IBM has revealed the world's first 2 nanometer (nm) chip technology which can fit up to 50 billion transistors in an area the size of a fingernail, an advance the company claims can lead to "quadrupling cell phone battery life." According to the computing giant, the new breakthrough chip, revealed as a proof-of-concept on Thursday, can improve performance by 45 per cent over current 7nm semiconductors that are used in commercially available products. The company believes this will help meet the demands for increased chip performance and energy efficiency in the era of AI, and the Internet of Things. While initially, the computer chip industry used nanometres – hundreds of times thinner than a single human hair – to measure the physical size of transistors, the nm number has also found its use widely to describe new generations of the technology. Built on IBM's nanosheet technology, the current advance reportedly allows the company to fit up to 50 billion transistors on a chip the size of a fingernail, giving processor builders more space and options to infuse components for workloads like AI and cloud computing.