据知情人士透露，美国政府已要求多家半导体设备制造商暂停向中国第二大芯片制造商华虹公司（Hua Hong Grace Semiconductor Limited）的两座生产设施供应设备。
这一举措标志着美国进一步收紧对中国半导体产业的出口管制。受影响的企业包括应用材料（Applied Materials）、科磊（KLA-Tencor）和拉姆研究（Lam Research）等知名设备供应商。
此次限制涉及华虹公司位于上海的两座关键晶圆厂。作为中国领先的芯片制造企业，华虹公司主要生产用于汽车、工业控制等领域的特色工艺半导体。
行业观察人士指出，此举可能影响华虹公司的产能扩张计划。当前全球芯片供应链本就紧张，新的出口限制恐将加剧半导体设备市场的波动。
美国商务部尚未对此事发表正式评论。芯片设备厂商们正评估这一指令对其业务的具体影响，同时寻求与监管机构进行进一步沟通。
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