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Micron Technology
The company that makes HBM, the part that goes inside the CoWoS package

Micron designs DRAM and NAND and builds them in its own fabs. It is the only pure-play memory maker headquartered in the United States. It appears so often in back-end coverage because it is one of the few suppliers of HBM, the high bandwidth memory that goes into every AI package. Micron is not the company assembling the package; it is the company whose part goes inside it. This profile sets out that distinction using only the figures in the company's filings with the U.S. SEC.

Sources: Micron's filings with the U.S. SEC (FY2025 Form 10-K, the Form 10-Q for the third quarter of FY2026, and the quarterly earnings release attached to a Form 8-K) together with the official website, used as primary material. Last updated September 2026.

What this article covers
  1. Micron in 30 seconds
  2. The logo and how the name is written
  3. What the company actually does: the IDM model
  4. Scale: five years of revenue
  5. Company category and position in the back-end industry
  6. Sites and the countries where it manufactures
  7. Leading products and share in semiconductor back-end work
  8. Current investment plans
  9. Major corporate partners
  10. Where the company is heading in this field
  11. The risks this company carries
  12. Glossary, references and claim-to-source audit

1. Micron in 30 seconds

LEGAL NAMEMicron Technology, Inc.A Delaware corporation
HEADQUARTERSUnited StatesBoise, Idaho (8000 South Federal Way, Boise, Idaho 83716)
FOUNDED1978Started as a four-person design firm in the basement of a Boise dental office, per the official site
LISTINGNasdaq
Global Select Market, MU
Common stock with a par value of US$0.10 per share
FY2025 REVENUEUS$37,378mUp 48.9% year on year. The fiscal year ran from 30 August 2024 to 28 August 2025
EMPLOYEESAbout 53,000As of 28 August 2025, chiefly in Asia, North America and Europe
CATEGORYManufacturer
(IDM, vertically integrated)
Design, front end and back end are all held in house
FY2026 CAPEX PLANAbout US$27bnNet of government incentives received, on the company's own projection
The one thing to grasp first

Micron is not a back-end contractor. It does not assemble anyone else's chips; it stacks its own DRAM into a product called HBM and sells that to its customers. In other words, this is the company that makes the part that goes inside a package such as CoWoS. When Micron's name comes up in a back-end context, the question on the table is not who assembles the package but who can supply the HBM that goes into it, and reading it that way keeps the relationships straight.

2. The logo and how the name is written

The Micron logo and the names Micron and Crucial are registered trademarks of the company, as stated in the 10-K.

A note on naming: Micron Memory Japan is a separate legal entity, the successor to Elpida Memory, and the Hiroshima fab belongs to it. When a news report refers to "Micron Hiroshima", it is usually describing the Japanese entity rather than the U.S. parent, which is worth keeping in mind.

Official site: https://www.micron.com/about/our-company

3. What the company actually does: the IDM model

Sorted by business model, Micron is an IDM, an integrated device manufacturer. It designs in house, builds in its own wafer fabs, finishes in its own assembly and test sites, and sells under its own brand. It does place work with foundries and OSATs, but only as a supplement Sourced.

ProductWhat it isFY2025 revenue
DRAMFast memory that loses its contents when power is cut. Includes HBM, DDR5, LPDDR and GDDRUS$28.58bn
NANDStorage that keeps its contents without power, used in SSDs and smartphone storageUS$8.50bn
NOR and otherSmall non-volatile memory holding boot code and similarThe remainder, about US$0.3bn

The DRAM and NAND figures are stated in the body of the 10-K. NOR and other is the difference against total revenue of US$37,378m Our calculation.

In the fourth quarter of FY2025 the company reorganised itself into four business units defined by customer market Sourced. HBM sits inside CMBU.

