Precision PCB Fabrication, High-Frequency PCB, High-Speed PCB, Standard PCB, Multilayer PCB and PCB Assembly.
The most reliable PCB & PCBA custom service factory.
PCB Material List

PCB Material List - Isola MT77 DataSheet

PCB Material List

PCB Material List - Isola MT77 DataSheet

Isola MT77 DataSheet

The main parameters of Isola MT77: Tg=200 °C, Td=360 °C, Dk=3.00, Df=0.0017


Isola Astra MT77 is a low-loss FR-4 process-compatible PCB material and prepreg. The Isola MT77 has excellent physical properties, including a wide operating frequency and a higher temperature range. These PCB materials are very suitable for commercial RF/microwave printed circuit design and mm-wave applications.


Isola Group is a global supplier of copper-clad laminates for PCBs, with multiple manufacturers such as Isola, AlliedSignal, and AlliedSignal's former parent company. As a global enterprise, Isola's production factories are located throughout North America, Europe, and Asia. In North America, Isola has factories on both the west and east coasts. In Europe, the factory is located in Dylan near Cologne, Germany, and there are four factories in Asia, two of which are in Taiwan, China, and two in the mainland. Isola's main products are high Tg FR-4, high-speed digital materials, and RF microwave copper-clad plates. Isola's market service positioning is clear, with revenue mainly coming from Asia, followed by Europe and North America.


Isola's HSD circuit materials include I-Speed, I-Tera MT40, and Tachyon 100G, which are used to develop new high-speed TerraGreen 400G laminates and prepregs for low loss, halogen-free circuits, and for designs that require high SI performance to 100gb/s or above.


The circuit materials for high-frequency RF/MW circuits include Astra MT77, I-Tera MT40 (RF/MW), and IS680/IS680 AG laminated materials.

Isola Astra MT77

Isola Astra MT77

Standard TerraGreen circuit materials provide halogen-free options for many general-purpose circuits, while TerraGreen 400G (RF/MW) circuit materials provide halogen-free options at RF, microwave, and higher frequencies. These extremely low-loss circuit materials support the circuit to enter the millimeter wave (mmWave) frequency range, up to 110GHz.


Due to the challenging combination of high circuit density and miniaturization, which is the growth trend of HSD and RF/MW circuits, the understanding of different circuit materials required for modern electronic products of Isola HSD and RF/MW circuits, as well as the compatibility of basic material characteristics such as thermal expansion coefficient (CTE), enables the long-term coexistence of reliable and different circuit materials on hybrid PCBs. High-frequency circuit materials such as MT77 and I-Tera MT40 are also compatible with the FR-4 process, making it easy to manufacture hybrid circuits.


The development of Isola MT77 PCB materials and prepreg materials has attracted multiple attention, especially from PCB manufacturers. These materials will be applied in several mm-wave systems.


Isola introduced the Isola Astra MT77 Microwave Theory and Technology Society's 2019 IMS Microwave Week at the IEEE event. Some of the main applications of the Isola Astra MT77 include remote antennas and radar applications for automobiles. The increasing popularity of these materials in applications involving adaptive cruise control, pre-collision, and blind spot detection is expected to drive demand for these PCB materials in the coming years. These PCB materials can also be used for lane departure warning and stop-and-stop systems.


The Isola MT77 exhibits excellent electrical characteristics in the temperature range of -40 °C and +140 °C, such as better dielectric constant (Dk) at W-band frequencies and higher stability. In addition, Isola MT77 provides an ultra-low loss factor (Df) of 0.0017. Several applications involving the mm-wave frequency band prefer ultra-low loss factors. Due to its cost-effectiveness, Isola MT77 material is an ideal substitute for PTFE and other types of microwave-laminated materials.


Exclusive features of Isola MT77 material


With the rise of 5G, the new wireless world, and an increasing number of mm-wave applications, the demand for advanced PCB materials, may escalate in the coming years. In addition, 5G technology may drive the demand for ultra-low loss FR-4 process-compatible PCB materials and add more value to the PCB industry.


Some exclusive features include broad industry recognition and RoHS compliance. Isola MT-77 is an ultra-low loss FR-4 process-compatible PCB material and is also compatible with lead-free components. Some processing advantages include shorter lamination cycles, lower drill bit wear, good flow and filling, and higher dimensional stability. This type of PCB material does not require plasma decontamination, which also helps to reduce manufacturing costs. However, the processing of these laminated materials requires several lamination cycles. In addition, the Isola MT77 is compatible with HDI technology and may drive its demand in the near future.