Ipc-4556 - Pdf 'link'

The standard establishes the minimum and maximum thickness levels for each metal layer in the ENEPIG process. It also outlines the testing methodologies required to ensure the finish meets performance benchmarks for soldering, wire bonding, and shelf-life storage. Why ENEPIG is Called the "Universal Finish"

Understanding IPC-4556: The Industry Standard for ENEPIG Surface Finishes ipc-4556 pdf

Standards for checking for surface defects like pitting, corrosion, or contamination 1.2.3. The standard establishes the minimum and maximum thickness

The search for an is a search for reliability. ENIG is a sophisticated electrochemical process; without a rigorous standard, you leave your PCB's performance to chance. IPC-4556 provides the industry consensus on thickness, chemistry, testing, and classification that eliminates guesswork. without a rigorous standard

Purchase the latest IPC-4556A version at Nimonik Standards or the IPC Store.