CMBU
Cloud Memory Business Unit. Memory for the large cloud operators, and all HBM sold to data centre customers.
CDBU
Core Data Center Business Unit. Data centre memory for mid-sized clouds, enterprises and OEMs, plus data centre storage.
MCBU
Mobile and Client Business Unit. Smartphones and PCs.
AEBU
Automotive and Embedded Business Unit. Automotive, industrial and consumer equipment.
A materials engineer's view: HBM is a memory and a stacked package at the same time

In the company's own words, HBM is a three-dimensional stacked DRAM architecture connected by TSVs, through-silicon vias Sourced. It is therefore not a single die but a small stacked package, several DRAM dies piled up and wired vertically, and Micron performs that assembly at its own back-end sites. From the materials side, what matters here is wafer thinning, TSV fill, the bonding between dies (microbump or hybrid bonding), the underfill that closes the gaps in the stack, and the warpage and heat of the stack as a whole. When people say "HBM yield" they are not only talking about front-end defect density; a great deal of it is the yield of this stacking process. The 10-K says as much, noting that system-level products such as HBM carry higher manufacturing cost per unit and longer cycle times than discrete components Sourced.

4. Scale: five years of revenue

Micron annual revenue (US$ million) The fiscal year ends in late August or early September; FY2025 ran 30 August 2024 to 28 August 2025 40,000 30,000 20,000 10,000 0 27,705 Net income 5,861 30,758 Net income 8,687 15,540 Net loss 5,833 25,111 Net income 778 37,378 Net income 8,539 FY2021 FY2022 FY2023 FY2024 FY2025 FY2023 revenue halved on an inventory correction, for a US$5.8bn loss; memory is a volatile industry
Fig. 1 Micron annual revenue and net income, FY2021 to FY2025. Source: the Form 10-K for each year, retrieved through the SEC's XBRL company facts API. Revenue more than halved over two years and then recovered 2.4-fold, which says a great deal about the character of this company.
Fiscal yearRevenue (US$m)Operating income (US$m)Capital spending (US$m)R&D expense (US$m)
FY202127,7056,28310,0302,663
FY202230,7589,70212,0673,116
FY202315,540minus 5,7457,6763,114
FY202425,1111,3048,3863,430
FY202537,3789,77015,8573,798

Capital spending is the "expenditures for property, plant and equipment" line of the consolidated cash flow statement, before deducting government incentives received.

The sharp turn since FY2026 began

At the time of writing, September 2026, the annual report for FY2026, which ends in early September 2026, has not yet been filed. Figures through the third quarter have been, and what they show bears no resemblance to the steady picture in sections 1 to 5 Sourced.

MeasureQ3 FY2025Q2 FY2026Q3 FY2026
Revenue (US$m)9,30123,86041,456
Gross margin37.7%74.4%84.6%
Operating income (US$m)2,16916,13533,318
Net income (US$m)1,88513,78528,243

The third quarter of FY2026 ended on 28 May 2026. The company guides to fourth-quarter revenue of US$50bn plus or minus US$1bn at a gross margin of about 86% Not yet confirmed. Revenue for the first nine months was US$78,959m and capital spending was US$19,602m.

How to read those numbers, and this matters

A gross margin of 84.6% is an aberration for a manufacturer. The company attributes it to demand growth driven by advances in AI outrunning its own and the industry's ability to add supply Sourced. Prices are rising; production has not suddenly become cheap. Memory is an industry that has historically produced the opposite as well, collapsing prices and losses, and FY2023 in fact ended with a net loss of US$5.8bn. This article does not assume the margin persists Not yet confirmed.

5. Company category and position in the back-end industry

The category is manufacturer, specifically an IDM and a pure-play memory company. It is not an OSAT, not an equipment maker and not a materials maker. In the back-end supply chain it stands on the side that supplies the parts that go into the package being assembled.

FY2025 revenue by business unit (US$ million) HBM sits inside CMBU, but HBM revenue on its own is not disclosed CMBU (cloud) 13,524 (36.2%) MCBU (mobile and PC) 11,859 (31.7%) CDBU (core data centre) 7,229 (19.3%) AEBU (auto and embedded) 4,753 (12.7%) Other 13 (0.0%) CMBU revenue went from 3,792 in FY2024 to 13,524 in FY2025, a 3.6-fold rise in one year Shares are our calculation. On operating income CMBU is 6,129 of the company total of 9,770
Fig. 2 Revenue by business unit in FY2025. Source: Note 27 to the FY2025 Form 10-K. CMBU, which carries HBM, has become the largest business, but HBM revenue on its own is not disclosed Our calculation.

When Micron comes up in back-end coverage, the relationship actually at issue is this one.

