IPC-HDBK-840 supplements the solder mask requirements established in IPC specifications such as IPC-SM-840 and IPC-6012 by providing detailed information on solder mask types, application processes, pre- and post- assembly processes, characteristics and properties that are useful in the selection and use of the most appropriate mask type for a given application. Applicable to solder mask...
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...
Ce document a été créé pour guider les concepteurs dans leur processus de définition des paramètres nécessaires pour créer les différents motifs dans leurs outils de CAD.