Size has always proved an important aspect of a printed circuit board across the globe. However, when I mention size, what comes to mind entails the need to have more components on less panel space, which, while true, fails to recognize the significance of size in terms of board thickness. In the present day and time, circuit board thickness has become a fundamental feature of PCB. No wonder you find circuit boards christened tg130, tg150, tg180, tg170, and tg260, among other customized board sizes.
The article will focus on the high TG printed circuit boards and primarily on tg180 PCB. Therefore, fasten your belts as we undertake this crucial PCB journey.
The TG180 Printed Circuit Board
As you might have encountered from time to time canvassing circuit board subjects, the word TG implies to the glass transition temperature, a key value in determining the point a material changes form from its glassy and rigid state into a rubbery and formless state, especially in the world of circuit boards.
Different glass transition temperature values exist for diverse PCB types, which play an instrumental role in coining their respective names. For instance, three wide categories of the TG range exist, consisting of standard or low TG, mid-TG, and high TG. A low and standard TG often encompass TG value below 130 degree Celsius. Middle or mid-TG values fall within the range of 130 degrees Celcius to below 170 degrees Celcius. Moreover, the high TG values entail any value equivalent to or above 170 degrees Celcius.
It, therefore, implies that the tg180 PCB falls under the high-TG category. So what makes up a tg180 printed circuit board?
The tg180 PCB, alternatively referred to as the fr4 tg180 printed circuit board, primarily consists of an fr4 board, layers of copper traces, and vias, among other crucial circuit board components. Suppose you want to understand the importance of the tg180 board among other high-TG boards. In that case, it becomes vital to know the influence of temperature on the board integrity both during the manufacturing process and when getting used to a particular function.
The temperature always plays a key role in the lamination process of PCBs, especially during the reflow process. It not only ensures a successful copper plating or trace embedding process but ensures that every circuit board maintains its integrity and performs as required upon completion of the assembly process. for instance, if you have designed your PCB with a TG material value of say 130 degrees Celsius then use more than 130 degree Celsius temperature while passing it through the reflow oven, then you will end up damaging the glass-epoxy resin of the board, which will damage everything else.
Conversely, subjecting the PCB to inadequate temperatures during the manufacturing or assembly process will also interfere with the quality of the entire PCB, as it will not pass through quality assurance. Therefore, it implies subjecting the correct temperature through the manufacturing and assembly process to ensure a quality and efficient printed circuit board.
Another crucial area in that temperature plays a significant role entails the operating environment of the PCB. Circuit boards transmit electric, data, and other allied signals. Therefore when deployed where it transmits high current flows for extended periods besides sitting in high-temperature settings, the board can deform, subsequently leading to short-circuiting or interference with signal transmission. All these will render the PCB inefficient, thus making it useless. It all arises because an increase in temperature forces the circuit board materials to expand. Beyond their TG point, the material transitions into a rubbery and amorphous that can block through-holes or interfere with copper traces, thus impeding the operation of the circuit.
Specific Effects of Temperature on TG180 Board
As already established, the rf4 substrate provides the structural platform upon which the circuit traces get built in a printed circuit board. Rf4s have different grades depending on the temperature ranges they can handle. Whenever you subject an rf4 substrate to more temperatures than it can handle, then you will set yourself for failure. Below, a detailed explanation of how temperature impacts the rf4 material of the PCB.
- Crosslinking. It proves an instrumental fr4 material aspect, though it can always get affected when subjected to higher than designed temperatures. Temperatures beyond the TG point of the specific rf4 material diminish the crosslink density. Consequently, it influences segmental mobility material elements, thereby making it simpler for the solid glassy state to the amorphous and rubbery state.
- Molecular weight. The molecular weight has a close association with the crosslink density. Whenever you surpass the fr4 TG value, the crosslink density diminishes. Consequently, it will reduce the molecular weight, which ultimately leads to a change in the material state.
