: For critical systems where downtime cannot be tolerated, such as life support or aerospace. 4. Critical Technical Parameters
: For products where the major requirement is the function of the completed assembly.
(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.