Where HBM is made and where it enters the package Steps 1 and 2 happen inside Micron. Step 3 happens at another company 1. Micron DRAM wafer fabrication (front end) 2. Micron Stacked into HBM with TSV (Micron's own back end) 3. Foundry / OSAT HBM placed on CoWoS etc. (packaging step) What Micron supplies is a component, HBM: it is the part that gets mounted Another company controls yield at step 3; Micron controls stacking yield at step 2 Step 2 sites: Taiwan, Singapore, Malaysia, China and India (from the 10-K facility list)
Fig. 3 Where HBM is made and where it enters an AI chip package. The companies that perform step 3 are not named anywhere in Micron's filings Not yet confirmed.

6. Sites and the countries where it manufactures

The list of principal facilities in the 10-K sets out which process steps sit in which country Sourced. Notably, five countries carry assembly and test.

CountryWafer fabrication (front end)Assembly and test (back end)Notes
TaiwanYesYes, both component and moduleDRAM and HBM capacity is being modernised and expanded. The Tongluo fab was acquired from Powerchip for US$1.8bn in March 2026
SingaporeYesYes, both component and moduleConstruction of an advanced packaging plant for HBM began in January 2025. An additional wafer fab within the NAND campus broke ground in January 2026
United StatesYesNo, though reticle manufacturing is presentHeadquarters in Boise, Idaho. Fab projects are under way in Idaho, New York and Virginia
JapanYesNoThe Hiroshima fab is being modernised for future DRAM nodes and AI memory production
MalaysiaNoYes, both component and moduleA back-end only site
ChinaNoYes, both component and moduleA back-end only site
IndiaNoYes, both component and moduleThe assembly and test plant in Gujarat has begun commercial shipments, with volume production ramping in 2026

The process split is as stated in the 10-K as of 28 August 2025. Plant names, building counts and capacity by site are not disclosed Not yet confirmed.

A materials engineer's view: the back end leaning to Asia is not the same story as the front end

What is easy to miss in that table is that the United States has no assembly and test site at all. The front end has real depth there, in Idaho, Virginia and New York, but the stacking process that makes HBM exists only in Taiwan, Singapore, Malaysia, China and India. The company does write in its 10-Q that it has announced plans to bring advanced HBM packaging capability to the United States, but gives no location, timing or amount Not yet confirmed. For anyone supplying materials or equipment, that means HBM-related enquiries will keep coming from the Asian back-end sites at least until the first quarter of 2027.

7. Leading products and share in semiconductor back-end work

What HBM is

The 10-K defines HBM, high bandwidth memory, as follows Sourced.

The company's own definition

A three-dimensional stacked DRAM architecture using through-silicon via connections, which delivers high bandwidth at lower power consumption than other memory, and is therefore suited to applications such as AI and high performance computing that demand high data throughput and energy efficiency.

Ordinary DRAM is laid out flat on a board. HBM stacks the DRAM dies vertically and connects them with electrodes that pass straight through the silicon. Shorter wiring means more data moved at once and lower power. The price of that is taking on the whole difficulty of the back end, stacking and bonding.

Where the product generations stand

GenerationStatus as announced by the company on 24 June 2026Underlying DRAM node
HBM4Shipping in volume for a major customer's platform, with qualification samples shipped to several end customers1-beta
HBM4EIn development. Volume production planned for calendar 2027 Not yet confirmed1-gamma
256GB DDR5 RDIMMQualification samples shipped to leading server ecosystem companies, built with advanced three-dimensional die stacking1-gamma

The names of the "major customer" and the "end customers" are not disclosed Not yet confirmed.

On market share, plainly

What could not be confirmed

Micron does not officially disclose HBM revenue, its world share of HBM, or its HBM capacity. Figures of the form "its HBM share is X per cent" or "HBM revenue in 2026 will be US$Y bn" are estimates from research firms or the press, not primary material, and this article does not use them Not yet confirmed. Only three things can be stated with confidence from primary sources.

