When were microchips created and how?

In 1958-1959 two men were working on the idea for different companies. One was Jack Kilby with Texas Instruments and the other was Robert Noyce who began Fairchild Semiconductor which will become Intel. Kilby has 60 patents to his name and is known as the inventor of portable calculator. His microchip was first used by the government for the minuteman missle. Noyce has 16 patents to his name.