Throughout the whole of human history, there were some great inventions that sped up the civilized world, such as paper, electricity, computers, etc. Among them, one invention is really innovative due to its complex structure. It's the stepper that makes NM level chips which can be used in smart phones, tablets and other electronic devices. Without that tiny thing, the world wouldn't work anymore. When we see a hair, we usually think that it's really thin. In fact, you can put over 200 hundred components in a chip which is as large as a tiny hair. A stepper is the machine that can produce the chips. Only one company in the world can make the chips under 7 NM. I really am in awe of the guy who invented this kind of machine. We always look up to deep space and send rockets to the Moon, even to Mars. When we look down at the tiny world and carefully observe it, it's also wonderful.

Throughout the whole history of Mankind, there were some great inventions that deeply accelerated history, such as paper, electricity, computers, etc... Among them, one invention is really hard to create due to its complex structure. It's the stepper that etches chips with a nanometer (nm) precision and these chips are used in smart phones, tablets and other electronic devices. Without that tiny thing, the world won't work anymore. When we see a hair, we usually think that it's really thin. In fact, you can put over two hundred components in a chip which is as large as a tiny hair. A stepper is the machine that can produce the chips. Only one company in the world can etch these chips under 7 nm. I really can’t imagine who was the guy who invented this kind of machines. We always look up towards the deep space and send rocket to the Moon, even to Mars. When we look down the tiny world and carefully observe it, it's also wonderful.