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Applied Materials : Battle of Exponentials — A Different Way to Think About Accelerating Semiconductor Growth

01/14/2022 | 11:12am

Recent increases in semiconductor growth may be explained by an ongoing battle between two exponentials: 1) the upward-sloping growth of data generation, which drives semiconductor unit demand, and 2) the downward sloping reduction in transistor costs driven by classic 2D Moore's Law scaling, which drives ASP reductions.

Data have continued to grow exponentially, stimulating unit demand. But in recent years, the pace of transistor cost declines has moderated. This helps explain why semiconductor revenue growth has accelerated, as shown in the chart below.

A third exponential is network effects (more about these in a moment), which are also compounding and putting upward pressure on semiconductor demand.

For chipmakers, this battle of exponentials bodes well for revenue growth, profitability and the ability to invest for the future. It can also serve as a catalyst for new methods beyond classic Moore's Law scaling that can deliver the cost reductions in computation needed to make it affordable to extract value as data multiply.

Data Exponential Amplified by AI

We estimate machine-generated data first exceeded human-generated data in 2018. Our proprietary data model suggests that by around 2025, machines will generate 99 percent of data created, fueled by a confluence of emerging applications including AI, the Internet of Things (IoT), blockchain, the metaverse and Web 3.0. Arguably still in their infancy, these applications create new, virtuous cycles, with increasing data generation requiring commensurate increases in data processing.

Just as machines are generating more data than humans, they are also making more decisions. AI turns data into commercial insights, and it is being deployed at scale, including for applications that were previously considered too complex or specialized to be automated.

Rise of Network Effect Technologies

Blockchain, social media and gaming exemplify applications that increase in value in accordance with Metcalfe's Law, i.e., proportionate to the square of the number of participants. Human brains are wired to think in linear terms and often struggle to comprehend exponential effects in advance of them playing out. The premium valuations now accorded to social media companies, gaming companies and the Bitcoin network are recognition that the financial markets are catching on to the power and value of network effects.

Beyond Classic 2D Scaling

When Moore's Law was functioning like clockwork (through around 20151), each new generation of advanced fab technology simultaneously enabled a doubling of transistors per chip, greater functionality, higher performance and lower cost. Affordable transistors fueled growth for the electronics industry, and investments and profits were concentrated in technologies aimed at further classic 2D scaling. Specialty nodes for markets Applied Materials calls ICAPS (IoT, Communications, Automotive, Power and Sensors) did not receive a lot of attention or investment dollars. However, over the past 18 months of IC shortages, the world has become acutely aware of the importance of a wide range of semiconductors that rely far less on shrinking to deliver value. The industry is changing, with demand and investments for semiconductor manufacturing becoming more evenly distributed between leading nodes and ICAPS nodes.

In my next blog post, I'll share additional data about semiconductor growth-and explain additional ways to interpret the growth using the "battle of exponentials" framework.

1 Computer Architecture: A Quantitative Approach, Sixth Edition, John Hennessy and David Patterson, December 2017


Applied Materials Inc. published this content on 14 January 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 14 January 2022 16:11:00 UTC.

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