- Polymer flexibility. While the fr4 material has an allowance of always expanding and contracting based on temperature fluctuations, a temperature range beyond the TG value will become irreversible. It will impact the crosslinking density besides the molecular weight. Consequently, the polymer flexibility will drastically reduce, thereby compromising its capacity to operate seamlessly. For example, the size of the hole might enlarge or diminish, which can have adverse effects on the mechanical and electrical attributes of the printed circuit board design.
Therefore, it becomes crucial to function with an fr4 tg180, principally when the temperatures prove below 180 degrees Celsius. Additionally, it becomes ideal to remember the TB recommendations to stick with the material’s TB ratings that fall at least 20 to 25 degrees Celsius short of the projected TB value. If you adhere to this regulation, then you will achieve better-printed circuit board stability besides a seamless PCB operation when deployed.
Benefits and the Application of the TG180 PCB
As a high glass transition temperature PCB, the tg180 has obvious benefits and application areas. But what advantages does it present to you as a PCB option, and where can you use this type of printed circuit board? If you have a nice PCB budget, it will become wise to invest in a tg180 PCB. You do not need to feel silly and lose money on a TG material that cannot suit your printed circuit board needs besides the manufacturing conditions. Such a scenario will also set you back on time besides inconveniencing you.
Attributes of a TG180 Printed Circuit Board
Temperature is instrumental in ensuring the stability of PCBs as any fluctuations of ensuring stability when trying to work with printed circuit boards. For illustration, an upsurge in temperature results in the material expansion of the rf4, thereby leading to a transformation in its properties. Therefore, at RayMing PCB and Assembly Company, we strongly endorse the utilization of tg180 printed circuit boards, primarily for systems that emit and operate within 150 and 180 degrees Celsius.
The company answers all your PCB inquiries regarding manufacturing, assembly, and fabrication services besides essential PCB products such as connectors, etc. You will get quality printed circuit board services and products. Additionally, the company has an established history of dealing in PCB products and services.
TG180 Material Attributes
A tg180 circuit board rf4 has several attributes, which makes it a viable component for PCBs. Some of the main attributes entail the following.
- Diminished thermal expansion
- The tg180 PCB undergoes very little dimension changes when it gets subjected to elevated temperatures. Therefore, it means that the material’s chances of breaking substantially diminish if the temperatures drop.
- Enhanced resistance to moisture and heat
- The tg180 material provides superior resistance to chemicals and mechanical elements, implying that your printed circuit board will have better stability than low and mid-level fr4 boards.
With all the information gathered, do you feel ideas on potential utilization of an fr4 tg180 PCB? High-temperature operations imply a need for a PCB that will not only handle the temperatures but work efficiently and seamlessly.
Applications of TG180 PCB
In this section, I have detailed the potential application areas for a tg180 printed circuit board.
- Metal industries. Regardless of the element in question, metal proves vital in sustaining and easing our way of life. It can include steel, lead, titanium, aluminum, etc., in easing movement, health, housing, and other vital life aspects. But to mine and refine these metals into the ideal shapes, the industry has to cut, weld, grind and melt them. Such a process relies on machines that, in turn, rely on printed circuit boards. While temperatures in this industry process can vary, they usually prove high, and thus the need for a tg180 PCB. The high-Tg PCB will ensure a seamless operation of the machine’s micro-controller.
- Engine controllers. A tg180 PCB proves incredibly useful in the aerospace and vehicle industries, as they always need dependable controllers to improve engine efficiency. Its usefulness comes about because of the featured high RPM (rotations per minute) and prolonged running hours. Such as scenario increases the machine’s unit’s temperatures which can destroy the PCB, if not of an approved TG grade.
Advantages of Using a Tg180 PCB
- Higher stability. You can bank on the better heat, moisture, and chemical resistance that tg180 printed circuit boards provide. Therefore, they also become more stable and with an increased board’s shelf-life.
- Ultimate alternative for multi-layer PCBs. A printed circuit board possessing several layers proves dense and intricate. Such intricacy and density result in more heat generation that can effectively get handled by a tg180 printed circuit board.
Conclusion
If you want a PCB for intense and high-temperature generation operations, picking the tg180 printed circuit board can inspire an inspired decision. You can always get it in multiple layers from us. You only need to contact us.
