MICRON TECHNOLOGY, INC. Exhibit 21.1 Subsidiaries of the Registrant State (or jurisdiction) Percentage in which Ownership Name Incorporated by Registrant - - ------------------------------------------ ----------------------- ------------- Micron Semiconductor, Inc. Idaho 100% Micron Custom Manufacturing Services, Inc. Idaho 86% Micron Computer, Inc. Idaho 77% Micron Communications, Inc. Idaho 87% Micron Construction, Inc. Idaho 86% Micron Construction of New Mexico, Inc. New Mexico 86% Micron Display Technology, Inc. Idaho 90% Micron Europe Limited United Kingdom 100% Micron Investments, Inc. Idaho 95% Micron Overseas Trading, Inc. Virgin Islands 100% Micron Quantum Devices, Inc. California 89% Micromate, Inc. Washington 100% Micron Sales Northwest, Inc. Oregon 100% Micron Semiconductor Asia Pacific Pte. Ltd. Singapore 100% Micron Semiconductor Asia Pacific Inc. Idaho 100% Micron Semiconductor (Deutschland) GmbH Germany 100% Micron Systems Integration, Inc. Idaho 90%