RF-35 High-Frequency PCB Manufacturer – Low-Cost Ceramic PTFE Laminate for RF & Microwave Circuits

August 14, 2025

Introduction to RF-35 High-Frequency PCBs

RF-35 is a cost-effective, high-performance organic-ceramic laminate from Taconic’s ORCER series, reinforced with woven glass. Designed for high-volume commercial RF and microwave applications, it offers excellent peel strength—even for ½ oz and 1 oz copper—making it highly reliable during rework. With ultra-low moisture absorption and a low dissipation factor, RF-35 ensures minimal phase shift and stable performance across frequencies.

Key Parameters of RF-35 Laminate

Dielectric Constant: 3.50 @ 1.9 GHz (IPC-TM-650 2.5.5)
Dissipation Factor: 0.0018 @ 1.9 GHz
Moisture Absorption: 0.02% (@ 0.060 inches, IPC-TM-650 2.6.2.1)
Peel Strength:
½ oz Copper: >8.0 lbs/in
1 oz Copper: >10.0 lbs/in
Dielectric Breakdown: 41 kV (IPC-TM-650 2.5.6)
CTE (x, y, z): 19, 24, 64 ppm/°C (ASTM D3386)
Flammability Rating: UL 94 V-0

PCB Manufacturing Capabilities

Layer Types: Single-layer, double-layer, multilayer, hybrid PCBs
Copper Weight: 1oz (35µm), 2oz (70µm)
Laminate Thickness: 5 mil (0.127 mm), 10 mil (0.254 mm), 20 mil (0.508 mm), 30 mil (0.762 mm), 60 mil (1.524 mm)
Max PCB Size: 400 mm x 500 mm
Solder Mask Colors: Green, black, blue, yellow, red
Surface Finishes: Bare copper, HASL, ENIG, immersion silver, immersion tin, ENEPIG, pure gold, OSP

Applications

RF-35 is ideally suited for:
Power amplifiers
Filters and couplers
Passive RF components
Commercial microwave systems