16+ Years Experience in PCB Manufacturing

  • 1-40 layers, Rigid, Flex and Rigid-Flex
  • Middle TG150°C, High TG 170°C-250°C
  • Impedance Control, Heavy Copper 20 oz
  • High Speed, High Frequency, Ceramic, PTFE
  • ISO9001:2015, ISO 13485:2016 Certified & UL Listed
  • Blind & Buried Vias, Micro Vias, Any-Layer HDI
  • Backplane, Back Drill, Embedded Devices, IC Substrate

Why Is High Tg PCB Needed?

The following points summarized by Viaison illustrate why high Tg PCB is needed.

  • High Tg PCBs are more robust and can withstand higher temperatures than traditional circuit boards.
  • The high PCB Tg can provide excellent thermal stability for components. Thus, the performance and reliability can be improved.
  • High Tg printed circuit boards have increased chemical resistance, providing better protection from corrosive environments.
  • They can reduce the risk of heat damage, given that they can disperse heat effectively.
  • They also offer enhanced electrical insulation properties, allowing them to deal with higher voltage levels more efficiently.

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    Viasion --- Providing the Right High Tg PCB for Your Applications

    Extensive knowledge & experience

    Viasion has extensive technical and application knowledge and more than 16 years of practical experience in high Tg printed circuit boards fabrication. Such knowledge and experience enable us to serve our customers effectively and quickly.

    Highest quality

    Our pragmatic attitude, advanced technology, rich experience and excellent products have won the trust of our customers by supplying the highest quality printed circuit boards.

    Competitive pricing

    Utilize the complete supply chain in Shenzhen and our experienced production/engineering team, we can also supply high-quality high Tg PCB boards at low prices.

    Quick delivery

    We cocus on small to medium-volume production, so we can always deliver our products in a short lead time. We can finish PCBs in 24 hours as quick production.

    Firm commitment

    We will give our customers the best support and the most reliable guarantee in all aspects, such as price, technology, lead time and warranty.

    High Tg PCB: The Ultimate Guide

    If you want to know more about PCBs made with High Tg material, here is the complete introduction. Here in Viasion, we can produce high TG FR4 PCBs, high TG Flex PCBs, high TG multilayer PCBs etc. Please get in touch with our sales team for any of your high TG PCB manufacturing demands. 

    Advantages of High Tg Value

    Benefits of Using High Tg PCB

    Base Materials for High Tg PCB

    The base materials for High Tg printed circuit boards are as follows.

    Main Applications of High Tg PCB

    Different Types of High Tg PCB

    Considerations for High Tg PCB Designs and Layout

    A few key factors must be considered when designing PCBs made by high TG materail to ensure successful and reliable performance. High Tg materials are prized for their superior heat resistance and reliability, so special attention needs to be paid when designing High Tg boards.

    First, high Tg materials require careful component selection – high Tg boards are generally designed to hold components with high thermal requirements, such as high-speed processors and ASICs. High Tg boards also require careful trace design – high Tg traces need more space to prevent heat buildup, meaning that high Tg board layouts often have a higher component density than standard PCBs.

    Additionally, high Tg boards must have adequate via design. High Tg vias have a higher thermal resistance than standard vias, meaning High Tg board designs need to be designed with both High Tg and standard vias to ensure the highest performance possible.

    Finally, high Tg boards require careful power layout design. High Tg boards are susceptible to power delivery, and high Tg board designs must be carefully planned to ensure that all components receive adequate power.

    High Tg PCBs can provide superior performance and reliability in various applications with proper attention to component selection, trace design, via design, and power layout design.

    High Tg Circuit Parameters & Specification

    High Tg Circuit Parameters & Specification refer to the parameters that define and quantify a high Tg circuit.

    High Tg circuit parameters are essential to guarantee that the high Tg circuit can perform its design functions without any issues or breakdowns.

    Maximum operating temperature
    Thermal stability range
    Maximum overvoltage & Undervoltage ratings
    Current interruption capacity
    Maximum surge current ratings
    High-frequency response capabilities
    Bonding & grounding requirements
    When selecting a high Tg circuit, it is crucial to consider the operating temperature, thermal stability range, voltage ratings, current interruption capacity, etc.

    Troubleshooting High Tg PCB Fabrication Challenges

    Regarding the fabrication of PCBs with high TG, specialized processes and equipment are required to construct them properly.

