In 1960, Mohamed Atalla and Dawon Kahng invented a type of transistor called MOSFET at Bell Labs. Most ignored the invention, but Fairchild engineers took particular interest in it and developed and commercialized an integrated circuit using it called the MOS IC in 1964. MOSFET allows for simpler more efficient IC production.
The MOSFET transistor has gone on to become the single most produced object man has ever created. A new Iphone has 20 billion MOSFET transistors in it.
In a 1965 article for Electronics Magazine, Gordon Moore of Fairchild observed that the number of components on integrated circuits had doubled every year since their invention with little affect on price. This statement has become known as Moore's law and has driven the tech industry to this day. The observation was revised to doubling every two years in 1975. Die shrinkage is the secret sauce of tech. It's the reason it gets better every years.