1). 80*50mm/1up, Bergquist Thermal Clad aluminium backed2). HT-04503,MP-06503,HT-070063). Ceramic dielectric material, conductivity: 1.3W/m-k, 2.2W/m-k, 4). 1.6mm thick, single sided, 35μm (1 oz)5). Black solder mask/no ident6). CNC rout outline7). Immersion gold