    There are a few points to keep in mind to fabricate High Tg printed circuit boards. For example, they require higher temperatures than other printed circuit boards during the fabrication. They also need special organic finishes to withstand high temperatures and protect the board from damage. They may need thicker copper traces to withstand the extreme temperatures they are exposed to better.

    When troubleshooting High Tg printed board fabrication challenges, it is essential to identify the root cause of the issue. It can be done by carefully examining the board design and working with experienced engineers and fabricators who understand this kind of PCBs.

    Environmental Considerations for High Tg PCBs

    Never ignore environmental considerations when selecting high Tg printed circuits for different applications.

    According to Viasion’s experience in high Tg PCB boards manufacturing, environmental factors such as temperature fluctuations, humidity levels, and chemical exposure can impact its performance and should be considered when selecting them. In addition, they are not biodegradable, so proper handling is vital to ensure that they do not cause environmental pollution. They can also contain hazardous substances such as lead and cadmium, so their disposal should comply with all legal and environmental regulations.

    We should be mindful of the potential environmental impacts linked to high Tg PCBs, ensuring that they are used responsibly.

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    Viasion Technology is your trusted partner & one-stop shop for PCB fabrication, components sourcing, PCB assembly and electronic manufacturing. With more than 16 years of experience, we have been supplying high-quality PCBs with competitive pricing for 1000+ customers worldwide. Our company is ISO9001:2015 Certified & UL Listed, and all our products are 100% E-tested and inspected by AOI & X-RAY to meet the highest industry standards. So please get an instant quote from our sales team now, and we will take care of the rest.

    Frequently Asked Questions

    “TG” is glass transition temperature”. It is easier to think that it is the highest temperature the resin can withstand still to be solid.

    High Tg PCBs are circuit boards with high glass transition temperatures. The “Tg” is the temperature point at which the material changes from solid to rubbery. Normally we call high TG if more then 150 degrees.

    High Tg PCBs have better temperature resistance.
    The heat, humidity, chemical, and stability resistance of high Tg PCBs are improved.

    Communication equipment
    Precision instruments and meters
    LED lighting industry
    Radio Frequency Identification
    Antenna Board
    Wireless Boosters
    Embedded System Development
    Embedded Computer System
    AC Power Supplies

    The following describes the simplified manufacturing process for high Tg PCBs.
    Cutting → Drilling → Plated through hole → Lamination → Exposure→ Development → Pattern plating→De-filming →Etching→ De-tinning → AOI inspection →Solder mask→ Silkscreen→ Surface finish→V-cut→ Cleaning →Testing→Packaging

    High Tg PCBs are typically much more expensive than standard printed circuit boards.

    In addition, high Tg printed circuit boards require specialized manufacturing processes and equipment to ensure proper performance. High Tg printed circuit boards may not reach their full potential without the right tools and expertise.

    When designing high Tg PCBs, it is crucial to consider the materials used, the layout of the circuit board, the high-temperature requirements, etc.

    The testing methods are as follows.
    Electrical Test
    Automated Optical Inspection
    Flying Probe Testing
    In-circuit Testing
    Functional Testing

    Viasion will conduct a series of quality control measures for all the products. High Tg PCB is no exception. The following states the main ways of testing and inspection in Viasion.
    First Article Inspection
    Solder Paste Inspection
    AOI (Automated Optical Inspection)
    Visual Inspection
    X-ray Inspection for BGA
    Incoming Quality Control
    In-Process Quality Control
    Quality Assurance
    ICT (In-circuit Testing)
    FCT (Functional Testing)
    Open/short Testing for PCB
    Flying Probe Testing
    The following factors are the cost considerations for high Tg PCBs.
    Base material
    The dimension of the PCB
    The number of layers of the PCB
    Copper thickness
    The thickness of the PCB
    The number of blind/buried vias
    Surface finishes
    Special technology or requirements

    The expected lifespan of a High Tg PCB depends on many factors, including the quality of the materials used in its production and the operating conditions.

    Generally speaking, high Tg printed circuit board is more expensive than normal TG PCBs. For example, FR4 TG is 135 normally, FR4 TG150 is 10% more expensive, FR4 TG170 is 20% more expensive, and FR4 TG180 is around 30% more expensive.