The company said the DRAM and NAND markets also recovered after a poor 2019, growing 4% and 32.9% respectively.
Semiconductor revenue is forecast to reach US$476 billion in the current year, a growth rate of 7.7% year-on-year as vaccination campaigns begin around the globe and economies recover.
"The nature of the recovery will depend upon how quickly government stimulus plans stabilise the global macroeconomy and consumer confidence improves as vaccinations roll out around the world," said Mario Morales, program vice-president, Enabling Technologies and Semiconductors at IDC.
"The first half will also see some inventory digestion in the enterprise, cloud, and telco equipment market, but we do not expect it to derail the growth for the year. Semiconductor technology remains critical across every industry on our journey to a sustainable recovery."
IDC said the market for semiconductors in PCs and servers in 2020 fared better that the overall market, growing 10.9% year-on-year to US$152 billion.
"Measures to control the COVID-19 infection forced workers and students to stay at home, which forced corporations and consumers alike to acquire PCs," said Shane Rau, research vice-president, Computing Semiconductors.
"Further, the dispersal of workers and students away from centralised locations forced cloud service providers, telecommunications providers, and corporate IT departments to invest in their computing infrastructure."
The second demand driver for semiconductors was the smartphone market, especially the growth in 5G phones; IDC forecast that this segment of the semiconductor market would grow to US$128 billion this year, a rise of 11.4% year-on-year.
"Mobile phone shipments fell by more than 5% in 2020, but mobile phone semiconductor revenues would have grown by about 3% due to a shift to higher ASP 5G semiconductors, more memory, sensors, and RF support for more spectrum bands," said Phil Solis, research director for Connectivity and Smartphone Semiconductors.
"[The year] 2021 will be an especially important year for semiconductor vendors as 5G phones capture 30% of all mobile phone shipments while semiconductors for 5G phones will capture nearly 54% of the revenue in the segment.”