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High Tg PCB

High Tg PCB

What is High TG PCB

High-TG PCB refers to printed circuit boards built from high-temperature Fr4 material. PCB materials must have flame resistance. It can only be softened by heat and cannot burned. The critical temperature called the term “glass transition temperature” (Tg).



What is Standard Tg?

As usual made with Tg ≥ 170 ℃ PCB material that as a High Tg circuit board. With the rapid development of the electronics industry. high Tg material is widely used in computers. communication devices, precise apparatus, and instruments, etc.

What is Tg in FR4?

FR4 is a code name for the level of epoxy glass material. Tg means glass transition Ordinary PCB materials are not only softened, deformed. melted and other phenomena at high temperatures. but also the mechanical and electrical properties decrease significantly.


When the working temperature reaches the melting point. which means that the temperature exceeds the Tg value. the status of the PCB material changes from a glassy to liquid, which affects the function of PCB. And this value care about the stability of the PCB dimensions.

What is High Tg PCB Material?



Advantages of High Tg PCB

  • Higher stability
  • withstand designs with a high power density
  • Excellent heat resistance
  • Ideal for multilayer and HDI pcb applications


Hot Sales Series High Tg PCB





Process Capabilities of High Tg Printed Circuit Board

  • Count of layers: 2 to 14
  • Processing maximum area: 640mm*1100mm
  • Copper density: 0.5OZ-13OZ
  • Board density: 0.2mm to 6.0mm thickness for double-layer board
  • 4-layer board: 0.4mm-8.0mm 0.8mm to 8.0mm (6-layer board)
  • 1.0mm-8.0mm for eight plies 10 plies: 1.2mm to 8.0mm
  • 1.5mm to 8.0mm in thickness for 12 ply 1.5mm to 8 millimeters
  • 16-ply: between 1.6mm and 8.0mm 18 plies: 2.2mm to 8.0mm
  • 20-layer board: 2.4mm-8.0mm
  • Min line width/spacing requirements: 3mil/3mil
  • Minimum diameter of completed product holes: 0.15 mm
  • Max permissible ratio of thickness to diameter: 12:1
  • Impedance control: +/- 10 percent
  • Lead-tin spray, pure tin spray, chemically sunken gold. chemically sunken tin, chemically sunken silver, plug gold plating, anti-oxidation
  • Materials frequently employed: FR4 Tg130/Tg170°C, Rogers,Arlon, Taconic, and Bergquist


Application for High Tg Board

  • Multilayer boards with many layers
  • Industrial electronics
  • Automobile electronics
  • Fineline trace structures
  • High temperature electronics 

application of high tg pcb


Get A Quotation For Your High-Tg PCB

When it comes to FR-4 High-TG PCBs. GESP Technology has the experience and quality products you need for your industry. If you work with PCB that you need to high temperatures, you need to be sure those PCBs can take the heat.
At GESP Technology, our high-temperature PCB products can handle extreme . PCB glass transition-temperature rates and retain their integrity. so you can use these High-TG FR-4 boards with confidence. Contact us for more information about High-TG PCB.

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