High TG
High Tg PCB is a type of laminate that has much higher Tg than normal FR4 – usually 170°C and above. Tg indicates the temperature at which the resin system inside the PCB becomes rigid to rubbery.
Higher Tg materials are capable of being exposed to higher temperatures without warping, delaminating, or experiencing electrical property loss. With modern electronics trending towards higher power, higher density and lead free manufacturing, High Tg laminates are now a necessity if long term reliability is required in a thermally stressing environment.
Core Advantages of High Tg Materials
1.Enhanced Heat Resistance
High-Tg materials stay hard and stable even at high temperatures. High-temperature stress does not cause them to soften or distort, which makes them especially applicable to high temperature procedures including lead-free reflow soldering.
2. Excellent Mechanical Stability
These are maintained flat and stable even under flow of heat for multi-layer PCB constructions are used. This decreases the chances of bowing, delaminating and other mechanic failures, therefore the quality of the assembly is improved in the average.
3.Lower Moisture Absorption
High-Tg substrates are capable of absorbing much less moisture, and as a result, they can provide stable and reliable insulation performance and dimensional stability in a moist environment. This contributes to an improvement in the environmental durability of the product.
4.Stable Electrical Performance
Their dielectric properties do not decrease at high temperatures, which enables the High-Tg material to better support the propagation of high speed signals or high frequency signals under strong electric field. This diminishes the electromagnetic interference and signal distortion.
5.Suitable for Demanding Processes and High-Power Applications
High-Tg materials offer enhanced reliability and extended life whether employed in power and high-power modules, tight component packing, or complex multilayer HDI configurations.
Our Available High Tg Material Options
In order to satisfy the needs for high speed, high temperature and high reliability applications, we have an extensive High Tg material line up with various brands and grades, such as:
1.Common High Tg Grades
Tg 170°C Series：
A general-purpose High Tg material offering a superior performance to cost ratio.
Tg 180–200°C Series:
High-performance, high-reliability materials for extreme environments and high temperature applications.
2.Optional Well-Known Brands (Available per customer request)
Shengyi: S1000H / S1000-2
Isola: 370HR
Panasonic: R-1755, Megtron Series
ITEQ: IT-180A
3.Supported Manufacturing Capabilities
Applicable to a wide range of advanced PCB structures and special processes, such as:
Multilayer PCBs / HDI boards
Buried vias & blind vias
Heavy copper circuits
High -frequency & high -speed designs
Hybrid stack–ups with mixed materials
