IPC 4411-K

IPC-4411 covers the nomenclature, definitions and requirements for reinforcement made from nonwoven para-aramid fibers. Para-aramid reinforcement is primarily used in PWBs for HDI applications. IPC-4411 also includes specification sheets, which can be used when selecting and purchasing nonwoven para-aramid reinforcement. Amendment 1 includes three new nonwoven materials, as well as revisions to material properties included in the specification sheets. 14 pages. April 1999. Includes Amendment 1.