PCB for Rogers TMM 4 thermoset microwave material15mil, 20mil, 25mil, 30mil, 50mil, 60mil,

with tolerances of 0.6mm for PCB thickness for satellite

(PCB's are custom-made products, the picture and parameters shown are just for reference)

Material Composition: Rogers TMM4 is a ceramic, hydrocarbon, thermoset polymer composite tailored

for high plated-through-hole reliability in stripline and microstrip applications, with a dielectric constant

of 4.70.

Benefits: TMM4 amalgamates the advantages of ceramic and traditional PTFE microwave circuit materials,

without necessitating specialized production techniques. Unlike some materials, it does not need a sodium

napthanate treatment before electroless plating.

Thermal Properties: TMM4 boasts an impressively low thermal coefficient of dielectric constant, typically

below 30 PPM/°C. Its isotropic coefficient of thermal expansion closely mirrors that of copper, enabling

the creation of dependable plated through-holes and minimal etch shrinkage.

Thermal Conductivity: The material offers a thermal conductivity roughly double that of conventional PTFE

/ceramic materials, aiding in effective heat dissipation.

Thermoset Resins: TMM4, being based on thermoset resins, retains its structural integrity when exposed to

heat. Consequently, wire bonding of component leads to circuit traces can be conducted without worrying

about pad lifting or substrate deformation.

Our PCB Capability (TMM4)

Typical Applications

Chip testers

Dielectric polarizers and lenses

Filters and coupler

Global Positioning Systems Antennas

Patch Antennas

Power amplifiers and combiners

RF and microwave circuitry

Satellite communication systems

Data Sheet of TMM4

Established in 2003, Bicheng Technologies Limited is a reputable supplier and exporter of high frequency PCBs based in Hong Kong, China. With 20 years of experience, we specialize in serving global markets in various fields such as cellular base station antennas, satellites, high frequency passive components, microstrip and band line circuits, millimeter wave equipment, radar systems, digital radio frequency antennas, and more.

Our high frequency PCBs primarily utilize materials from renowned brands including Rogers Corporation, Taconic, and Wangling, Shengyi and Zhongying etc. These materials offer a wide range of dielectric constants, ranging from 2.2 to 10.2, ensuring optimal performance for diverse applications.

In addition to high frequency PCBs, we also have dedicated divisions for FR-4 circuit boards, flexible circuits, and metal core PCBs. Our capabilities cover prototype development, small production runs, and large-scale mass production. We actively pursue high-value PCB projects such as HDI (high-density interconnects), quick turnarounds, impedance control, heavy copper, and backplane boards. This comprehensive approach allows us to offer a complete range of PCB products, catering to both low-end and high-end requirements.

Our PCBs find applications in various industries, including computer networking, safety and surveillance systems, power supply units, telecommunication devices, automotive electronics, medical apparatus and instruments, national defense, industrial equipment, and more. We are dedicated to delivering high-quality PCB solutions that meet the diverse needs of our customers.