The world's most important chipmaking equipment supplier wants to raise its prices, and its biggest customer isn't happy about it.

ASML, the Dutch company that holds a near-monopoly on the machines used to print the tiniest features on advanced computer chips, is looking to increase prices on its equipment. According to Tom's Hardware, ASML wants to raise prices on its Low-NA EUV tools beyond the "productivity-based" model it has used until now. In plain terms, ASML has historically priced its machines largely on how many silicon wafers they can process per hour. Now the company reportedly wants to "capture the value of all the advantages its tools offer, not just wafer throughput improvements."

Tom's Hardware notes that ASML is still expected to keep its broader value-based approach to setting prices. The push isn't limited to the cutting-edge EUV machines either — reporting aggregated by finance.biggo.com describes ASML pursuing price hikes on both its EUV and older DUV equipment.

TSMC, the Taiwanese giant that manufactures chips for companies like Apple and Nvidia and is one of ASML's largest buyers, is pushing back. According to Tom's Hardware, TSMC is "reportedly unhappy about the potential plan," and finance.biggo.com frames the chipmaker as pushing back "hard."

The standoff is essentially a negotiation between two of the most powerful players in the semiconductor supply chain. ASML makes machines that no rival can replicate at the leading edge, which gives it enormous pricing leverage. But TSMC buys those machines in bulk and has leverage of its own as an anchor customer.

Why it matters: the cost of chipmaking equipment eventually flows downstream into the price of the processors inside phones, laptops, cars, and AI data centers — so a pricing fight between ASML and TSMC could ripple across the entire tech economy.