
A Teflon PCB uses polytetrafluoroethylene (PTFE) as part of its dielectric system. PTFE-based laminates are known for low dielectric loss, stable dielectric properties, and low moisture absorption. Medical equipment like MRI machines and telemetry devices operate at extremely high frequencies, where standard materials struggle with signal loss. Teflon solves this with ultra-low electrical loss and a remarkably stable dielectric constant.
MedPCB provides high-precision Teflon (PTFE) PCB manufacturing for medical applications, supporting you with both prototypes and production orders.
| Layer Count | 1 to 40 Layers |
| Material Options | PTFE-based laminates from qualified suppliers, including Rogers and Taconic, as well as ceramic-filled PTFE systems |
| Finished Board Thickness | 0.2 mm to 10.0 mm |
| Minimum Trace and Space | 3 mil by 3 mil |
| Impedance Control Tolerance | Plus or minus 5 to 10 percent |
| Quality Standard | ISO 13485, IPC Class 2 and Class 3 |
| Via Technology | Blind, Buried, and Stacked Microvias |
| Recommended Surface Finishes | ENIG, ENEPIG, and Immersion Silver |


PTFE-based materials have low surface energy, which makes direct copper adhesion more difficult during PTH fabrication.
Our Solution: We apply the required hole-wall activation and metallization process based on the selected PTFE material to promote reliable copper adhesion and plated-through-hole performance.

Pure PTFE is very soft and can stretch or shrink during manufacturing.
Our Solution: We control panel handling, drilling parameters, registration, and bonding conditions to manage dimensional movement and maintain layer-to-layer alignment.

PTFE and FR-4 can have different thermal expansion characteristics, which may affect registration and mechanical stability in hybrid constructions.
Our Solution: We review the material combination and stackup during DFM and control layer construction and bonding conditions to manage thermal expansion across the hybrid board.

Slight variations in etching can easily throw off the impedance on high frequency boards.
Our Solution: We review the stackup and impedance requirements during engineering review and control imaging, etching, dielectric construction, and final verification to support the specified impedance target.
MedPCB supports PTFE-based laminates from qualified suppliers for low-loss and high-frequency medical PCB applications. Available options include:
Glass-Reinforced PTFE
Ceramic-Filled PTFE
Hybrid Materials
Are you looking for a reliable Teflon PCB manufacturer? Send us your material requirements or Gerber files for review.
Our Medical Teflon PCB FAQ addresses essential questions regarding your high-frequency manufacturing requirements. We cover our capabilities for multilayer Teflon 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.
A Teflon PCB uses polytetrafluoroethylene as its primary substrate to deliver exceptionally stable electrical performance. Medical equipment like MRI machines and telemetry devices operate at extremely high frequencies, where standard materials struggle with signal loss. Teflon solves this with ultra low electrical loss and a remarkably stable dielectric constant.
| Criteria | Use FR4 | Use Rogers (for example RO4350B) | Use Teflon (Pure PTFE) |
|---|---|---|---|
| Operating Frequency | Below 2 GHz | 2 to 10 GHz | Above 6 GHz, especially over 28 GHz |
| Loss Sensitivity | Tolerant | Moderate | Critical |
| Temperature Extremes | Mild | Moderate | Severe (negative 200 to positive 260 Celsius) |
| Chemical Exposure | None to mild | Mild | Harsh (acids and solvents) |
| Budget | Tight | Moderate | Performance driven |
At PCBMay, we fabricate high precision Teflon bare boards tailored to your exact medical requirements. We support pure PTFE, ceramic filled, and hybrid stackups, offering quick turn prototyping and full manufacturing to keep your critical medical devices performing flawlessly.
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