US chip equipment maker Lam Research could lose as much as $2 billion to $2.5 billion in revenue for the calendar year 2023 due to new US export restrictions, according to Tim Archer, president and CEO of the firm, who made the comments during an Oct. 19 earnings call. After the US’s new restrictions on exports to China – including chipmaking equipment for 14-16nm logic chips, 128-layer storage chips, and 18nm memory chips – Lam Research confirmed that it had “taken the necessary steps to ensure full compliance with the rules and have ceased shipments and support as required.” In the third quarter of this year, Lam Research generated 30% of its revenue from mainland China, making it the largest single market for the firm. [Lam Research]