Company:Yangtze Memory Technologies

From HandWiki
Yangtze Memory Technologies Corp.
Native name
长江存储科技有限责任公司
TypePartially state-owned enterprise
IndustrySemiconductors
FoundedJuly 26, 2016; 10 years ago (2016-07-26)[1][2]
Headquarters
Wuhan, Hubei
,
China
Area served
Worldwide[3]
Key people
Chen Nanxiang
(Chairman and CEO)[3]
Products
[3]
BrandsXtacking
Zhitai
Number of employees
~8,000 (2023)[4]
ParentCCSH Corporation (长江存储控股股份有限公司; 100%)[2]
Website{{{1}}}
Yangtze Memory Technologies Corp.
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Yangtze Memory Technologies Corp. (YMTC) is a Chinese semiconductor integrated device manufacturer specializing in flash memory (NAND) chips. Founded in Wuhan, China, in 2016, with government investment and a goal of reducing the country's dependence on foreign chip manufacturers, the company was formerly a subsidiary of partially state-owned enterprise Tsinghua Unigroup.[6][7]

YMTC produces enterprise solid state drives under its own brand and for resellers like Lexar, HP, Acer, Kingston, Teamgroup. Its consumer products are marketed under the brand ZhiTai (Chinese: 致态).

History

Tsinghua Unigroup founded YMTC in July 2016, with a total investment of US$24 billion, including investments from the Hubei provincial government and the state-owned China Integrated Circuit Industry Investment Fund.[8][9]

In 2018, YMTC released its Xtacking architecture designed for Vertical NAND chips at the Flash Memory Summit, receiving the "Best of Show" award for "Most Innovative Flash Memory Start-up Company".[10][11] YMTC's 3D NAND flash memory chips were the first to be domestically mass-produced in China.[12] Later in 2018, YMTC announced mass production of its 32-layer 3D NAND flash memory chip, and in September 2019, YMTC reported that it had started mass-producing its 64-layer TLC 3D NAND flash memory chip, with both chips using its Xtacking architecture.[13]

In April 2020, YMTC announced that it had developed a 128-layer 1.33 Tb flash memory chip.[14] From 2020 to 2021 YMTC suffered from unsatisfactory yield from its initial risk production of the 128-layer memory chip, averaging around 30 to 40 percent.[15] In September 2020, YMTC unveiled its first line of consumer products under the brand name Zhitai.[16]

As of 2021, YMTC was planning its second fab with a capacity of 100,000 wafers per month which will double its total output to 200,000 wpm.[17] In September 2021, the company's chief operating officer announced that the company had shipped more than 300 million 64-layer memory chips, and the company's 128-layer QLC memory chip was ready for volume production.[18]

News agencies reported in January 2022 that YMTC had scrapped its intention to build a second 3D NAND fab announced in 2017, citing serious financial issues at Tsinghua Unigroup, its parent firm.[7][19] Bloomberg News reported in March 2022 that Apple was exploring purchasing NAND chips from YMTC to diversify its NAND chip vendors.[20]

In May 2022, PCI-SIG listed two NVMe enterprise SSDs from YMTC as PCIe 4.0 verified.[21] In July 2022, the company's CEO Simon Yang resigned citing personal reasons.[22][23] Yang remains with the company as deputy chairman.[24]

In August 2022, YMTC unveiled the X3-9070, its first 232-layer 3D NAND chip.[25][26] In October 2022, Apple announced that it would drop a plan to use YMTC memory chips in its phones amid political pressure.[27][9] In November 2022 a TechInsights report stated that YMTC had delivered 232-layer 3D NAND Flash to the market.[28][29][30]

In December 2022, YMTC was added to the U.S. Entity List.[31] In February 2023 the company reportedly laid off 10 percent of its workforce, cancelled equipment orders, and delayed plant expansion plans in response to US sanctions and challenging market conditions caused by low demand.[32] In March, China Integrated Circuit Industry Investment Fund announced its intention to invest an additional $1.9 billion into YMTC, indicating a potential revival of government funding.[33] In September 2023 the South China Morning Post reported that YMTC intensified its efforts to substitute US-sourced equipment with domestic alternatives, following a $7 billion capital infusion from state-supported investors.[34] TechInsights reported in October 2023 that YMTC shipped its first 232-layer 3D QLC NAND, setting an industry record of 19.8 Gbit/mm2.[35][36] In October 2023, YMTC again raised billions of dollars in a major fundraising round, necessitated by the high costs of adapting to stringent U.S. restrictions, including replacing U.S. equipment and developing new components, which had already depleted the $7 billion funding received prior.[37]

