Japan tightens exports of chip gear

Broad curbs affect 23 types of equipment needed to make leading-edge computer chips

Japan said it will expand restrictions on exports of 23 types of leading-edge chipmaking technology, as the US ratchets up efforts to limit China’s access to key semiconductor knowhow.

About ten Japanese companies, including leading gearmaker Tokyo Electron Ltd, would need to get licences to ship a broader-than-expected array of equipment used to transform silicon into chips, spanning cleaning, deposition, annealing, lithography, etching and testing.

Tokyo’s move follows months of lobbying by the US to get Japan to join it in tightening shipments of semiconductor tools to China. Japan and the Netherlands had agreed in principle to join the US, but have sought to chart a middle road between the two superpowers.

Japan Trade Minister Yasutoshi Nishimura said the move was not in coordination with the US and was not a ban.

“These export controls apply to all regions and are not meant to target any one country,” he told reporters yesterday. “We will be looking at whether there is any danger of military appropriation.”

However, countries that are categorised as Japan’s most-favoured trading partners will be able to continue importing without a licence, trade ministry officials said. Those nations include Taiwan and Singapore, key participants in the global semiconductor supply chain. Shipments of restricted equipment to China would require sign-offs by export control officials.

With the help of the Netherlands and Japan, the US is seeking to create a global blockade to prevent China from getting key equipment now essential to make the most advanced chips used in quantum computing, advanced wireless networks and artificial intelligence.

Much hinges on how Japan implements the controls. If Japan refuses to approve any, that could be a blow both for the country’s semiconductor equipment manufacturers as well as for China, Morningstar analyst Kazunori Ito said.

Chip-related stocks fell on the news, with Tokyo Electron reversing gains to trade down around 1.5%, while Screen Holdings Co also fell. Nikon Corp, Lasertec Corp, and Advantest Corp all pared gains.

Tokyo’s measures — which will be subject to public comment before implementation slated for July — affect a wide range of equipment, similar to the US curbs in scope. Etching machines that are capable of making 14- and 16-nanometre and more advanced chips would be affected, for instance.

“If our exports are not being re-appropriated for military use, we will continue shipments,” Nishimura told reporters. “We believe the impact on companies will be limited.”

The US, Netherlands and Japan together control critical equipment now necessary for China to make leading-edge chips.

The US has banned American gear suppliers Applied Materials Inc, Lam Research Corp, and KLA Corp from shipping some of their most advanced technology to China.

Japan’s Tokyo Electron and the Netherlands’s ASML Holding NV are the two other critical suppliers that the US needs to contain China’s technological ascent.

Japan’s planned export controls include tools used to clean silicon wafers of impurities, extreme ultraviolet mask-testers, as well as immersion lithography machines. Screen Holdings, Lasertec and Nikon are suppliers of such equipment.

Over the long term, China will be forced to develop its own chipmaking machines, said Toyo Securities analyst Hideki Yasuda. “A complete decoupling of standards in chips would make it difficult for China to produce semiconductors at low cost.”

Beijing has said such restrictions threaten the stability of the global supply chain and that national-security justifications are dubious.