Following IPC-4556 isn't just about compliance; it's about performance. Industry experts, such as those at Hitachi High-Tech , highlight several core advantages:
Automotive, aerospace, and medical devices needing long shelf life (12+ months). ipc4556 pdf
This article is for informational purposes only and does not replace the official IPC-4556 document. Always refer to the latest standard for legally binding requirements. Following IPC-4556 isn't just about compliance; it's about
The standard specifies the requirements for Electroless Nickel/Electroless Palladium/Immersion Gold (ENEPIG) plating as a surface finish for printed circuit boards (PCBs) . Known as the "universal finish," ENEPIG is unique for its ability to support multiple assembly processes on a single board, including soldering, gold wire bonding, aluminum wire bonding, and contact applications. Key Thickness Requirements Following IPC-4556 isn't just about compliance