  1. CMBU revenue, which contains HBM, rose 3.6-fold from US$3,792m in FY2024 to US$13,524m in FY2025 (though CMBU also contains DDR, LPDDR and GDDR) Our calculation
  2. One customer accounted for 17% of company revenue in FY2025, chiefly within CMBU, against a largest-customer share of 10% in FY2024 and no customer above 10% in FY2023 Sourced
  3. Construction of an advanced packaging plant for HBM began in Singapore in January 2025, with capacity ramping from the first half of calendar 2027 Sourced

The second is understated but important. Going from "no customer above 10%" to "one customer at 17%" in two years means the company has itself recognised, as an accounting concentration risk, that HBM as a product is tightly bound to particular customers Our calculation.

The competitors the company names

The 10-K names the following six companies as competitors in the memory market Sourced. Only some of them can build HBM, but the company does not list HBM competitors separately.

CompanyHeadquarters
Samsung Electronics Co., Ltd.South Korea
SK hynix Inc.South Korea
Kioxia Holdings CorporationJapan
Sandisk CorporationUnited States
ChangXin Memory Technologies, Inc. (CXMT)China
Yangtze Memory Technologies Co., Ltd. (YMTC)China

8. Current investment plans

FY2026 CAPEX PLANAbout US$27bnNet of government incentives received. The FY2025 actual was US$15,857m before that deduction
U.S. CHIPS ACT DIRECT FUNDINGUp to US$6.4bnUp to US$6.1bn for Idaho and New York plus up to US$275m for Virginia
U.S. INVESTMENT TAX CREDIT35% of qualifying investmentUnder the CHIPS Act, separate from the direct funding
NEW YORK STATE SUPPORTUp to US$5.5bnA package spanning more than 20 years for a four-fab plan, still at the stage of a non-binding term sheet

Projects under way, as the company lists them

LocationSubstanceTiming
SingaporeAn advanced packaging plant for HBM, materially increasing total advanced packaging capacityBroke ground January 2025; capacity ramps from the first half of calendar 2027
SingaporeAn additional wafer fab, more cleanroom space, within the existing NAND campusBroke ground January 2026; operational in the second half of calendar 2028
TaiwanAcquisition of the Tongluo wafer fab in Miaoli County from Powerchip for US$1.8bn. A second cleanroom of similar size is under construction alongside the existing buildingAcquisition completed March 2026; meaningful output from the middle of calendar 2027
IndiaThe assembly and test plant in GujaratCommercial shipments have begun, with volume production ramping in 2026
JapanModernisation of the Hiroshima fab for future DRAM nodes and AI memory productionUnder way
United States, IdahoA first fab, broke ground October 2023, and a second announced in June 2025First DRAM output from the first fab is expected in the second half of calendar 2027
United States, New YorkUp to four fabs at Clay, built out over more than 20 years. The first broke ground in January 2026Supplying from 2030 onwards
From a back-end point of view, one line in that table is the whole story

Of everything above, only the HBM packaging plant in Singapore and the assembly and test plant in India are back-end capacity. The rest are wafer fabs, that is, the front end. Even as Micron nearly triples its capital spending, how much of it goes to HBM stacking capacity is not published Not yet confirmed. It is therefore impossible to say from primary sources that Micron's HBM capacity will multiply by any particular factor. What can be said is only the timing: it increases in the first half of calendar 2027.

Long-term customer contracts, new in FY2026

In the third and fourth quarters of FY2026 Micron began signing multi-year agreements it calls Strategic Customer Agreements Sourced. The company describes them as follows.

  • Take-or-pay in form, with an obligation to pay whether or not the volume is collected, binding quantities over several years
  • Prices are usually fixed, or set with a ceiling and a floor. In the largest agreements the ceiling on existing products is set roughly at market prices in the second quarter of calendar 2026
  • On the agreements signed so far the company expects to receive US$22bn of cash deposits and related funding commitments, of which about US$18bn is cash deposits
  • As of 28 May 2026 the transaction price allocated to remaining performance obligations was about US$5bn, on a minimum-volume and minimum-price basis
A caution

The US$22bn is not booked revenue; it is the total of deposits and funding commitments. The company states that the remaining performance obligation disclosure is based on minimum volumes and minimum prices and is not indicative of future revenue under those agreements Sourced. The counterparties are not named Not yet confirmed.

9. Major corporate partners

This is the section that has to be written most plainly of all.