On November 9, 2023, YMTC sued rival memory maker Micron in the United States District Court for the Northern District of California, alleging infringement on eight of its patents.[38]

In February 2024, the U.S. Department of Defense designated YMTC as a "military company" that poses national security risks to the United States, barring it from using U.S.-designed chipmaking equipment and supplying products to the U.S. military.[39] Following its designation as a "military company" by the U.S. Department of Defense, YMTC released a statement refuting the allegation, asserting that it has not supplied its technology for military use and is not owned or controlled by the Chinese military.[40]

In March 2024, YMTC announced a breakthrough with its X3-6070 3D QLC NAND chips, achieving the endurance of 3D TLC NAND with 4,000 program/erase cycles.[41] Due to U.S. trade sanctions, as of September 2024, the company started working with Chinese semiconductor equipment manufacturers such as Advanced Micro-Fabrication Equipment, Naura Technology Group and Piotech.[42] Despite these, the company still relies on Western manufacturers like ASML Holding and U.S.-based company Lam Research.[42]

In February 2025, there are multiple reporting that Samsung is set to use hybrid bonding patent from YMTC for the production of 400-layer NAND flash memory.[43][44][45]

In March 2025, YMTC was reported to be planning price increases alongside Micron and Sandisk amid reduced production and strong AI-driven demand for memory chips.[46] In June 2025, YMTC sued Micron Technology and public-affairs firm DCI Group in the United States District Court for the District of Columbia, alleging false advertising and unfair competition. YMTC accused Micron of funding a campaign through the DCI-operated "China Tech Threat" website that falsely claimed its chips contained spyware and posed national-security risks.[47]

In September 2025, Reuters reported that YMTC planned to expand into dynamic random-access memory (DRAM), including technologies used to produce high-bandwidth memory for artificial-intelligence systems. The company was developing through-silicon via packaging for stacking DRAM dies and was considering allocating part of a new Wuhan fabrication plant to DRAM production.[48]

In April 2026, Reuters reported that YMTC planned to build two additional fabrication plants beyond a third Wuhan plant that was nearing completion. The three new plants were expected to more than double the company's production capacity when fully operational. The third plant was expected to begin operations in late 2026 and reach a capacity of 50,000 wafers per month in 2027, with more than half of its equipment sourced from Chinese suppliers.[49] In May, YMTC hired CITIC Securities and entered China's formal pre-IPO tutoring process.[50]

In June 2026, YMTC entered the South Korean consumer-storage market. Reuters reported the following month that, since its addition to the U.S. Entity List in 2022, the company had replaced around half of its equipment with Chinese-made machinery and developed techniques for stacking memory layers using less-advanced tools.[51]

In August 2026, Counterpoint Research estimated that YMTC accounted for 14% of global NAND bit shipments during the second quarter, placing it third behind Samsung Electronics and SK Hynix and ahead of Kioxia. Counterpoint ranked YMTC fifth by NAND revenue, attributing the difference to its consumer-focused product mix and its smaller presence in higher-priced enterprise solid-state drives.[52][53]

On 13 August 2026, U.S. District Judge Carl J. Nichols dismissed YMTC's 2025 action against Micron and DCI Group. Nichols ruled that the statements challenged by YMTC were political rather than commercial speech and therefore could not support the company's false-advertising claim under the Lanham Act. Micron and DCI denied wrongdoing.[54]

On 21 August 2026, the Shanghai Stock Exchange accepted for review the STAR Market IPO application of CCSH Corporation (Chinese: 长江存储控股股份有限公司), YMTC's parent company and proposed listing vehicle. CCSH sought to raise 33 billion yuan (US$4.9 billion), including 20.8 billion yuan for production-line upgrades and 12.2 billion yuan for research and development. The filing identified the wholly owned YMTC subsidiary as the group's principal operating business, accounting for more than 90% of its revenue.[55]

