Difference between Substrate & Base material in Printed Circuit Board?

In summary, the main difference between substrate and base material in Printed Circuit Boards (PCBs) and VLSI (Very Large Scale Integration) is the material used. PCBs typically use fiberglass material, while VLSI ICs are made of silicon. The VLSI substrate can also be made of copper plate, but it can also be made of other materials. The base material in VLSI is the material used to build the ICs and can vary depending on the specific application.
  • #1
mremadahmed
16
1
What is the Difference between Substrate & Base material in Printed Circuit Board?

What is the difference between Substrate material in PCB and in semiconductor [VLSI] ?Is the VLSI substrate Cu plate?

Is the substrate of VLSI a fibre glass or it is something else?

What is the base material/Substrate in VLSI?
 
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  • #2
mremadahmed said:
What is the Difference between Substrate & Base material in Printed Circuit Board?

What is the difference between Substrate material in PCB and in semiconductor [VLSI] ?Is the VLSI substrate Cu plate?

Is the substrate of VLSI a fibre glass or it is something else?

What is the base material/Substrate in VLSI?

VLSI ICs are generally made of silicon.

PC Boards are generally made of fiberglass material, like FR4.
 

1. What is the difference between substrate and base material in a printed circuit board?

Substrate and base material are two essential components of a printed circuit board (PCB). Substrate refers to the insulating layer that supports the conductive components of the PCB, while base material is the underlying material that provides structural support and thermal management.

2. What are the common types of substrate and base materials used in PCBs?

The most commonly used substrate materials in PCBs are fiberglass-reinforced epoxy resin (FR4), polyimide, and ceramic. As for base material, aluminum, copper, and fiberglass are commonly used for their strength and conductivity.

3. How does the choice of substrate and base material impact the performance of a PCB?

The choice of substrate and base material can significantly impact the overall performance of a PCB. The type of substrate can affect the electrical properties, such as dielectric constant and dissipation factor, while the base material can impact the thermal conductivity and mechanical strength of the PCB.

4. Can substrate and base material be customized for specific applications?

Yes, substrate and base material can be customized for specific applications. For example, for high-frequency applications, specialized substrates with low dielectric constant and loss tangent can be used. Similarly, base materials can be selected based on the required thermal management properties for a particular application.

5. How do substrate and base material affect the cost of a PCB?

The choice of substrate and base material can significantly impact the cost of a PCB. Materials such as FR4 and copper are more affordable compared to specialized substrates and base materials, which can increase the overall cost of a PCB. However, using the right materials can also improve the performance and reliability of the PCB, making it a worthwhile investment.

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