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399nm wafers dominates memory production in 2020
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Friday, February 26, 2021
It is not surprising that the 300mm ranking includes only DRAM and NAND flash memory suppliers like Samsung, Micron, SK Hynix, and Kioxia/WD; four of the world’s largest pure-play foundries TSMC, GlobalFoundries, UMC, and Powerchip (including Nexchip); and Intel, the industry’s biggest manufacturer of microprocessors.
TSMC has the largest capacity in the main wafer sizes, with Intel No.6 in 12 inch and ST No.2 in 8 inch and No.5 in the =150mm category, reports IC Insights in its Global Wafer Capacity 2021-2025 report. Infineon is No.4 in eight inch.
As of December 2020, only TSMC—the world’s largest foundry—was listed among the wafer capacity leaders in each of the three wafer size categories. It had the most 200mm wafer capacity last year and ranked second, trailing only Samsung, in 300mm wafer capacity.
These companies offer the types of ICs that benefit most from using the largest wafer size available to best amortize the manufacturing cost per die. Moreover, they have the means to continue investing large sums of money in new and improved 300mm fab capacity.
Wafer capacity leaders in the 200mm size category consist of pure-play foundries and manufacturers that emphasize analog/mixed-signal ICs and microcontrollers.
The ranking for the smaller wafer sizes (i.e., =150mm) includes a more diversified group of companies, with two Chinese companies at the top. China Resources Microelectronics (CR Micro) and Silan Microelectronics both have very large 150mm fabs used mainly for the production of analog/mixed-signal ICs, power devices, and discrete semiconductors.
STMicroelectronics used to have a huge amount of 150mm wafer capacity for production of ICs at its fab site in Singapore but the company restructured its fab operations there in recent years. One fab was largely converted to manufacture MEMS-based microfluidic products (e.g., inkjet heads, lab-on-chip devices, etc.) and other fabs were upgraded to process 200mm wafers.
As the industry has moved IC fabrication onto larger wafers in bigger fabs, the number of IC manufacturers has continued to shrink.
The Global Wafer Capacity study shows that as of December 2020, there were 63 companies that owned and operated a 200mm wafer fab.
There were 28 companies that owned and operated a 300mm wafer fab. Furthermore, the distribution of 300mm wafer capacity among those manufacturers is top-heavy with the five biggest manufacturers controlling about three-quarters (74%) of the global 300mm IC capacity.
By: DocMemory
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