SK Hynix said on Wednesday that it will be spending 4.75 trillion won (around US$4.3 billion) up to December 1, 2025 to procure extreme ultraviolet (EUV) lithography equipment.
The South Korean chip giant will be purchasing them from ASML of the Netherlands.
The amount is equal to 7.34% of its total assets.
SK Hynix said it was its estimate for purchasing and installing the kits. It will pay per equipment over the next five years, the company said.
EUV equipment is estimated to cost around 150 billion won to 170 billion won per unit. SK Hynix will likely purchase less than 20 units of them over the time period.
The company had upgraded its two existing EUV equipment for research for commercial production. These have been applied to its M16 fab, which completed construction on February 1, to apply EUV lithography in the production of Gen 4 10-nanomter (1a) DRAM, starting in the second half of 2021.
Compatriot Samsung Electronics begun applying EUV last year for the production of Gen 3 1z DRAM.