What could not be confirmed

Neither Micron's FY2025 Form 10-K nor its Q3 FY2026 Form 10-Q mentions NVIDIA, TSMC, or any other customer or partner by name, anywhere. Both documents were searched in full for this article. The only companies the filings name are the competitors listed in section 7, the counterparties to patent litigation, and government bodies. This article therefore does not record any relationship of the form "Micron HBM goes into this AI chip" as a partnership Not yet confirmed.

The relationships that can be stated from primary sources come to this table and no more.

KindCounterpartySubstancePrimary source
GovernmentU.S. Department of CommerceCHIPS Act direct funding agreement, signed December 2024 and amended June 2025, for up to US$6.4bnStated in the 10-K and 10-Q Sourced
GovernmentState of New YorkSupport of up to US$5.5bn, still at the stage of a non-binding term sheetStated in the 10-Q Sourced
GovernmentThe Government of India and the State of GujaratSupport for the assembly and test plant, shown as a separate line in the government incentives note of the 10-KStated in the 10-K Sourced
Corporate transactionPowerchipAcquisition of the Tongluo wafer fab in Taiwan for US$1.8bn, completed March 2026. An asset purchase, not a partnershipStated in the 10-Q Sourced
CustomerNot disclosed; one customer at 17% of revenueIn FY2025, sitting chiefly within CMBU, the unit that contains HBMNote 28 to the 10-K Sourced

10. Where the company is heading in this field

Anything said here is a forecast, so the established facts and the outlook drawn from them are kept apart.

What is established

FactWhat it implies for the back end
HBM4 is shipping in volume to a major customer; HBM4E is due in volume production in calendar 2027Stack heights and bonding methods keep advancing, so back-end requirements are rewritten each generation
The Singapore HBM advanced packaging plant ramps from the first half of calendar 2027The company's own investment confirms that the HBM constraint lies in the stacking process
FY2026 capital spending is about US$27bn, net of incentivesThe company itself is assuming demand will hold
One customer was 17% of FY2025 revenue and the top ten were roughly halfHBM demand tracks the design decisions of a small number of customers
Take-or-pay multi-year agreements have started to be signedA structural shift towards containing price swings by contract, which may also smooth orders for materials and equipment
Plans to bring advanced HBM packaging to the United States have been announced, without detailGeographic dispersal of the back end exists as a plan

Outlook

Not yet confirmed Read plainly, the facts above point towards Micron's weight in the back end growing further, as a supplier of HBM. The reason is simple: for anyone building an AI accelerator HBM is a component with no substitute, and only a handful of companies in the world can produce it in volume. HBM is also not a product the front end can deliver alone; it carries the back-end capabilities of stacking and bonding with it.

Not yet confirmed Two developments could break that pattern. One is supply catching up with demand. The extraordinary margins of FY2026 are being carried by price, so they are the first thing to go once supply arrives; the losses of FY2023 are the historical precedent. The other is a change in how HBM itself is stacked. If Micron's current stacking approach, whose generation-by-generation details are not disclosed, falls out of line with the industry standard, the capacity it has built stops translating into advantage. For anyone selling back-end materials or equipment, the point is to keep "HBM volumes growing" and "Micron's volumes growing" as two separate questions.

11. The risks this company carries

What follows is drawn from the risk factors Micron sets out in its own statutory filings, narrowed to those that matter in a back-end context Sourced.

RiskSubstanceSupporting figures
CyclicalityMemory prices move sharply with supply and demand, and the company names industry supply and demand as a determinant of its resultsFY2022 30,758 falling to FY2023 15,540, minus 49.5%, with the operating result going from plus 9,702 to minus 5,745 Our calculation
Customer concentrationOne customer was 17% of FY2025 revenue and the top ten were roughly half. The concentration deepened as HBM grewAs disclosed in Note 28 to the 10-K
The cost of system productsThe company states that system-level products such as HBM carry higher manufacturing cost per unit and longer cycle times, and require development tailored to a customer, which deepens dependence on that customerStated in the Risk Factors of the 10-K
Recovering capital spendingFY2026 capital spending is planned at about US$27bn. Another FY2023 would leave fixed costs weighing heavilyCapital spending of US$19,602m over the first nine months
Conditions on the incentivesCHIPS Act funding is subject to milestones and compliance requirements and can be reduced, terminated or clawed backStated in the 10-K and 10-Q
Trade rules and geopoliticsExport controls, tariffs and Chinese regulatory action, including by the CAC, are listed as risks. Some back-end sites are in ChinaThe risk factor list in the 10-K
Patent litigationNetlist has brought patent infringement claims that include HBM products. In a separate matter a jury returned verdicts of US$425m and US$20m, which Micron has appealedNote 10 to the 10-Q
A materials engineer's view: which numbers to watch

