Samsung Electronics' semiconductor etching process recipe was leaked to the Korean branch of American semiconductor equipment company Fanlin. Fanlin supplies etching and deposition equipment for Samsung Electronics' production lines. Originally, it was only possible to obtain production line monitoring data for equipment maintenance and performance optimization within the scope agreed by the parties; after verification, Fanlin passed improper requests and repeatedly obtained independent process recipe documents transmitted to the outside world without permission from Samsung Electronics. Samsung Electronics discovered the incident in the second half of this year. The headquarters level characterized the incident as a major technology leak and dealt with it seriously.

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