This is a redline document showing the changes from IPC-7711/21B to IPC-7711/21C. This 790+ page document provides a side-by-side comparison of the two documents and includes the figures. The document shows the deleted/changed text in the IPC-7711/21B pages and the new/revised text in purple highlights in the IPC-7711/21C pages. Yellow pop-up boxes are also present in the IPC-7711/21C pages to...
The Amendment 1 to IPC-4556 made the following changes to the base specification: a) It added the absolute value of the maximum thickness for the immersion gold of 0.070 μm [2.8 μin] that accompanies the statistically valid minimum immersion gold thickness; b) It added two more photomicrograph images to provide better information on identifying nickel hyper corrosion; c) It added the basis of...
Specification for Electroless Nickel/Immersion Gold (ENIG) Plating for Printed Circuit Boards Amendment 1 to IPC-4552 replaces the Table 3-1 Requirements of Electroless Nickel Immersion Gold Plating plus also replaces all of sections 3.2.1 Immersion Nickel Thickness and 3.2.2 Immersion Gold Thickness in the original release of the IPC-4552. The Amendment 1 permits the use of thinner gold (≥4 µm...
Specification for Electroless Nickel/Immersion Gold (ENIG) Plating for Printed Circuit Boards Amendment 2 to IPC-4552 is a new section in the original release of the IPC-4552. The Amendment 2 provides the “rules” by which any rework and/or repair of a printed board's ENIG surface finish is allowed. Effective September 2012.
IPC-9121 AM1 is an amendment to IPC-9121 which provides updates to the Hole Preparation/Protection and Interconnect Formation sections, covering troubleshooting topics and guidance on nonconductive plugging paste, microvias and pattern plating rim voids. IPC-9121 AM1 also includes a new section on Flexible Circuits.
The IPC-1791-Am1 provides revisions and clarifications for requirements pertaining to CAGE Code, citizenship, security, foreign person access, traceability records and NIST SP 800-171 compliance.
The Amendment 2 to IPC-4103A-WAM1 made four fundamental changes to the base standard: All references to the epoxy curative of DICY (dicyandiamide) were removed; Opaque foreign inclusions were more specifically defined and limited; The optional properties of thermal conductivity for both laminates and bonding layers were added; and The dielectric constant (permittivity) ranges were specifically...
This document has been created to help define criteria that will yield better test methods for use by the electronics and related industries. Key objectives to validating a new test method procedure are covered, including the usage of objective evidence to verify that the elements defined within a method fulfill the intended use and that the method yields repeatable and reproducible results when...