This specification covers the requirements for copper/invar/copper (CIC), copper/molybdenum/copper (CMC), three-layer composite. The CIC material consists of copper bonded to each side of a layer of invar (nominal 36% nickel and 64% iron alloy). The copper clad molybdenum consists of copper bonded to each side of molybdenum.

Purpose

This specification addresses the requirements for procurement of copper/invar/copper and copper/molybdenum/copper for use in electronic applications.