Tue, Mar 07, 2023 page11

• China’s chip sector needs more than state funding

  US PRESSURE: The country needs to rethink how it can innovate in the chip sector, rather than continuing to emulate existing tech from abroad, industry experts said

  • Reuters, SHANGHAI
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  China plans to splurge to help its chip sector overcome US export curbs, but money can only do so much unless Chinese firms can break from a cycle that hinders innovation and traps them at the low end of the value chain, industry players said.

  The Chinese government has earmarked US$140 billion that could include subsidizing the purchase of domestically produced chipmaking equipment, likely benefiting manufacturers such as China’s sole semiconductor lithography specialist, Shanghai Micro Electronics Equipment Group (SMEE, 上海微電子).

  The outlay was in response to the US tightening export restrictions of chipmaking technology for fear it could be used to produce chips for applications such as artificial intelligence, which could be used by the Chinese military.

  

  An employee works on the production line of a semiconductor chip company in Suqian, Jiangsu Province, China, on Tuesday last week.

  Photo: REUTERS

  However, money alone is not enough to catch Western rivals who are generations ahead. SMEE and local peers mainly sell to domestic chip foundries, and the lack of exposure to advanced chipmaking facilities of the likes of Taiwan Semiconductor Manufacturing Co (台積電) and South Korea’s Samsung Electronics Co has made it difficult for them to independently solve engineering problems and move up the value chain, industry workers and market watchers said.

  “This prevents whatever advances they make in R&D [research and development] from getting into mass production, and also limits them from learning more tricks of the trade,” said Mark Li, who tracks China’s chip sector at Bernstein Research.

  Just as in the aviation industry, chipmaking equipment manufacturers work closely with clients, offering long-term services including installation, calibration, maintenance and repair of machines that can cost more than US$100 million each.

  This collaboration can result in a substantial sharing of know-how that helps both sides advance technologically.

  People who worked at SMEE and other Chinese firms in areas such as etching told Reuters how barriers to entry did not seem too high until supply chains became even more global, the engineering more complicated and the market cornered by firms such as Dutch lithography giant ASML Holding NV.

  Top management at SMEE — led by a state power firm executive who launched the company in 2002 — had no lithography experience, and staff built their first machines by buying and studying second-hand equipment and by reading public patents and papers, one former SMEE engineer said.

  The firm advanced enough to produce a machine that could print circuit patterns as tiny as 90 nanometers on silicon wafers — two decades behind ASML.

  Nonetheless, it was hailed as a domestic breakthrough, and in 2018 it won a local government award.

  SMEE has not made any major advancements since, in part due to difficulties in procuring equipment from abroad, an engineer said.

  “Even if we could have built the machines, we wouldn’t have known how to service and maintain them,” the engineer said.

  Another former top employee at a Chinese chipmaking equipment manufacturer recounted how while working to master the etching procedure for 3D NAND flash, the company could not perfect a critical element, namely the channel hole, or hole size.

  “We knew what it takes to do that, but we were limited by the equipment’s design capability. Our US rival had already solved that,” the employee said.

  Some people in the industry have urged a complete rethink in the way China can catch up by focusing on what the next era of chipmaking could look like rather than compete with overseas peers in trying to make circuits on chips denser and denser.

  Late last month, two senior academics from the Chinese Academy of Science published an article advocating a refocus on research and development for new technology and materials, rather than on emulating existing technology from overseas.

  Meanwhile, Chinese chip firms have become even more isolated since the US imposed restrictions in October last year that barred US companies such as Lam Research Corp and Applied Materials Inc from supplying equipment that can produce relatively advanced chips without a license.

  The situation could be worsened for Chinese companies should Japan and the Netherlands agree to also restrict exports of chipmaking equipment to China.

  “When the sanctions came out, all the American companies followed,” an engineer at a Chinese memory chipmaker said.

  “When we bought our equipment, we used to get customer service. Now we can’t even get that because of the sanctions,” they said.
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