Samsung, SK Hynix test Chinese chip tools as hedge against US risks

Samsung Electronics and SK Hynix are evaluating chipmaking equipment from China’s Advanced Micro-Fabrication Equipment (AMEC) for possible use at their Chinese factories, three people familiar with the matter said, as the South Korean firms hedge against the risk of tighter U.S. export controls.

The memory chipmakers began testing AMEC etching equipment about two years ago, when ​uncertainty was mounting over whether Washington would continue allowing them to import U.S. chipmaking tools into China, two of the sources said.