IBM announces a revolutionary 0.7nm chip: breakthrough or marketing?
IBM Corporation has unveiled a chip manufacturing technology with a transistor architecture of just 0.7 nanometers, equivalent to 7 angstroms. This announcement, made as part of their latest research report, marks another step in the race to miniaturize semiconductor components.
The key innovation is the so-called "nanostack" — an approach where transistors are not placed in a single plane, as in traditional planar structures, but vertically, in multiple layers. This three-dimensional arrangement fundamentally changes the physics of device operation, allowing it to overcome the limitations faced by modern lithographic processes.
According to IBM estimates, this method will allow placing about 100 billion transistors on a chip the size of a fingernail. For comparison, this is several times higher than the density of current 3nm and 5nm solutions from TSMC and Samsung. Compared to the 2nm technology from 2021, the performance of the new chips is expected to increase by 50%, and energy efficiency by 70%. This means processors will be able to perform more operations with less heat generation, which is critical for data centers and mobile devices.
However, the commercial implementation of the technology is in its early stages. IBM predicts that mass production of such chips will begin no earlier than five years from now. This is due to the need to adapt production lines and solve fundamental problems, such as quantum effects and current leakage at such small distances.
Cryptalist Analytics: IBM's announcement is more of a demonstration of scientific potential than a market-ready product. The path to 0.7nm faces enormous engineering challenges, including equipment costs (high-aperture EUV lithography) and reliability issues. If IBM manages to scale the technology, it could revolutionize the market, but for now, the leaders — TSMC and Samsung — are working on 2nm and 1.4nm processes. We will not see a real breakthrough before 2028-2029, and it will require not only the nanostack but also new materials, such as graphene or transition metal dichalcogenides.