Major US memory and storage chipmaker producing DRAM, NAND, and HBM for AI data centers, PCs, and mobile devices. ~$25B annual revenue company ramping HBM3E production to capture surging AI demand alongside SK Hynix and Samsung. Positioned as the only US-based memory manufacturer with growing data center revenue driven by AI server deployments.
Company Profile
America's only memory chipmaker — racing to catch up in the AI memory gold rush.
Key Products & Platforms
HBM3E
High Bandwidth MemoryRamping production, supplying NVIDIA
DDR5
Server DRAMHigh-performance data center memory
CXL Memory
Next-Gen InterconnectMemory expansion for AI servers
Data Center SSDs
StorageEnterprise NVMe solid-state drives
Key Customers
Competitive Position
Market Share
~20% of HBM market (growing), ~25% of total DRAM
Competitive Moat
Only U.S.-based memory manufacturer; strong technology roadmap; CHIPS Act funding
Key Risk
Late entrant to HBM; smaller scale than SK Hynix and Samsung; memory market volatility
Why This Company Matters
Micron is the only American company making DRAM and HBM. With geopolitical tensions around Asian supply chains, Micron is the U.S. government's bet on domestic memory manufacturing. Their HBM ramp is critical for American AI supply chain independence.
Key Milestones
Founded October in Boise, Idaho by Joe and Ward Parkinson, Doug Pitman and Dennis Wilson, initially as a four-person semiconductor design consultancy in a basement before pivoting to DRAM manufacturing.
Built first wafer fab in Boise, Idaho funded by potato magnate J.R. Simplot; introduced Micron 16Kb DRAM, the smallest die area of any 16Kb DRAM at the time.
IPO on the NYSE; proceeds funded expansion of Boise Fab 2 and the company's transition from a four-person consultancy to a full DRAM manufacturer.
Filed antidumping petition against Japanese DRAM makers; resulting US-Japan Semiconductor Trade Agreement of 1986 saved the US DRAM industry from collapse.
Spun out Micron Electronics PC business as a separate public company; refocused parent on memory, the strategic decision that preserved Micron through DRAM cycles.
Acquired Lexar Media for M, gaining flash card brand and consumer NAND distribution; held Lexar through 2017 before selling to China-based Longsys.
Formed IM Flash Technologies JV with Intel to manufacture NAND in Lehi, Utah and 3D XPoint memory; ran for 13 years before Micron bought out Intel in 2018.
Closed .5B acquisition of bankrupt Elpida Memory July 31, gaining Hiroshima 300mm DRAM fab and 24% Rexchip Taiwan stake; vaulted into top-3 DRAM makers behind Samsung and SK Hynix.
Tsinghua Unigroup made B unsolicited bid for Micron, the largest-ever Chinese bid for a US tech company; rejected by Micron and ultimately blocked under CFIUS scrutiny.
Bought Intel out of IM Flash NAND JV for .5B; Intel exited NAND, leaving Micron and Samsung as the dominant non-Asian NAND players.
US DOJ indicted China-based Fujian Jinhua and Taiwan-based UMC for stealing Micron DRAM trade secrets; landmark case against Chinese semiconductor IP theft.
Began ramping 1Y nm DRAM, Micron’s first node to lead Samsung in density per cell; foundation of HBM3e leadership three years later.
Announced B Clay, NY mega-fab over 20 years, the largest semi project in US history; first phase B targets HBM/DRAM production starting 2026-27.
China's Cyberspace Administration banned Micron from key infrastructure projects after a cybersecurity review, hitting ~10% of revenue; first major retaliation against US chip controls under Xi Jinping.
Began HBM3e mass production for NVIDIA H200 with 24GB 8-high stacks, leapfrogging into HBM leadership tier; first US-based HBM supplier and Micron's largest single revenue catalyst since 2018.
Awarded preliminary $6.1B CHIPS Act funding for Clay, NY mega-fab and Boise, ID expansion of HBM/DRAM capacity; total Micron US commitment ~$125B over the decade.
Finalized $6.165B CHIPS Act funding December 10 for Clay, NY HBM mega-fab and Boise expansion; first US-based HBM/DRAM mega-fabs in 25 years.
December 2 BIS update barred HBM3/3e exports to China, formalizing the cutoff already in effect from China's Micron ban; minimal incremental revenue impact for Micron specifically.
Began 12-stack HBM3e mass production at 36GB, securing additional NVIDIA H200/B300 supply allocations; HBM share grew to ~22% from <5% in 2023.
Sampled HBM4 to NVIDIA and AMD, targeting Rubin and MI400 ramps in calendar 2026; projected ~18% HBM4 share, up from 22% HBM3e share in 2025.