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Taconic RF-35 Manufacturing for Medical Devices

MedPCB manufactures high-frequency Taconic RF-35 PCBs for medical electronics that require low signal loss, stable dielectric performance, and controlled impedance. We support RF-35 fabrication for prototypes and production with ISO 13485 quality management and advanced high-frequency PCB capabilities.

• Taconic RF-35 High-Frequency PCB Manufacturing
• Dk 3.5 & Low Df for Low-Loss Signal Transmission
• High Thermal Stability & Low Moisture Absorption
• ISO 13485 & IPC Class 2/3 Manufacturing

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Certifications

introduction

What is Taconic RF-35 in Medical PCB Manufacturing?

Taconic RF-35 is a high-frequency PCB material made with ceramic-filled PTFE and woven glass reinforcement. It provides a stable dielectric constant of 3.5, low signal loss, and very low moisture absorption. These properties help maintain predictable signal transmission and controlled impedance in high-frequency circuits. RF-35 is suitable for medical electronics such as wireless monitoring systems, diagnostic equipment, RF surgical systems, and other devices that require stable high-frequency performance.

For your medical projects, MedPCB offers professional Taconic RF-35 PCB fabrication complying with ISO 13485 and IPC Class 2/3 medical‑grade standards.

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Quality

Advantages of Taconic RF-35 in Medical Applications

Low Dielectric Loss for High-Frequency Signal Integrity

RF-35 has low dielectric loss, minimizing signal attenuation at high frequencies. This helps preserve signal integrity and supports reliable performance in demanding high-speed applications.

Stable Dielectric Constant for Controlled Impedance

High Thermal and Dimensional Stability

RF-35 offers excellent thermal and dimensional stability, helping maintain PCB integrity under temperature fluctuations and demanding operating conditions. This supports reliable performance and long-term board durability.

Low Moisture Absorption

RF-35 has very low moisture absorption, helping maintain stable dielectric properties in humid environments. This supports consistent signal performance and long-term PCB reliability.

Why Choose Us

MedPCB as Taconic RF-35 Medical PCB Manufacturer

ISO 13485 Certified Medical PCB Manufacturing

Our production follows ISO 13485 and IPC standards for medical electronics. We apply strict quality control throughout fabrication to deliver reliable Taconic RF-35 PCBs for demanding medical applications.
Flexible Taconic RF35 Material Sourcing

We source Taconic RF35 and compatible high-frequency materials from prequalified suppliers with multiple supply alternatives. Our well-established supply chain secures consistent material availability across prototyping and mass production runs.
Free DFM Review for Taconic RF-35 PCBs

Our engineering team provides a free DFM review before production. We check stack-up, trace spacing, vias, impedance requirements, and other design details to identify potential manufacturing issues early.
Microwave & RF Taconic RF-35 Manufacturing Expertise

We manufacture Taconic RF-35 PCBs for microwave and radio-frequency medical applications. Our manufacturing process supports controlled impedance, high-frequency routing, and precise fabrication for wireless and diagnostic medical equipment.
Testing & Quality Assurance

Every Taconic RF-35 PCB undergoes comprehensive quality inspections and testing to verify manufacturing accuracy and electrical performance. Depending on project requirements, we can support electrical testing, impedance verification, dimensional inspection, and visual inspection to identify defects before shipment.

Specs

Technical Specifications

Capability	Specification
Layer Count	1–40 layers
Taconic Materials	RF-35, RF-35A2, RF-35TC, RF-30, RF-60A, TLY-5/TLY-5A, TLX, TLE, TLC, and TSM-DS3
PCB Types	HDI, high-layer-count, blind/buried via, heavy copper, and backdrill
Board Thickness	0.2–5.0 mm
Copper Thickness	0.5–10 oz
PTH Wall	25 μm (1 mil)
Maximum Board Size	1100 × 500 mm
Min. Laser Drill	4 mil
Min. Trace / Spacing	2.7 / 2.7 mil
Solder Mask Colors	Green, black, blue, red, white, yellow, purple
Surface Finishes	ENIG, ENEPIG, HASL, Lead-Free HASL, OSP, Immersion Silver, Immersion Tin, and Gold Plating
Min. Annular Ring	3 mil
Aspect Ratio	Up to 10:1
Impedance Control	±5 Ω (<50 Ω); ±10% (≥50 Ω)
Additional Technologies	Blind/buried vias, via-in-pad, gold fingers, press-fit, backdrill, electrical testing

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Capabilities

MedPCB Medical Taconic RF-35 PCB Process

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Step 1: Engineering Review & Material Preparation

Our process begins with a detailed DFM review of your PCB design, stack-up, impedance requirements, and manufacturing specifications. Taconic RF-35 materials are carefully prepared and verified to ensure the correct material type, thickness, and construction are used for the intended medical and high-frequency application.

Step 2: Inner-Layer Fabrication & Lamination

Step 3: Precision Drilling, Hole Treatment & Copper Plating

Step 4: Outer-Layer Fabrication, Solder Mask & Surface Finish

The outer copper layers are imaged and etched to achieve accurate trace geometry and controlled impedance. Solder mask is then applied to protect exposed circuitry, followed by the specified surface finish to provide reliable solderability and long-term protection against oxidation.

Step 5: Routing, Inspection & Electrical Testing

challenges

Challenges in PCB Manufacturing Using Taconic RF-35 PCB

Material Brittleness & Mechanical Processing

Challenge: PTFE-based RF laminates require carefully controlled drilling and routing to maintain clean holes, edges, and dimensional accuracy.

