Copper clad laminates are known as the main substrate materials of printed circuit boards. This has in-built electronic and semiconductor parts, which perform the different functions of these electronic appliances. Furthermore, this forms the most significant component of any electronic product.
In this article, we will be focusing on the Doosan DS-7409D (X) PCB material. This is termed middle loss. This company – Doosan is known to bring the world some happiness with its technologies, as a great leader of electronic materials.
To help you understand what this PCB material offers, we will be discussing its properties. This includes its mechanical, thermal, and electrical properties. We will also discuss its applications, so you can easily tell if this material is great for you.
What is the Doosan DS-7409D (X) PCB Material?
The Doosan DS-7409D (X) PCB material is one with lots of great properties. It is well-known as a middle loss substrate material. It has a low dissipation factor as well as a low dielectric constant. This is great for high signal integrity and signal speed.
Furthermore, it has a low coefficient of thermal expansion and a high temperature for glass transition. Also, its thermal performance and through hole reliability is excellent. This makes it suitable for any soldering process that is lead-free.
You can apply the Doosan DS-7409D (X) PCB material in different applications. These include base stations, as well as high frequency measuring instruments and frequency modules. You can also use them for high speed network equipment and computing.
Let’s continue by explaining the different properties of the Doosan DS-7409D (X) PCB material.
Properties of the Doosan DS-7409D (X) PCB Material
For this subtopic, we will be dividing these properties into three main parts. These include thermal properties, mechanical properties, and electrical properties.
Thermal Properties
Thermal properties have to do with the properties of the material that relates to its ability to conduct heat. To explain further, we mean that these materials exhibit these properties when heat passes through it. The thermal properties of this material include the following
Glass transition temperature (Tg)
The Doosan DS-7409D (X) PCB material has a Tg value of 220 degrees Celsius. This is the temperature at which glass transition occurs and it is usually lower in contrast to the melting temperature of the material’s crystalline state. At this temperature, the Doosan DS-7409D (X) PCB material transforms from its ductile look to one that is brittle and hard.
Decomposition temperature
The Doosan DS-7409D (X) PCB material has a decomposition temperature of 365 degrees Celsius. This value indicates the temperature at which the material will decompose chemically. It involves an endothermic reaction, because heat is usually needed to break the material’ chemical bonds when decomposition is on-going.
Coefficient of Thermal Expansion
At the X and Y axis, the Doosan DS-7409D (X) PCB material has a CTE value of 16/16 ppm/℃. Furthermore, at the Z-axis, it has a CTE value of 35/260 ppm/℃. This property indicates the extent at which a material can expand when it is heated.
This is another great thermal property for any PCB material. For the Doosan middle loss DS-7409D (X) PCB material, its thermal conductivity value is 0.4 W/m·k. This value signifies the rate through which heat transfer takes place via conduction by the material’s cross-section area.
The last property categorized under thermal is the Z expansion, which has a value of 2.4%.
Mechanical Properties
The mechanical properties of the Doosan middle loss DS-7409D (X) PCB material include Young’s modulus, Flexural strength, peel strength and Tensile strength.
Young’s modulus
The Young’s modulus of the Doosan DS-7409D (X) PCB material is about 22 to 24 GPa. This value indicates how this material can easily deform and stretch.
Flexural Strength
The flexural strength of the Doosan DS-7409D (X) PCB material is 420 MPa. This value signifies the ability of the material to resist changes or deformation anytime it is under load.
Peel strength
The peel strength of the Doosan DS-7409D (X) PCB material is 220 Mpa. Generally, this value helps in measuring the material’s bond strength, most likely an adhesive.
Tensile Strength
The tensile strength of the Doosan DS-7409D (X) PCB material is 1.0 kgf/cm. This signifies how strong this material is to withstand any tensile or pulling force. It also refers to the Doosan DS-7409D (X) PCB material’s breaking strength when a force that can break many different strands of the material.
Electrical Properties
The electrical properties of the Doosan DS-7409D (X) PCB material include the dielectric constant, dissipation factor, volume resistance, and surface resistance.
Dielectric Constant
The dielectric constant of the Doosan DS-7409D (X) PCB material varies. At 1 GHz and 2 GHz, it has a value of 3.8 and 3.65 respectively.
Also, at 5 GHz and 10 GHz, it has a value of 3.63 and 3.62 respectively. Dielectric constant has to do with a quantity that measures a material’s ability to store some electrical energy in a given electric field.
Dissipation Factor
The dissipation factor of the Doosan DS-7409D (X) PCB material varies. At 1 GHz and 2 GHz, it has a value of 0.004. Also, at 5 GHz and 10 GHz, it has a value of 0.005 and 0.006 respectively.
This value indicates the Doosan DS-7409D (X) PCB material’s inefficiency to act like an insulator. Furthermore, this material has a low dissipation factor; therefore, it is very efficient as an insulating material.
Surface Resistance and Volume Resistance
The surface resistance of the Doosan DS-7409D (X) PCB material has a value of 109 MΩ. Also, the volume resistance of the Doosan DS-7409D (X) PCB material has a value of 109 MΩ-cm.
Other electrical properties of the Doosan DS-7409D (X) PCB material includes water absorption at 0.13% and 0.2% at D-24/23 and D-2/100 respectively. Also, its flammability rating is V-0.
Conclusion
Here comes the end of our article on the Doosan middle loss DS-7409D (X) PCB material. Take you time to go through all the properties again to see if this suits your PCB needs. If you have further questions, we are always here to help out.