Technology

YMTC's 3D NAND is based on its Xtacking architecture, introduced in 2018, in which the memory cell array and the peripheral CMOS logic circuits are fabricated on separate wafers and joined face-to-face by wafer bonding, using plasma activation and thermal annealing.[56] Because the logic wafer is processed separately, it can use a faster logic process, which the company says increases input/output speeds and shortens development cycles.[56] Later generations of the architecture use hybrid bonding, in which copper interconnects are bonded directly between the two wafers: Xtacking 2.0 was used for the 128-layer third-generation flash, Xtacking 3.0 for the 232-layer fourth generation, and Xtacking 4.0 for the fifth.[25][57]

In early 2025, YMTC began shipping fifth-generation 3D TLC NAND with 294 layers (232 of them active) and a bit density above 20 Gbit/mm2, comparable to SK Hynix's ninth-generation NAND, without a formal product announcement.[58][59] By September 2025, a 267-layer TLC variant was in mass production, with NAND exceeding 300 layers in development.[60] The company has also focused on QLC NAND, where its 232-layer chips set an industry density record in 2023 and its X3-6070 QLC chip reached endurance ratings comparable to TLC NAND in 2024.[28][41]

International reception

United States

In July 2021 U.S. Representatives Michael McCaul and Bill Hagerty wrote a letter to the United States Secretary of Commerce arguing that YMTC should be placed on the department's Entity List. The letter stated that YMTC will assist the Chinese government in using unfair trade tactics to force American competitors out of the memory-chip sector, thereby putting US national security in jeopardy. It also highlighted YMTC's alleged close ties with the Chinese Communist Party and People's Liberation Army. Additionally, some YMTC executives previously worked for Semiconductor Manufacturing International Corporation, which was added to the Entity List in December 2020.[61][62]

In April 2022 U.S. Senator Marco Rubio voiced his displeasure with reports that Apple was considering procuring NAND chips from YMTC. YMTC, according to Rubio, has ties to the Chinese Communist Party and the People's Liberation Army.[63][64] In September 2022, additional legislators urged the White House to put YMTC on the entity list after a report was released about YMTC's supply of chips to Huawei.[65] In October 2022, the Biden administration announced 31 Chinese companies, including YMTC, were being added to the Unverified List.[66] On December 15, the Biden administration added YMTC to the Entity List.[31][67] The James M. Inhofe National Defense Authorization Act for Fiscal Year 2023 also banned the U.S. federal government from buying or using chips from YMTC.[68] In January 2024, the United States Department of Defense named YMTC on its list of "Chinese Military Companies Operating in the United States."[69] On March 3, 2024, The Wall Street Journal reported that in 2022, Micron lobbied the U.S. government to block exports to YMTC and spent more on lobbying in the past two years than any prior period.[70]

In February 2026, YMTC was removed from the Pentagon's list in an updated version.[71][72] In April 2026, a U.S. House panel advanced the MATCH Act, a bill that would tighten export restrictions on chipmaking equipment destined for YMTC and other Chinese chipmakers, an effort Reuters reported was driven in part by lobbying from Micron.[73] On June 8, 2026, the Department of Defense added the company back to the list.[74][75][72]

In July 2026, The Wall Street Journal reported that Apple CEO Tim Cook and other executives had lobbied President Donald Trump and administration officials to allow the use of memory chips from YMTC in Apple products sold outside the US, a move opposed by Micron.[76] Later that month, a bipartisan group of senators led by Jim Banks and Chuck Schumer sent a letter to Cook urging Apple to commit to not using memory chips from YMTC and CXMT in any of its products worldwide, citing their designation by the Pentagon as Chinese military companies, and requested a response by August 21, 2026.[77][78]

