Rayming provide Teflon PCB Manufacturing services, Pls send PCB files with requirement to pcb@frankenthalerfoundation.org, We will quote you very soon !
PTFE Teflon PCB to meet the demand for faster communications. Please refer Teflon PCB Applications.Teflon materials are valued for their suitability in high-frequency electronic applications. At Microwave RF PCB, FR-4 Material (approx. 4.5) dielectric constant is often too high, its significant signal loss during transmission across the printed circuit board. Luckly, Teflon materials boast dielectric constant values as low as 3.5 or less, it is ideal material for overcoming the high-speed limitations of FR-4. The most common of these Teflon PCB materials were developed by Rogers. In addition to a reduction in dielectric constant, these materials also offer very impressive thermal characteristics for High Temperature PCB applications, reaching Tg values as high as 280°C. A datasheet comparison is shown below for two different PTFE teflon pcb materials, RO4003C and RO4350B.
Teflon Material
Dielectric Constant (Dk)
Trace Width (W) – mil
Dielectric Height (H) – mil
Copper Thickness (T) – oz
Dielectric Thickness (B) – mil
Copper Thickness (T) – mil
Operating Frequency
Application Type
Budget Priority
Board Dimensions (mm)
×
Quantity
Layer Count
Thickness (mm)
Surface Finish
Copper Weight
Additional Options
Via Filling Impedance Control Gold Fingers Edge Plating
Stackup Type
Primary Teflon Material
Select stackup type to view configuration
Cost Optimization: Use Teflon only for RF layers and FR4 for power/ground planes to reduce material costs by 30-50%.
Signal Integrity: Teflon layers provide low loss for high-frequency signals while FR4 offers mechanical stability.
Manufacturing: Hybrid stackups require careful bonding process – use appropriate prepreg materials.
Store Teflon laminates in a controlled environment (20-25°C, <50% RH). PTFE materials can absorb moisture affecting Dk values.
Use carbide drills with 130° point angle. Reduce feed rate by 30-50% compared to FR4. Consider controlled-depth drilling for blind vias.
Plasma treatment or sodium etch is required for proper adhesion. ENIG finish is recommended for consistent impedance and solderability.
Maintain consistent trace width. Use smooth transitions for impedance changes. Avoid sharp corners – use 45° or curved traces for RF paths.
Use back-drilled or blind vias to minimize stub effects at high frequencies. Keep via-to-trace transitions short.
Use solid ground planes without splits under RF traces. Place ground vias around RF traces for isolation (via stitching).
PTFE has lower thermal conductivity than FR4. Use thermal vias and consider copper coin inserts for heat dissipation.
Account for CTE differences in hybrid stackups. Use proper registration marks for multi-layer alignment.
✗ Using standard FR4 design rules without accounting for Teflon properties
✗ Ignoring via stubs in high-frequency designs (>10 GHz)
✗ Insufficient ground via stitching near RF traces
✗ Not specifying impedance tolerance in fabrication notes
✗ Using incompatible prepreg for hybrid stackups
RAYPCB specialise in PTFE (Teflon) PCB Manufacturing, PTFE material is widely used in high frequency PCB , We accept teflon PCB Prototype order with quick turn delivery, All Prototype PCB at industry standard quality of course.
RayMing is experienced in production of various high-frequency circuit boards. For most of RF PCB materials (such as: Ceramic PCB, Teflon PCB, Rogers PCB, Taconic PCB, Arlon Pcb), we have sufficient inventory to ensure fast delivery.
For the past years, different PCB substrates have become popular in the market. This is due to the benefits and features offered by these materials. Polytetrafluoroethylene, also known as Teflon, is one such material.
Teflon is a non-sticky material that features an inert molecular structure. Polytetrafluoroethylene (PTFE) plays a vital role in the production of complex electronics. This material offers great mechanical and electrical properties.
Although this Teflon PCB is machined in a similar way as other laminates, it is important to understand some things about this material. In this article, we will be discussing important things you need to know about Teflon PCB
Teflon is a brand name for Polytetrafluoroethylene. PTFE is known for its nonstick and non-reactive surface. Teflon is a well-known material used in the manufacturing of several products. Teflon PCB is an electric circuit that is equipped with better capacities and enhanced connections.
Teflon PCB is a synthetic resin material utilized in non-sticky applications. This material is manufactured by polymerizing tetrafluoroethylene. Teflon PCB material can resist high temperatures. Due to this, it is commonly used for high-frequency PCB.
It features properties like low dissipation factor, cold resistance, low coefficient of thermal expansion, chemical resistance, and high heat. Teflon PCB manufacturers design this PCB to offer outstanding advantages to users.
Polytetrafluoroethylene is a material known for its resistance to moisture, grease, chemicals, and oil. PTFE PCB features high lubrication, no adhesion, weather resistance, and high insulation. This material is used in the production of PCB ideal for electronic appliances.
A Teflon PCB board has great mechanical, thermal, and electrical properties. This board is used in applications demanding high frequency and high temperature. Below are some of the properties of this printed circuit board;
Great chemical resistance: This material has the ability to withstand chemicals. When exposed to chemicals, oils, and grease, its original properties don’t alter. PTFE boards can be used in a chemical reagent environment.
Low temperature resistance: Teflon PCB material features great mechanical toughness. Even in cases where the temperature reduces to -196 degrees Celsius, it can still maintain 5 percent elongation.
Weather resistance: This is one of the best properties of this material. Teflon PCB can withstand any weather condition. This makes them durable and reliable.
Low dissipation factor: Teflon PCB board offers a low dissipation factor which makes it a good insulator system. This material is ideal for high-performance and high-quality electronic systems. It is ideal in applications like radar systems and radio frequency.
Non-stick: This material is non-adhesive and non-stick. PTFE is a combination of carbon atoms with fluorine atoms attached to every carbon atom. These strong bonds make this material to be unreactive.
Low water absorption: PTFE PCBs can be used in humid environments since they feature low water absorption. This means that this board can withstand moisture.
Exceptional electrical properties: PCB Teflon features low dielectric loss and dielectric constant over a high frequency. This material offers volume resistivity and high breakdown voltage. Its dielectric constant is measured at 2.0.
For the production of Teflon circuit boards, extreme attention and carefulness are required. Teflon PCB manufacturers understand that this material is different from FR4 PCB material. For the production of Teflon boards, the following should be considered;
Surface preparation: A substrate’s surface is always prepared for layer formation, marking, and metallization. The manufacturer needs to pay attention to the type of equipment utilized for the preparation of the surface.
For example, things like bristles, scrubbers, and composite brushes should be avoided during the preparation of the surface. These things can disturb the soft laminate. Sodium etchants or plasma gas recycling is used for the preparation of the PTFE surface.
Copper plating: Special care is needed when copper plating ceramic with high dielectric materials. Pure PTFE materials have a high Z-axis coefficient of thermal expansion. Therefore, it is important to utilize plated copper on through-hole walls.
This plated copper must feature high tensile strength. This helps to minimize the chances of pad lifts and barrel cracks.
Solder mask: You must apply the solder mask within 12 hours of etching the material. A Teflon PCB manufacturer must ensure it processes the etched surface via a standard PTFE cycle. You can also clean residual moisture by baking the PTFE laminates before applying a solder mask.
Drilling: This is a new procedure ideal for drilling PTFE substrates covered with copper. Drilling must be utilized with a high
