[7] Startup funding was provided by local Idaho businessmen Tom Nicholson, Allen Noble, Rudolph Nelson, and Ron Yanke.

In 1981, the company moved from consulting to manufacturing with the completion of its first wafer fabrication unit ("Fab 1"), producing 64K DRAM chips.

[8] Micron sought to enter the market for RISC processors in 1991 with a product known as FRISC, targeting embedded control and signal processing applications.

Running at 80 MHz and described as "a 64-bit processor with fast context-switching time and high floating-point performance", the design supported various features for timely interrupt handling and featured an arithmetic unit capable of handling both integer and floating-point calculations with a claimed throughput of 80 MFLOPS for double-precision arithmetic.

[9] Having set up a subsidiary and with the product being designed into graphics cards and accelerators, Micron concluded in 1992 that the effort would not deliver the "best bang for the buck", reassigning engineers to other projects and discontinuing the endeavour.

In 2000 Gurtej Singh Sandhu and Trung T. Doan at Micron initiated the development of atomic layer deposition high-k films for DRAM memory devices.

[14] Micron and Intel created a joint venture in 2005, based in IM Flash Technologies in Lehi, Utah.

[39][40] In June 2017 Micron announced it was discontinuing the Lexar retail removable media storage business and putting some or all it up for sale.

[41] In August of that year the Lexar brand was acquired by Longsys, a flash memory company based in Shenzhen, China.

The jury found that Micron's semiconductor-memory products violated two of Netlist's patents willfully, potentially allowing the judge to triple the damages.

[53] On 5 December 2017 Micron sued rivals United Microelectronics Corporation and Fujian Jinhua Integrated Circuit Co. (JHICC) in the United States District Court for the Northern District of California, alleging infringement on its DRAM patents and intellectual property rights.

[54] The U.S. Justice Department in 2018 announced an indictment against Fujian Jinhua, and authorities added the Chinese firm to the Entity List the same year.

[57][56] In November 2023 Chinese chipmaker Yangtze Memory Technologies Corp (YMTC) filed a lawsuit against Micron alleging infringement of eight of its patents.