Voltage inside an semiconductor chip?

In summary, the voltage factor in ICs is determined by various factors such as thickness of the semiconductor junction, breakdown conditions, gate potential, and circuit speed and power. In digital circuits, lower voltages and currents can be used to reduce transit times and dissipation. Watches are a good example of ICs using low voltages and currents, but with lower clock speeds.
  • #1
shankar
17
1
i have a basic question about IC

we give 5 volt in general into an IC but the size of the IC is in nano measure if this 5 volt is given to such a small area the volt/area will become very large and how the IC still functions without burning.

let me know how this happens .
 
Engineering news on Phys.org
  • #2
shankar said:
i have a basic question about IC

we give 5 volt in general into an IC but the size of the IC is in nano measure if this 5 volt is given to such a small area the volt/area will become very large and how the IC still functions without burning.

let me know how this happens .

Voltage is the "across" quantity, so the important thing is the thicknes of the semiconductor junction. It doesn't need to be very thick to withstand 5 volts. The "through" quantity is current, which is usually in the miliampere range. So the current density ne charge flux is not that great.
 
  • #3
ya you are right but how to justify the voltage factor. As you said, yes it is across factor but till we nned to justify voltage if not volt/area. howto do it.
 
  • #4
chip voltages

There are several factors determining voltage -- but not area --
in cases where normal transistors are used there are breakdown conditions to think of since some junctions are reverse biassed and they are not very thick.
In Cmos circuits there are limits to the gate potental before 'punch through'
of the gate.
But there is also a question of circuit speed and power, in digital circuits such as CMOS the internal voltages are switched from rail to rail if this voltage is smaller and for given drive conditions ( size and doping defined ) the transit times of the nodes can be shorter and dissipation reduced.
Watches are a good example employing thousands of transisitors with voltages as low a 1 volt and currents < 1 microAmp, but the clock is only
a few 10's of kilohertz.
 

1. What is the purpose of voltage inside a semiconductor chip?

Voltage is used to power the circuitry inside a semiconductor chip. It provides the necessary energy for the electrons to flow and perform their designated tasks, such as storing and processing data.

2. How is voltage regulated inside a semiconductor chip?

Voltage is regulated through the use of transistors and other electronic components. These components act as switches, controlling the flow of electricity and maintaining a consistent voltage level throughout the chip.

3. Can the voltage inside a semiconductor chip be changed?

Yes, the voltage inside a semiconductor chip can be changed through the use of external power sources. However, altering the voltage can affect the performance and reliability of the chip, so it should only be done under controlled conditions.

4. What happens if the voltage inside a semiconductor chip is too high?

If the voltage inside a semiconductor chip is too high, it can cause damage to the electronic components and potentially lead to a malfunction or failure of the chip. Therefore, it is important to regulate and monitor the voltage to ensure it stays within safe levels.

5. How does the voltage inside a semiconductor chip affect its speed and performance?

The voltage inside a semiconductor chip directly affects its speed and performance. A higher voltage can increase the speed of data processing and improve overall performance, while a lower voltage can slow down the chip and decrease its capabilities.

Similar threads

  • Electrical Engineering
Replies
9
Views
866
  • Electrical Engineering
Replies
11
Views
1K
Replies
1
Views
852
  • Electrical Engineering
Replies
9
Views
3K
Replies
1
Views
2K
  • Electrical Engineering
Replies
15
Views
2K
Replies
4
Views
1K
  • Electrical Engineering
Replies
3
Views
1K
  • Electrical Engineering
Replies
1
Views
5K
  • Electrical Engineering
Replies
4
Views
1K
Back
Top