Skip to content

What are the Properties and Processing Conditions of the Arlon 85HP PCB Material?

Have you been searching for a reliable PCB material that offers great performance for even very demanding high layer and thermal applications? Then search no more, because the answer is right here.

This answer is the Arlon 85HP PCB Material. You may doubt my recommendation now, but with this article, you will come to understand why the Arlon 85HP PCB Material is a top-quality one for your PCB needs.

Please read on, as we explain better.

What is the Arlon 85HP PCB Material?

The Arlon 85HP PCB Material is categorized among the best polyimide resin systems with a high temperature for glass transition at 250 degrees Celsius. This unique polyimide resin blend leads to a great performance for even very demanding high layer and thermal applications.

In contrast to the conventional polyimide systems, the Arlon 85HP PCB Material features a low coefficient of thermal expansion at the Z-axis. Furthermore, it has two ties the value of the thermal conductivity of the traditional resin systems.

Also, the Arlon 85HP PCB Material has shown to reduce wicking and cracking in thick copper, high density, high layer designs, which challenge the traditional resin systems.

Furthermore, the Arlon 85HP PCB Material is useful in applications such as mission critical printed wiring boards for space, aerospace, oil and gas downhole drilling, military, as well as other applications of high reliability.

What are the Properties of the Arlon 85HP PCB Material?

Physical Properties

The Arlon 85HP PCB Material has the following physical properties

  • It has a density of about 1.7 g/cm3
  • Flammability rating of HB
  • Thermal conductivity of 0.5 W/mk
  • Water absorption of 0.19%

Electrical Properties

The Arlon 85HP PCB Material has the following electrical properties.

  • Its dielectric constant is 4.2 at 1 MHz
  • Also, at 1 MHz, it has a dissipation factor of 0.009
  • It has a volume resistivity of 8.0 × 107 MΩ-cm for C96/35/90, while at E24/125, it has a volume resistivity of 5.9 × 107 MΩ-cm
  • Its surface resistivity at E24/125 and C96/35/90 is 6.9 × 107 MΩ and 8.0 × 107 MΩ respectively
  • Also, this pcb material has an electrical strength of 48 kV/mm
  • Its arc resistance is 182 seconds

Mechanical Properties

The Arlon 85HP PCB Material has the following mechanical properties.

  • Poisson’s Ratio of 0.15
  • Its young’s modulus for CD/MD is 3.0
  • Tensile strength is 241 Mpa
  • The Poisson’s Ratio along the X, y axis is 0.15

Thermal Properties

The Arlon 85HP PCB Material has the following thermal properties.

  • It has a temperature for glass transition that is at least 250 degrees Celsius.
  • Between a temperature of 50 – 260 degrees Celsius, the Arlon 85HP PCB Material’s expansion along the Z-axis is less than or equal to 1%.
  • Also, its decomposition temperature is 380 degrees Celsius
  • For the X, Y axis it has a CTE of 17 ppm/C.
  • At a temperature of 430 degrees Celsius, the Arlon 85HP PCB Material loses 5% of the initial weight
  • The T300, T288, and T260 are all higher than 60 minutes

What are the Processing Conditions of the Arlon 85HP PCB Material?

The following are the processing conditions of the Arlon 85P PCB Material.

  • Before you laminate, the prepreg should be vacuum desiccated for about eight to twelve hours.
  • Also, process the inner layers via etch, strip, and develop, making use of the standard practices of the industry.
  • Make use of brown oxide or the alternatives on the inner layers
  • Furthermore, adjust the dwell time of the oxide bath. This is to make sure that there is uniform coating.
  • Also using a rack, bake the inner layers for an hour at a temperature range of 107 degrees Celsius and 121 degrees Celsius immediately before lay-up.

What is the Lamination Cycle of the Arlon 85HP PCB Material?

The lamination cycle for the Arlon 85HP PCB Material is as follows.

  • Pre-vacuum for about thirty to forty-five minutes
  • Then, control the rise in heat to 4.5 degrees Celsius to 6.5 degrees Celsius every minute between 100 degrees Celsius and 150 degrees Celsius. It is preferable to use vacuum lamination
  • Also, set the cure temperature to stand at 218 degrees Celsius. Furthermore, the cure time for this temperature is 2 hours. In addition, cool down at a pressure of 5 degrees Celsius per minute maximum.
  • In addition, drill between 350 and 400 SFM. You should use undercut bits for vias 0.0 and smaller.
  • Using plasma or alkaline permanganate, desmear with settings, which are great for polyimide. To get a positive etchback, plasma is preferable.
  • You may use standard parameters for profiling
  • Bake for about one to two hours at a temperature of 121 degrees Celsius before solder.

What are the Benefits of Using the Arlon 85HP PCB Material?

Because the Arlon 85HP PCB Material comes with great features, below are the benefits of using it.

  • Very useful in applications operating at an elevated temperature and needs a long life
  • Lower immigration as a result of different fiber reinforcement
  • Not too sensitive to drilling and routing variations
  • Processing this material is easy
  • Product shrinkage is low
  • It is environmentally friendly
  • Manufacturing of high-quality through holes possible
  • Easy repair under harsh conditions
  • You can handle it safely due to RoHS compliance
  • Supports a productive SMT attachment
  • Compatible with processing techniques that are lead-free

Where can you Apply the Arlon 85HP PCB Material?

This unique polyimide resin blend leads to a great performance for even very demanding high layer and thermal applications. This is why the Arlon 85HP PCB Material is useful in pcb fabrications. These are applications, where you can use this PCB material.

  • Oil and gas downhole drilling
  • Aerospace
  • Space
  • Military
  • other high-reliability applications

Conclusion

In this article, we have fully discussed the properties and processing conditions of the Arlon 85HP PCB Material. We also included more information, which includes the features, benefits, and more. However, if you have any questions, please drop a message. We will be ready to listen to you and provide answers.