Our Solution: We use controlled drilling and routing parameters, suitable tooling, and optimized feed rates to reduce mechanical stress and produce clean, accurate features.
Copper Adhesion & Surface Treatment

Challenge: The PTFE surface of Taconic RF-35 can make copper adhesion more difficult. Poor adhesion may lead to weak copper bonding or delamination.

Our Solution: We use controlled hole-wall treatment and metallization processes suitable for PTFE-based RF-35 materials to promote reliable copper adhesion and plated-hole performance.
Temperature Sensitivity & Dimensional Stability

Challenge: Differences in thermal expansion between RF-35 and other materials in a multilayer stack can create stress during lamination and thermal cycling. Poor process control may result in warpage, layer shift, or delamination.

Our Solution: We apply controlled heating, lamination, and cooling profiles to maintain dimensional stability, layer registration, and reliable interlayer bonding throughout production.
Supply Chain Constraints & High Material Demand

Challenge: Taconic RF-35 materials may have longer lead times due to limited availability and high demand for high-frequency laminates.

Our Solution: We maintain qualified sourcing channels for Taconic materials and review approved alternatives when material availability or lead time affects the project schedule.

Specs

Taconic RF-35 Specifications for Medical PCBs

Taconic RF-35 provides stable electrical, thermal, and mechanical properties for high-frequency medical PCBs. Its low dissipation factor, low moisture absorption, and stable dielectric constant support reliable signal performance in demanding medical applications.

Property	Value
Dielectric Constant @ 1.9 GHz	3.50
Dissipation Factor @ 1.9 GHz	0.0018
Moisture Absorption	0.02%
Peel Strength, 0.5 oz Copper	>8.0 lbs/in
Peel Strength, 1 oz Copper	>10.0 lbs/in
Dielectric Breakdown	41 kV
X-Y CTE	19–24 ppm/°C
Z CTE	64 ppm/°C
Flammability	V-0

MedPCB supports Taconic RF-35 medical PCB projects with free DFM review. Just send us your Gerber file today and get your free DFM check.

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industries

Taconic RF-35 Applications in the Medical Industry

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Case Study

Isola 370HR PCB Cases in Medical Equipments

Ultrasound System PCBs

For this customer’s ultrasound front‑end circuits, the project required multi‑layer boards with fine trace‑and‑space. We produced 8‑layer TC350 hybrid PCBs with 6/6 mil trace‑and‑space and immersion silver finish for low RF loss. The finished boards deliver stable signal integrity for their diagnostic imaging system.
RF Cautery PCBs

For this customer’s electrosurgical device, PCBs needed to withstand thermal fluctuation under continuous high‑power RF output. We built TC350 PCBs with 4oz heavy copper and robust PTH processing. The boards ensure stable electrical performance for reliable surgical energy transmission.
Diathermy Equipment PCBs

This customer’s diathermy system faced challenges from long‑cycle high‑frequency operation, requiring resistance to dielectric drift and frequency shift. We completed precise stack‑up calibration and full electrical testing for TC350 multilayer boards. The finished PCBs maintain stable dielectric properties for their thermal‑therapy equipment.
Microwave Ablation (MWA) System PCBs

Precise high‑frequency energy control was critical for this customer’s microwave ablation hardware. At their request, we offered hybrid stack‑up suggestions, completed prototype builds and passed their qualification testing. The PCBs provide repeatable microwave performance for their clinical ablation system.

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Faqs

Frequently Asked Questions

Our Medical Taconic RF-35 PCB FAQ addresses essential questions regarding your eco-friendly manufacturing requirements. We cover our capabilities for multilayer halogen-free circuits, material selection, thermal stability, strict ISO 13485 quality standards, and compliance with RoHS and REACH regulations. For every medical PCB project, we guarantee high-precision fabrication tailored for critical healthcare applications.

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1. How Should Thin Taconic RF-35 Cores Be Handled?

Use precise layer alignment tools, provide enough panel spacing, and limit handling to prevent cracks and core damage

2. Does Taconic RF-35 Need a Specialized Manufacturing Process

Yes. RF-35 requires controlled PTFE processing for drilling, via formation, hole-wall treatment, and lamination to achieve reliable results.

3. How Thin Can a Taconic RF-35 PCB Be Made?

RF-35 PCBs can be designed with a finished thickness below 0.030 inches (0.76 mm). Thin dielectric layers require precise lamination and layer registration.

4. Can Taconic RF-35 Be Used in Multilayer PCBs?

Yes. Taconic RF-35 can be used in multilayer PCB constructions for high-frequency applications. Proper stack-up design and controlled lamination are essential for reliable layer alignment and electrical performance.

5. Can Taconic RF-35 Be Combined With FR-4 in a Hybrid PCB?

Yes. RF-35 can be combined with FR-4 in hybrid multilayer PCBs to balance high-frequency performance and manufacturing cost. The materials must be carefully selected and integrated to manage differences in dielectric properties and thermal behavior.

6. How Is Taconic RF-35 Different From Standard FR-4?

Taconic RF-35 is designed for high-frequency applications, offering lower dielectric loss and more stable electrical performance than standard FR-4. It is commonly used where controlled impedance and signal integrity are critical.

7. How Does MedPCB Control Impedance on RF-35 PCBs?

MedPCB controls impedance through precise stack-up design, dielectric thickness, copper thickness, trace geometry, and controlled fabrication processes. Impedance requirements are reviewed during engineering and verified through testing when specified.

8. Can Taconic RF-35 Be Used With Lead-Free Soldering?

Yes. RF-35 can support lead-free soldering when controlled thermal profiles are used. Proper multilayer design also helps reduce thermal stress during assembly.