The IPC specifications for printed board surface finishes set the standard for quality and reliability in printed board manufacture today. Adhering to these specifications increases yield and performance, but involves tight process control and accurate measurement of surface finish thickness.
Central to meeting the IPC specifications is the accuracy of XRF measurements to determine surface thickness. In the ‘2020 Manufacturers’ Guide to XRF Analysis to Meet IPC Specifications for Printed Board Surface Finishes’ we discuss four main types of printed board finish, and how best to meet IPC specifications for each one.
The four types of surface finish covered are: