laser cup hole pcb 1.aluminum base pcb,thickness3.0mm 2. ... .single-sided rigid pcb 4.thermal conductivity 2.0w/mk laser cup hole pcb1.aluminum base pcb,thickness3.0mm2.copper:1oz3 ... of Solder Mask0.15mm16The Minimum Pad10um17Solder Mask Colorgreen, white, black, red, yellow18The Minimum Letter Width0.15mm19The Minimum Letter Height0.8mm20Letter Colorwhite ...