For anyone supplying materials or equipment, the number to follow at Micron is not revenue. It is CMBU revenue and operating margin each quarter, together with capital spending. CMBU is the unit that contains HBM, and the quarterly earnings release gives revenue, gross margin and operating margin for each of the four business units. The other thing worth watching would be how much of capital spending goes to the back end, and that is not disclosed. The available proxy is how the back-end sites, Singapore and India, are described in the "investments under way" passages of the 10-K and 10-Q. That wording is refreshed each quarter: between the FY2025 10-K and the Q3 FY2026 10-Q the Singapore entries went from one to two.

12. Glossary

HBM
High Bandwidth Memory. DRAM dies stacked vertically and joined by TSVs to gain bandwidth, placed beside an AI accelerator.
TSV
Through-Silicon Via. An electrode passing straight through a die, connecting stacked dies by the shortest possible path.
IDM
Integrated Device Manufacturer. A vertically integrated maker that holds design, front end and back end in house, such as Micron, Samsung or Intel.
DRAM
Fast memory that loses its contents when power is cut, holding data by continuous refresh.
NAND
Storage that keeps its contents without power, used in SSDs and smartphone storage.
1-beta and 1-gamma
Names of Micron's DRAM process generations. 1-gamma is the first generation for which the company used EUV lithography, with shipments beginning in FY2025.
Take-or-pay
A contract under which the buyer owes payment whether or not it takes delivery, fixing volumes for the seller.
Form 10-K and 10-Q
The annual and quarterly reports a U.S.-listed company files with the Securities and Exchange Commission, carrying legal liability for their contents.
Concept diagram showing stacked memory sitting beside a large logic die inside one package (AI-generated concept image)AI-generated concept
Fig. 4 Concept diagram of where HBM sits inside a package. This is an AI-generated concept image and does not depict an actual product cross-section.

13. References

  1. Micron Technology Form 10-K for the fiscal year ended August 28, 2025 (filed with the U.S. SEC on 3 October 2025). Revenue, operating income, R&D expense, capital spending, headcount, the business unit structure and results by unit, DRAM and NAND revenue, the list of principal facilities by country, customer concentration, named competitors, the CHIPS Act terms, risk factors and the definition of HBM. https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
  2. Micron Technology Form 10-Q for the quarterly period ended May 28, 2026 (filed with the U.S. SEC on 25 June 2026). Third-quarter and nine-month results, the FY2026 capital spending projection of about US$27bn, the Strategic Customer Agreements, the investment projects in Singapore, Taiwan, India, Japan and the United States, the CHIPS Act and New York State support, and the status of patent litigation. https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
  3. Micron Technology Third quarter FY2026 earnings release (Form 8-K, Exhibit 99.1, 24 June 2026). Quarterly revenue and margins by business unit, fourth-quarter guidance of US$50bn plus or minus US$1bn, volume shipment of HBM4 and the production timing of HBM4E, and product progress. https://www.sec.gov/Archives/edgar/data/723125/000072312526000013/a2026q3ex991-pressrelease.htm
  4. U.S. SEC EDGAR XBRL company facts API (CIK 0000723125). Revenue, operating income, net income, capital spending and R&D expense for FY2021 to FY2025, as tagged in each year's Form 10-K. https://data.sec.gov/api/xbrl/companyfacts/CIK0000723125.json
  5. Micron Technology Official website, "Our Company", used to check the year of founding and how the company began. https://www.micron.com/about/our-company

