What is CuW?
Copper tungsten, also known as CuW, W-Cu and tungsten copper, is a popular composite metal used in many industries due to its unique thermal conductivity properties among other reasons. The type of CuW INTA works with consists mainly of tungsten (75%-90% in most cases) with the balance copper. The material has a CTE which matches several other key materials which means it can be used to make packages for high temperature and temperature cycling applications.