A low-κ dielectric is like a special type of material that makes it easier for electricity to flow through it. Think of it like a smooth path that allows electrons (tiny particles that make up electricity) to move faster and with less resistance.
You know how sometimes when you're walking on a bumpy or muddy road, it's harder to walk and takes more time and energy? The same idea applies to electricity trying to move through certain materials. But with a low-κ dielectric, it's like putting that electricity on a better road, so it can move faster and more efficiently.
This is especially useful for things like computer chips, which have a lot of tiny electronic pathways carved into them. By using low-κ dielectric, the electricity can move through those pathways more quickly and with less heat buildup, which means the computer can run faster and more smoothly without overheating.
Basically, low-κ dielectric is a special kind of material that helps electricity move more quickly and efficiently, like a smoother and faster road for the tiny particles that make up electricity.