Well kiddo, let me explain it to you in a way you can understand.
Imagine you have a very big puzzle to solve, and you need to fill in all the gaps with different shapes and colors. Now imagine that the shape and color of each piece has to match with the ones around it, otherwise the puzzle won't work.
Now, think about a computer chip. It's a bunch of small parts that work together to make your computer do what it does. One of the most important parts of a computer chip is called the "logic." The logic lets the computer know what to do and when to do it.
A lattice semiconductor is a company that makes a special type of computer chip called a "FPGA" or "Field Programmable Gate Array." An FPGA is like a puzzle that you can change depending on what you need it to do. You can program it to work in different ways, just like you can rearrange the pieces in your puzzle to make a different picture.
So when a company needs a computer chip that can be programmed for different uses, they might use a chip made by Lattice Semiconductor. It's like having a puzzle that can change depending on what you need it to be. Cool, huh?