released December 2010. IMPORTANT: Single-Device DRM-Protected DocumentThis document has single-device/user digital rights management (DRM) protection. This document will only be accessible by a single user on a single device. If you are purchasing this DRM-protected document for another user, you will need to provide contact information for that user when placing your order.