Reliability in semiconductors means that they can work properly and not break even after a long time of use. Think of it like having a toy that you love to play with. If the toy is reliable, it will continue to work properly even if you play with it many times over several days or weeks.
Semiconductors are like the "brain" of electronic devices such as computers, smartphones, and game consoles. They help these devices perform their tasks, like playing games or sending messages, by processing data very quickly. However, because they are so important, it's crucial that they work properly all the time.
To make sure that semiconductors are reliable, manufacturers test them in various ways. They might put them in very hot or very cold temperatures to see if they can still work, or they might subject them to different levels of electricity to see if they are durable. The manufacturers may even simulate different scenarios to see how the semiconductor performs in different situations.
Just like how you need to take care of your toys to make them last a long time, electronic devices with semiconductors also need to be taken care of. For example, you should not drop your tablet or allow it to get wet because it can damage the semiconductor inside it.
With proper care and testing, semiconductors can be very reliable and help electronic devices work properly for many years.