4 Layer PCB Hi Manager, 4 layer PCB consists of 4 copper layers together with 2 prepreg and 1 epoxy core. 4 layer PCB is widely used in the application of IP codec, automobile electronics, computer and peripherals, servers and networking etc. 3 types of 4 layer PCBs: 1) FR-4 material FR-4 Tg >135 and High Tg>170 Material supplier: ITEQ, Shengyi, KB, ILM 2) High frequency material Rogers RO4350B, RO4003C, RO3003, RO3006, RO3010, RO3210 etc. Rogers RT/duroid 5880, RT/duroid 5870, RT/duroid 6002, RT/duroid 6010, PTFE F4B DK2.2, DK2.65 etc.. Taconic TLX-8, TLY-5, RF-35TC, TLF-35 etc. 3) Hybrid PCB RO4350B+FR4+RO4350B RO4350B+FR4 support RO4003C+FR4+RO4003C Benefit: No minimum order quantity. 1-10 pieces are available. ISO certified PCB manufacturing factory. Door to door shipment If you have requirement on 4 layers PCB, please reply back to this email by your gerber files and we will get back to you ASAP. Kevin Liao | Business development Bicheng PCB | sales@bichengpcb.com |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line. Bicheng is located at Baoan, Shenzhen, China 518103.