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Micron makes memory chips and storage chips that go into computers, phones, cars, and data centers.
Micron Technology is one of the world's largest makers of memory chips — the parts inside devices that hold data. It sells two main kinds of products: DRAM, the fast working memory a computer uses while it is running programs, and NAND flash, the storage that keeps your photos and files even when the power is off. Almost every big tech product needs at least some of this, so Micron's customers include makers of smartphones, laptops, cars, and the giant data centers that run artificial intelligence.
The business is simple in concept and brutal in practice. Micron designs and manufactures chips in its own factories, called fabs, and sells them to device makers and data center operators. Building a fab costs billions of dollars and takes years, so when demand is hot, prices spike and Micron makes enormous profits; when demand falls or too many chips flood the market, prices collapse and the company can lose money. This boom-and-bust cycle has defined the memory industry for decades. Micron's edge comes from producing chips efficiently at huge scale and staying near the front of the technology race, especially in high-bandwidth memory, a premium type of DRAM that AI chips need to feed data fast. That AI angle is the big recent story. High-bandwidth memory, or HBM, is stacked DRAM that sits right next to the processor in AI accelerators, and demand for it has exploded. Micron has bet heavily on HBM and says it is sold out for the foreseeable future, which has turned it into a key supplier in the AI boom. Its main competitors are Samsung and SK Hynix, both South Korean giants. Because memory chips are largely interchangeable, the competition is fierce and prices are set by the market, not by Micron — a major vulnerability. The U.S. government has also treated Micron as strategically important, handing it major grants under the CHIPS Act to build factories on American soil, partly to reduce reliance on Asian chip supply.
In 1978, four men started a chip design shop in the basement of a Boise dental office. Their whole business rested on one customer, and when that customer got bought, the founders faced a choice: close up or learn to build chips themselves. They chose to build, and a local potato magnate named J.R. Simplot wrote the first big check that paid for a factory and kept them alive.
A few years later, Micron shipped its first memory chip, the 64K DRAM, and stopped being just a design shop. That chip ended up inside early home computers like the Commodore 64, which put Micron's work in living rooms.
In 1984, the company sold shares to the public and began trading on Nasdaq, giving it money to grow and a new set of outside owners to answer to.
Soon after, cheap Japanese memory chips poured into America and threatened to bury Micron. Simplot personally pushed President Reagan for help, and the effort paid off with a trade agreement that punished Japan for dumping chips below fair value. It was a lesson Micron would never forget: in memory, survival often depends on politics as much as engineering.
In 1998, Micron bought Texas Instruments' memory business, picking up factories and operations in Italy, Texas, Singapore, and Japan. The deal widened its global reach and customer base in one stroke.
In early 2012, CEO Steve Appleton died in a plane crash in Boise, and Mark Durcan took over. The loss shook the company, but the business kept moving.
A year later, Micron bought Elpida, a bankrupt Japanese memory maker, for roughly two and a half billion dollars. The purchase instantly added about half again to Micron's DRAM capacity and lifted it to the number two spot worldwide, behind Samsung.
In 2017, Sanjay Mehrotra, who had co-founded SanDisk, became CEO. He pushed Micron upmarket into data center drives, mobile memory, and high-bandwidth memory, aiming for products where price matters less.
Then came 2023, when the memory market crashed. Micron lost more than five billion dollars, the CEO called it the industry's worst slump in thirteen years, and revenue was cut roughly in half.
The story flipped when Nvidia's Jensen Huang nudged Micron into the AI boom, aligning their roadmaps and turning memory from a cheap commodity into specialized high-bandwidth memory. The stock surged about ten-fold in a year, and in 2026 Micron crossed a trillion-dollar market value, going from a five-billion-dollar loss to a fourteen-billion-dollar quarterly profit.
The money follows the cycle. In good years Micron throws off enormous cash, which it spends on new fabs, advanced equipment, and research, plus buying back shares and paying a small dividend. In bad years those same factories become a heavy burden. It's a capital-hungry, high-stakes business: Micron doesn't sell a brand you'd recognize on a shelf — it sells the invisible memory that makes modern electronics work, and it lives or dies by getting the timing of that giant cycle right.
Saved answer · last researched 19 Oct 2026