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Isola’s Halogen-free Materials Highlight PCB Production at IPC APEX EXPO 2023

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Isola Group, one of the world’s leading developers and suppliers of copper-clad laminates and prepreg materials for printed circuit boards (PCBs), will be inviting visitors to the 2023 IPC APEX EXPO to learn more about its low-loss circuit materials. Isola’s material experts will offer guidance on its latest halogen-free TerraGreen® 400G series of circuit materials for halogen-free PCBs. The 2023 APEX EXPO Conference & Exhibition is scheduled for January 24-26, 2023 in the San Diego Convention Center (San Diego, CA) with additional 2023 APEX EXPO meetings set for January 21-26, 2023 in the same locale.

Visitors to Booth 127 of the 2023 IPC APEX EXPO can learn more about designing and manufacturing high-frequency RF/microwave and high-speed digital circuits in excess of 100 Gb/s using environmentally sound, halogen-free TerraGreen® series of circuit material solutions, including TerraGreen® 400G, TerraGreen® 400GE, and TerraGreen® 400G2 circuit materials. The circuit materials represent low-loss advancements of the company’s popular TerraGreen® and high-frequency TerraGreen® (RF/MW) halogen-free materials.

All are RoHS-compliant for use with lead-free circuit manufacturing processes and compatible with FR-4 circuit material manufacturing processes for creation of cost-effective, hybrid, multilayer circuits. The three new materials are characterized by glass transition temperature (Tg) of +200°C and decomposition temperature (Td) of +380°C.

Sean Mirshafiei, Isola Group’s Chief Sales and Marketing Officer, notes: “We are very excited to offer the PCB industry our three new products that were created with a unique halogen-free resin system that has outstanding CAF and bond line resistance.” He added: “TerraGreen® 400G2 is our most advanced High Speed Digital product. We use ultra smooth copper foil and ultra low Dk glass fabric that are combined with this novel resin system for optimal performance for the next generation of high-end network and communication systems.”

The three halogen-free circuit materials feature permittivity (Dk) that is stable with temperature from -55 to +125°C and across wide frequency ranges with extremely low loss tangents (Df), enabling designers to produce halogen-free circuits with materials with even less loss than the company’s highly regarded Tachyon® 100G circuit materials (see figure) at 28 GHz.

For example, TerraGreen® 400G exhibits typical Dk of 3.1 at 5, 10, and 20 GHz with typical loss tangent of 0.0018 at the same three evaluation frequencies. TerraGreen® 400GE halogen-free circuit laminates offer higher Dk of 3.4 at 10 and 20 GHz with slightly greater loss, with typical Df of 0.0026 at 10 and 20 GHz. The lowest-loss material of the halogen-free trio, TerraGreen® 400G2, features typical Dk of 3.1 at 5, 10, and 20 GHz with typical Df of 0.0015 at the same three evaluation frequencies.

The halogen-free laminates are available in standard thicknesses of 2 to 18 mil (0.05 to 0.46 mm) with ultra-smooth HVLP and HVLP3 copper foils and choice of 1/3, ½, 1 oz. copper weights (12, 18, and 35 μm). The laminates feature low moisture absorption and support manufacturing processes with multiple lamination cycles while meeting 94 V-0 requirements. The RoHS-compliant circuit materials are ideal for 5G infrastructure, high-speed data centers, and wired and wireless communications equipment. For more information about any of the TerraGreen® 400G, 400GE, or 400G2 circuit materials, please visit the Isola website at www.isola-group.com.

About Isola

Isola Group is a leading global developer and supplier of advanced electronic circuit materials for high-voltage, high-power, high-speed, and high-frequency PCBs. By performing ongoing R & D on emerging circuit applications, such as military radar and EW systems, commercial 5G communications networks, and vehicle electronification, and operating a network of global factories, Isola provides cost-effective, high-performance solutions for the most challenging electronic single-layer and multilayer PCB applications.

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