Alcanta PCB company offers High quality PCB from 1 layer to 90 layers. PCB and PCBA service. Fast delivery service. we can produce quick turn time PCB in 1 day or 2 days. and we use official DHL transportation the PCB goods to your company in a short time. it only needs about 2 to 3 days shipping time. you will receive your PCB in 4 or 5 days from China. We offer FR4 PCB, Aluminum PCB, Metal PCB, Flex PCB, Flex-Rigid PCB, High Frequency PCB, Rogers PCB, High Tg PCB and many High multilayer PCB. about the PCB Production Technologies. we have made many PCB with Buried and Blind Vias holes, Impedance Control with +/-5%, Hybrids & Mixed Dielectrics, Non?Conductive Via Fill, Conductive Via Fill , Cavity Boards, Backdrilling, Controlled Depth Drill and Rout and other many especial design. Any especial PCB design questions. please check with our engineer. they will help you anytime. For more PCB information, please pay attention: https://www.pcbmake.com/what-is-the-high-frequency-pcb/