6-Layer Hybrid PCB RO4350B + High Tg FR-4 (S1000-2M) Blind Vias

This 6-layer hybrid PCB combines Rogers RO4350B (high-frequency laminate) and High Tg FR-4 (S1000-2M) to optimize performance for high-frequency, mission-critical applications.

PCB Specification

Hybrid PCB Stack-up

What is a Hybrid PCB?

A hybrid PCB (also known as a mixed-material PCB) is a specialized circuit board that integrates two or more distinct base materials in its stack-up, each selected to optimize specific performance attributes. Unlike single-material PCBs, which must compromise on certain properties, hybrid PCBs leverage the strengths of each material to address diverse design requirements.

Rogers RO4350B Material Overview

Rogers RO4350B is a proprietary laminate composed of woven glass reinforcement blended with hydrocarbon/ceramic compounds, striking a balance between PTFE/woven glass-like electrical performance and the manufacturing simplicity of epoxy/glass materials.

Tailored for high-frequency applications, RO4350B laminates offer tightly controlled dielectric constant (Dk) and maintain ultra-low signal loss—all while being processable using standard epoxy/glass manufacturing workflows. A cost-effective alternative to traditional microwave laminates, RO4350B eliminates the need for specialized through-hole treatments or handling procedures required by PTFE-based materials. It also holds a UL 94 V-0 flammability rating, making it suitable for active electronic devices and high-power RF designs.

RO4350B Properties

Core Features (S1000-2M High Tg FR-4)

-Reduced Z-axis CTE, enhancing through-hole reliability in demanding environments

-Superior mechanical processability paired with exceptional thermal resistance

-Lead-free soldering compatibility, aligning with modern manufacturing standards

-Glass Transition Temperature (Tg): 180°C (per DSC testing); UV-blocking properties for AOI compatibility

-Outstanding high-heat endurance for stable performance in elevated temperature conditions

-Excellent Anti-CAF (Conductive Anodic Filtration) performance, mitigating long-term reliability risks

-Minimal moisture absorption, ensuring durability in humid operating environments

Typical Applications

-Commercial Airline Broadband Antennas

-Microstrip and Stripline Circuits

-Millimeter Wave Systems

-Radar & Guidance Systems

-Point-to-Point Digital Radio Antennas

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen China, severing cellular base station antenna, satellite, high frequency passive components, microstrip line and band line circuit, millimeter wave equipment, radar systems, digital radio frequency antenna and other fields worldwide for 18 years. Our high frequency PCBs are mainly built on 3 high frequency material brands: Rogers Corporation, Taconic and Wangling. Dielectric constant ranges from 2.2 to 10.2 etc.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

Main Business & PCB Applications

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. We also have divisions of FR-4 circuit board, flexible circuits and metal core PCBs featured as prototypes, small runs to mass production. We actively research and build such high value added PCB projects as HDI, quick turn, impedance control, heavy copper and backplane board etc. This has made our PCB products generate an effective prolongation and complementation, as well as formation of integrated products line ranging from low-end to high-end.The circuit boards are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main Material Partners