In this article, we’ll discuss what really characterizes the Arlon 85NT. The relevant information is available for pcb design engineers to refer to in the selection of materials, QFPCB offers the best services when it comes to the High TG pcb laminate, so you can also call QFPCB to discuss.
Arlon 85NT is a pure polyimide with a high glass transition temperature of 250⁰C laminate and prepreg system, reinforced with a non-woven aramid substrate. Arlon 85NT combines the high-reliability features of polyimide (improved PTH reliability and temperature stability) with the low in-plane (X,Y) expansion of 6-9 ppm/ ⁰C and outstanding dimensional stability of the aramid reinforcement. Polymeric reinforcement results in PCBs typically 25% lighter in weight than conventional glass-reinforced laminates. Meets requirements of IPC-4101/53.
Features of the Arlon 85NT PCB Material
Features:
- Low in-plane (X,Y) CTE of 7-9 ppm/°C allows attachment of SMT devices with minimal risk of solder joint due to CTE mismatch.
- Nonwoven aramid reinforcement provides outstanding dimensional stability and enhanced registration for improved multilayer yields.
- Decomposition temperature of 426°C, compared with 407°C for pure polyimide, offering outstanding high-temperature processing stability.
- Aramid reinforcement results in PCBs typically 25% lighter in weight than glass-reinforced laminates.
- Laser and plasma ablatable for high speed formation of microvias and other features as small as 25µm (µ0.001”) .
- Electrical and mechanical properties meeting the requirements of IPC-4101/53 .
- Compatible with lead-free processing.
Typical Applications:
- Military and commercial avionics, missiles and missile defense, satellites, and other high-reliability SMT applications requiring low in-plane (X,Y) CTE values .
- PCBs that are subjected to high temperatures during processing, such as lead-free soldering, HASL .
- Applications with significant lifetimes with elevated temperature cycling, such as aircraft engine instrumentation, on-engine applications, or industrial sensors.
- Burn-In Board
What Kinds of Resistance Does Arlon 85NT PCB Material Have?
Each prepreg system and laminate material possesses unique resistance characteristics, which are determined by their specific properties. The ability to withstand varying temperatures and heat is solely reliant on the inherent properties of the laminate. Furthermore, the materials utilized in creating these prepreg systems dictate whether the resulting PCB material can endure harsh or hazardous environmental conditions. Let us now delve into some of the resistance traits exhibited by Arlon 85NT.
Thermal Resistance
This particular prepreg system boasts a remarkable capacity for resisting heat flow across both its internal and external surfaces, making it an ideal choice for applications requiring exceptional thermal resistance. Consequently, this laminate excels in high-temperature environments due to its outstanding thermal reliability, setting it apart from other prepreg systems.
CAF Resistance
The Arlon 85NT PCB material can withstand the procedures for electrochemical corrosion or migration. Interestingly, this aids how long lasting this laminate material can be. This prepreg system has the ability to retain its high performance because of its CAF resistance.
Water Resistance
This is very important for all laminates and prepreg systems. Although the level at which laminates can absorb water is considerably different. This laminate is waterproof and has a low rate of water absorption.
Therefore, it has the capacity to hold water. It serves as a barrier to moisture condensation or doesn’t allow the flow of water through its components. Hence, this laminate is durable and works in diverse applications and different atmospheres.
UV Resistance
This prepreg system can resist any ultraviolet radiation which often affects the performance of many PCB materials. Since it can block any ultraviolet radiation, it makes it become durable. Therefore, heat, high temperature or light radiation can’t affect this laminate material because of its resistance rate.
The Advantages of Using The Arlon 85NT PCB Material
There are many benefits that come with using this type of prepreg system. It works effectively for most applications because of its potential to resist some dangerous environmental conditions.
High Rate of Resistance
Earlier we listed the different kinds of resistance levels this laminate material has. One benefit with using Arlon 85NT is that its resistance rate is high such that no harmful chemicals or UV light, high degrees of temperature can affect it. This is one thing to always check out for in PCB materials.
Thermal Stability
We shouldn’t forget that the ability to retain stability under high temperature is one unique feature of this laminate material. With increasing temperature, this prepreg system can still work without any hindrance.
Simple Processing Modes
When it comes to the processing modes of Arlon 85NT, it is very simple. This kind of laminate doesn’t require extra procedures for processing it. The processing modes are quicker and simpler in comparison to other PCB materials. It has faster speed when in operation in many applications or multilayer circuit boards.
Durability
This is one advantage of using this prepreg system. When it comes to high durability, this PCB material is one that gives you value for your money. This is because engineers and designers always ensure this material is compatible with lead free assembly. Thus, it can be potent for years connecting multilayers in the circuit boards.
Multiple Performance
When we talk about versatility, this is the laminate material to opt for. This is because it serves multiple purposes for different applications. That is why it is easier to use Arlon 85NT for various applications. It is not a rigid kind of prepreg system that works only on one type of application.
What Mechanical Properties of Arlon 85NT?
It is crucial to consistently examine the mechanical properties of this laminate material. This prepreg system, renowned for its exceptional dimensional stability, encompasses the following mechanical components. When force is applied to this material, these mechanical properties are susceptible to alteration thereafter. Hence, it is imperative to thoroughly consider these mechanical properties.
Elasticity Modulus
You should consider the potential of this prepreg system to withstand any deformation resulting from heat application. When you apply heat on laminates, it has the possibility of changing form. This implies that it requires accurate measurement for the elasticity modulus of Arlon 85NT.
Peel Strength
This is one of the mechanical properties of Arlon 85NT that designers look out for. This is because it can enhance bonding of this laminate on various kinds of surfaces. However, with too much force, the peel strength may become affected.
Conclusion
Arlon 85NT PCB material exhibits exceptional durability and weather resistance. One crucial aspect to consider is its thermal resistance, as it directly impacts performance across a range of temperatures. The mechanical properties of this laminate material are of utmost importance, particularly the peel strength among other key attributes. Undoubtedly, this prepreg system excels in diverse applications and offers excellent value for your investment.
