: Indicates if the foil is untreated ( N ), stain-proofed ( P ), or has a single-sided bond treatment ( S ).
: Primarily Copper (CU) , but also includes Nickel (NI) and other specialized metals. ipc-4562 pdf
One of the most practical aspects of the standard is its standardized coding system. A typical call-out (e.g., IPC-4562/3-CU-E-S-LP ) identifies everything a supplier needs to know about the material: : Indicates if the foil is untreated (
(officially titled "Metal Foil for Printed Board Applications" ) is the definitive industry standard that specifies the requirements for metal foils used in the manufacturing of printed circuit boards (PCBs). Published by the IPC (Association Connecting Electronics Industries), it covers both unsupported foils and foils supported by carrier films. A typical call-out (e
: Links to a specific page in the standard containing detailed engineering data (e.g., /3 ). Foil Metal : Usually CU for copper.
: For products where the major requirement is the function of the completed assembly.