Taconic CER-10 RF PCB Materials Introduction Hello everyone. Welcome back to our RF laminate Channel. Today we’ll be discussing a type of high Dk RF laminate from Taconic company: CER-10 laminate. Taconic CER-10 laminate incorporates a woven glass reinforcement, showcasing Taconic's expertise in ceramic fill technology and coated PTFE fiberglass. Taconic CER-10 PCB material stands out with its outstanding interlaminar bond strength and solder resistance. Its proprietary composition ensures minimal moisture absorption and consistent electrical properties. The woven glass reinforcement in CER-10 contributes to excellent dimensional stability and enhanced flexural strength. With a low Z-axis expansion (CTE 46 ppm/°C), this DK-10 laminate provides reliable plated-through-hole performance even in extreme thermal environments. Now let’s delve into the detailed properties of each parameter. Data sheet CER-10 laminate offers an impressive array of properties, including excellent dielectric characteristics, low moisture absorption, remarkable mechanical strength, dimensional stability, and reliable thermal performance. The dielectric constant of CER-10, measured using IPC-TM-650 2.5.5.6 standard, is 10, highlighting its good insulating properties. Additionally, the dissipation factor at 10 GHz is impressively low at 0.0035. CER-10 boasts minimal moisture absorption, with a rate of only 0.02% according to IPC-TM-650 2.6.2.1. This feature ensures consistent electrical properties, making it a reliable choice for various applications. The dielectric breakdown strength of CER-10 is 44 kV, as per IPC-TM-650 2.5.6 standard. Moreover, it exhibits a volume resistivity of 2.1 x 10^8 Mohm/cm and a surface resistivity of 1.1 x 10^9 Mohm, indicating its excellent electrical insulation characteristics. The arc resistance is greater than 180 seconds. Taconic CER-10 laminate demonstrates remarkable flexural strength in both the machine direction (MD) and cross direction (CD). As per ASTM D 790, the flexural strength in MD is 16,500 psi (114 N/mm2), while in CD, it is 15,500 psi (107 N/mm2). Additionally, its tensile strength is 7,700 psi (53 N/mm2) in MD and 6,700 psi (46 N/mm2) in CD. These properties ensure the laminate's durability and reliability under mechanical stress The peel strength of CER-10, evaluated using IPC-TM-650 2.4.8 standard with 1 oz. ED (electrodeposited) copper, is 9 lbs/linear inch (1.61 N/mm). It also exhibits excellent dimensional stability, with minimal changes observed in both the machine direction (MD) and cross direction (CD). The density or specific gravity of the material is 3.05 g/cm3. CER-10 showcases a thermal conductivity of 0.63 W/m/K according to ASTM F 433. Its coefficient of thermal expansion (CTE) in the x-y plane ranges from 13 to 15 ppm/℃, while in the z-axis, it is 46 ppm/℃. These values contribute to its reliability in extreme thermal environments. CER-10 exhibits minimal outgassing characteristics, with a total mass loss (TML) of 0.02%, coefficient of volatile condensable material (CVCM) of 0.01%, and a water vapor regain (WVR) of 0.01%, as per ASTM E 595 standard. CER-10 holds a UL 94 flammability rating of V-0, ensuring its resistance to ignition and reduced fire hazards. CER-10 Typical Values Property Test Method Unit CER-10 Value Dielectric Constant (Nominal) IPC-TM-650 2.5.5.6 10 Dissipation Factor 10 GHz IPC-TM-650 2.5.5.5.1 0.0035 Moisture Absorption IPC-TM-650 2.6.2.1 % 0.02 Dielectric Breakdown IPC-TM-650 2.5.6 kV 44 Volume Resistivity IPC-TM-650 2.5.17.1 Mohm/cm 2.1 x 108 Surface Resistivity IPC-TM-650 2.5.17.1 Mohm 1.1 x 109 Arc Resistance IPC-TM-650 2.5.1 Seconds >180 Flexural Strength (MD) ASTM D 790 psi(N/mm2) 16500 (114) Flexural Strength (CD) ASTM D 790 psi(N/mm2) 15500 (107) Tensile Strength (MD) ASTM D 638 psi(N/mm2) 7700 (53) Tensile Strength (CD) ASTM D 3039 psi(N/mm2) 6700 (46) Peel Strength (1 oz. ED) IPC-TM-650 2.4.8 lbs/linear inch (N/mm) 9 (1.61) Dimensional Stability (MD) IPC-TM-650 2.4.39 in/in -0.0002 Dimensional Stability (CD) IPC-TM-650 2.4.39 in/in -0.0003 Density (Specific Gravity) g/cm3 3.05 Thermal Conductivity ASTM F 433 W/m/K 0.63 CTE (x-y) ASTM D 3386 (TMA) ppm/℃ 13-15 CTE (z) ASTM D 3386 (TMA) ppm/℃ 46 Outgassing (%TML) ASTM E 595 % 0.02 Outgassing (%CVCM) ASTM E 595 % 0.01 Outgassing (%WVR) ASTM E 595 % 0.01 Flammability Rating UL 94 V-0 CER-10 Laminate and Typical Applications On the screen, you can see a CER-10 laminate. Taconic CER-10 PCB substrate is also widely used in applications such as filters power amplifiers, couplers, and passive components. Final The machining process for PTFE-based substrates is generally more challenging compared to epoxy-based substrates due to the softness of the PTFE resin system. The type of fiberglass used in the substrate also impacts the routing quality in terms of burrs and fibers. The higher the density of the fiberglass weave, the more difficult it becomes to cut. However, CER-10 employs a fine fiberglass weave, resulting in smooth and efficient routing. That concludes today's episode. Thank you for reading, and we'll see you next time.
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