14. Claim-to-source audit

Claim in the articleCategorySource
Legal name, head office address, listing (Nasdaq, MU) and Delaware incorporationSourcedReferences 1 and 2 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Founded in 1978, starting with four people in the basement of a Boise dental officeSourcedReference 5, the official site https://www.micron.com/about/our-company
FY2025 revenue US$37,378m, operating income US$9,770m, net income US$8,539mSourcedReferences 1 and 4 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Revenue, operating income, capital spending and R&D expense for FY2021 to FY2024SourcedReference 4, from each year's 10-K https://data.sec.gov/api/xbrl/companyfacts/CIK0000723125.json
The 48.9% increase, the 49.5% FY2023 decline and the NOR and other revenue taken as a differenceOur calculationDerived from the figures in references 1 and 4 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
About 53,000 employees as of 28 August 2025SourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
The fourth-quarter FY2025 reorganisation and the definitions of the four business unitsSourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
FY2025 revenue by business unit (CMBU 13,524, CDBU 7,229, MCBU 11,859, AEBU 4,753, other 13)SourcedReference 1, Note 27 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
The business unit shares (36.2% and so on), CMBU's 3.6-fold rise and its 63% of operating incomeOur calculationDerived from the figures in reference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
DRAM revenue of US$28.58bn and NAND revenue of US$8.50bn in FY2025SourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
The definition of HBM (three-dimensional stacked DRAM using TSVs) and the cost characteristics of system productsSourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Customer concentration (one customer at 17% in FY2025, chiefly CMBU, top ten roughly half)SourcedReference 1, Note 28 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
The six named competitors (Samsung, SK hynix, Kioxia, Sandisk, CXMT, YMTC)SourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Principal facilities by country and the process steps at each (front end in four countries, back end in five)SourcedReference 1 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Q3 FY2026 results (revenue 41,456, gross margin 84.6%, net income 28,243, US$m) and the nine-month totalsSourcedReferences 2 and 3 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
Q4 FY2026 guidance (revenue US$50bn plus or minus US$1bn, gross margin about 86%)Not yet confirmedReference 3, company guidance https://www.sec.gov/Archives/edgar/data/723125/000072312526000013/a2026q3ex991-pressrelease.htm
FY2026 capital spending of about US$27bn, net of government incentivesNot yet confirmedReference 2, company projection https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
CHIPS Act direct funding of up to US$6.4bn, the 35% investment tax credit and up to US$5.5bn from New York StateSourcedReference 2 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
The Singapore HBM advanced packaging plant (ground broken January 2025, ramping in the first half of calendar 2027) and the additional building in the NAND campusSourcedReference 2 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
The acquisition of the Tongluo fab in Taiwan from Powerchip for US$1.8bn, completed March 2026SourcedReference 2 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
The Gujarat assembly and test plant, the Hiroshima modernisation and the Idaho and New York fab plansSourcedReferences 1 and 2 https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Volume shipment of HBM4 and volume production of HBM4E planned for calendar 2027Sourced, with the production timing not yet confirmedReference 3 https://www.sec.gov/Archives/edgar/data/723125/000072312526000013/a2026q3ex991-pressrelease.htm
The Strategic Customer Agreements (take-or-pay, US$22bn of deposits and commitments, about US$18bn in cash, about US$5bn of remaining performance obligations)SourcedReference 2 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
The Netlist patent litigation covering HBM products and the US$425m and US$20m verdictsSourcedReference 2, Note 10 https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
World share of HBM, HBM revenue on its own, and HBM capacityNot yet confirmedNone of it is disclosed. No primary source exists, so this article states no figure
Relationships with named customers and partners such as NVIDIA or TSMCNot yet confirmedNo company name appears anywhere in references 1 or 2, so this article does not treat any as a partnership https://www.sec.gov/Archives/edgar/data/723125/000072312525000028/mu-20250828.htm
Location, timing and scale of advanced HBM packaging in the United StatesNot yet confirmedReference 2 records only that the plan exists; no details are published https://www.sec.gov/Archives/edgar/data/723125/000072312526000015/mu-20260528.htm
Capacity by site, plant names, and the share of capital spending allocated to the back endNot yet confirmedNone of it is disclosed, so this article states no figure
The outlook in section 10Not yet confirmedAn interpretation by this article, drawn from the six items in the facts table

Last updated 21 September 2026 / Troy Technical
Every figure in this article comes from Micron Technology, Inc.'s statutory filings with the U.S. Securities and Exchange Commission or from the company's own announcements. No research-firm estimates or press-based figures have been used.

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