Diacool High Performance Heat Sinks with Customized Cte; Rhp Develops and Produces High Performance Cooling Devices Based on a Metal Diamond Core Exhibiting Up to 600W, Mk and Thermal Expansion of 8 10Ppm, K. There is No need for Submounts for Diacool in Laserdiode, Hb LED, Power Electonic and Microelectronic Systems, as well as for Gan Modules, we offer Know How and Expertise in Hot Pressing, Sintering, Injection Moulding and Machining of High Tech Materials as an R&D Service Provider for Powder, Optics Equipment, Photonics ...