4 Layer Hybrid PCB Bulit On Rogers 20mil RO4003C and FR-4 Hi, Here’s a type of hybrid PCB built on 20mil RO4003C with FR-4. Let's take a look at its microsection chart. Here on the left is the PTH hole, the bottom is layer 1 to layer 2 which is high frequency material, the upper part is glass fiber material. The finished thickness of the plate is 1.6mm. The color of solder mask and silkscreen are also commonly used in green and white. Surface finish on pads is immersion gold. Our PCB Capability PCB Type: Hybrid PCB, Mixed PCB Mixed type: RO4350B + FR4; 　 RO4003C + FR4; 　 F4B + FR4; 　 RT/duroid5880 + FR4; 　 RT/duroid5880 + RO4350B Solder mask: Green, Red, Blue, Black, Yellow Layer count: 4 Layer, 6 Layer, Multilayer Copper weight: 0.5oz (17 µm), 1oz (35µm), 2oz (70µm) PCB thickness: 1.0-5.0mm PCB size: ≤400mm X 500mm Surface finish: Bare copper, HASL, ENIG, Immersion tin, OSP 　 　 At present, the mature mixed pressing materials are as follows: RO4350B + FR4; RO4003C + FR4; F4B + FR4; RT/duroid5880 + FR4 RT/duroid5880 + RO4350B We can provide you with prototype and mass production. If you are interested in high frequency PCB, we are willing to share our price with you. We are looking forward to hearing any feedback from you and wish you all the best. Thanks for your time to check this e-mail and hope to hearing from you soon. -- Warm Regards Ivy Deng | Business development Bicheng PCB | sales10@bichengpcb.com | website: www.bichengpcb.com Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN P Please consider your environmental responsibility before printing this e-mail If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line.