Tag Archives: Underwriters Laboratories

FR4-CCL Reclassification Explained – An update from UL (FREE recorded webinar)

UL has been working with IPC and industry for more than 15 years to address the impact of changes to copper clad laminate (CCL) on aging tests required by U.L. Standards.  The UL/IPC task group identified in 1996 that the generic family of FR-4 had changed over time and the materials included in this family […]