Revenue per Wafer Climbs As Demand Surges for 5nm/7nm IC Processes

The success and proliferation of integrated circuits has largely hinged on the ability of IC manufacturers to continue offering more performance and functionality for the money.  Driving down the cost of ICs (on a per-function or per-performance basis) is inescapably tied to a growing arsenal of technologies and wafer-fab manufacturing disciplines as mainstream CMOS processes reach their theoretical, practical, and economic limits.

Data presented in IC Insights’ 2021 edition of The McClean Report (released in January 2021), notes that many fabless IC companies are clamoring to have their leading-edge devices, including high-performance microprocessors, low-power application processors, and other advanced logic devices, fabricated using 7nm and 5nm process nodes. Some of the current iterations from logic and foundry suppliers are shown in Figure 1.

In the foundry world, particularly, manufacturing with leading-edge processes carries a distinct advantage. In 2020, TSMC was the only pure-play foundry manufacturing ICs using both 7nm and 5nm process nodes.  Not coincidentally, its overall revenue per wafer increased significantly in 2020 as many of the top fabless IC suppliers—16 fabless IC companies with more than $1.0 billion in 2020 revenue—lined up to have their newest designs manufactured using these most advanced processes.  Three of the four pure-play foundries enjoyed higher revenue-per-wafer in 2020 (GlobalFoundries’ revenue per wafer slipped 1% last year). TSMC’s figure of $1,634 exceeded GlobalFoundries by 66% and was more than double the revenue per wafer value at UMC and SMIC. With estimated capital expenditures of $27.5 billion in 2021, TSMC will expand its available capacity at these nodes and also begin risk production of 3nm ICs this year with 3nm volume production slated to start in 2022.

Besides foundry and logic IC manufacturing, memory suppliers like Samsung, Micron, SK Hynix, and Kioxia/WD are using advanced processes to make their DRAM and flash memory components.  No matter the device type, the IC industry has evolved to the point where only a very small group of companies can develop leading-edge process technologies and fabricate leading edge ICs.  Growing design and manufacturing challenges and costs have divided the integrated circuit world into the haves and have-nots. Marketshare makeup in various IC product segments has become “top heavy,” with increasing shares held by the top producers, leaving very little room for remaining competitors.

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