IPC 2226A:2017 PDF Download

IPC-2226A:2017 is a sectional design standard that focuses on high density interconnect (HDI) printed boards. The standard is designed to be used in conjunction with IPC-2221B and provides requirements and considerations for the design of HDI printed boards and microvia technology. This standard has been revised in its A version, featuring several important updates. One significant update is the introduction of a new color key for HDI constructions, providing clarity and ease of understanding. Additionally, the A version includes new coverage of routing density factors as well as a complete rebuild of feature size recommendations, including aspect ratio, capture, and target land sizes. The A version also includes revised and supplemented graphics in Sections 3, 5, and 9, providing further clarity on various microvia formation processes and HDI constructions.