Thick copper board

Product name: Thick copper board high mix low volume pcb Characteristic Prominent features: the outer layer of copper thickness of 6 OZ. the inner product of copper thickness 6 OZ. commonly used in large power equipment. Processing difficulties: 1. inside and outside the need to increase the thickness of copper thickness of 2 OZ or more by electroplating method; 2. before pressing the need to fill in the inner layer of resin; 3. the inner and outer layer circuit is difficult