See also

References

  1. ↑ "Yangtze Memory Technologies Co Ltd - Company Profile and News". Bloomberg. https://www.bloomberg.com/profile/company/1577197D:CH. 
  2. ↑ 2.0 2.1 "Error: no |title= specified when using {{Cite web}}" (in zh). Shanghai Stock Exchange. 21 August 2026. p. 40. https://static.sse.com.cn/stock/disclosure/announcement/c/202608/002251_20260821_7075.pdf. 
  3. ↑ 3.0 3.1 3.2 "Company Profile". https://www.ymtc.com/en/intro.html. 
  4. ↑ "Company Profile - YMTC". YMTC. https://www.ymtc.com/en/aboutus.html. 
  5. ↑ "YMTC denies backdoor listing rumors amid rising industry scrutiny". 10 December 2024. https://www.digitimes.com/news/a20241210PD210/yangtze-memory-ipo-market-2016-bankruptcy.html. 
  6. ↑ "China's top memory chip maker in the crosshairs of US sanctions". South China Morning Post. 25 September 2022. https://www.scmp.com/tech/big-tech/article/3193635/tech-war-chinas-top-memory-chip-maker-carefully-treads-path. 
  7. ↑ 7.0 7.1 Shilov, Anton (26 January 2022). "Tsinghua Scraps 3D NAND and DRAM Fabs: May Affect Memory Prices". Tom's Hardware. https://www.tomshardware.com/news/tsinghua-scraps-3d-nand-and-dram-fabs. 
  8. ↑ "How China's chip industry defied the coronavirus lockdown". Nikkei Asia. https://asia.nikkei.com/Spotlight/The-Big-Story/How-China-s-chip-industry-defied-the-coronavirus-lockdown. 
  9. ↑ 9.0 9.1 "Apple Built Its Empire With China. Now Its Foundation Is Showing Cracks.". The New York Times. 10 November 2022. https://www.nytimes.com/2022/11/07/business/apple-china-ymtc.html. 
  10. ↑ "Flash Memory Summit Announces 2018 Best of Show Award Winners". Associated Press. 16 December 2021. https://apnews.com/article/technology-business-472edca95b4b227a486f5f8c4750cbb3. 
  11. ↑ Cutress, Ian; Tallis, Billy. "Flash Memory Summit 2018, Yangtze Memory Technology Keynote Live Blog: Unleashing 3D NAND". AnandTech. https://www.anandtech.com/show/13186/flash-memory-summit-2018-yangtze-memory-technology-keynote-live-blog-unleashing-3d-nand. 
  12. ↑ Choe, Jeongdong. "YMTC is China's First Mass Producer of 3D NAND Flash Memory Chips". TechInsights. https://www.techinsights.com/blog/ymtc-chinas-first-mass-producer-3d-nand-flash-memory-chips. 
  13. ↑ Clarke, Peter (2020-09-23). "China's YMTC takes 3D-NAND to 64 layers". eenewsanalog.com. https://www.eenewsanalog.com/news/chinas-ymtc-takes-3d-nand-64-layers. 
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  15. ↑ Siu, Han; Jessie, Shen. "YMTC sees low yield rates for 128-layer 3D NAND flash". DIGITIMES. https://www.digitimes.com/news/a20210824PD210.html. 
  16. ↑ "Semiconductor Industry: YMTC Starts Selling SSD Products". Businesskorea. 17 September 2020. http://www.businesskorea.co.kr/news/articleView.html?idxno=51963. 
  17. ↑ "The Impending Chinese NAND Apocalypse – YMTC 128 Layer NAND is the First Semiconductor Where China is Technologically Competitive". 28 September 2021. https://semianalysis.com/the-impending-chinese-nand-apocalypse-ymtc-128-layer-nand-is-the-first-semiconductor-where-china-is-technologically-competitive/. 
  18. ↑ Siu, Han; Jessie, Shen. "YMTC ready to volume produce 128-layer QLC NAND flash". DIGITIMES. https://www.digitimes.com/news/a20210922PD201.html. 
  19. ↑ Pan, Che (12 July 2022). "China's Tsinghua Unigroup completes debt restructuring, ownership change to keep afloat its major semiconductor operations". South China Morning Post. https://www.scmp.com/tech/big-tech/article/3185033/chinas-tsinghua-unigroup-completes-debt-restructuring-ownership. 
  20. ↑ "Apple Weighs More Memory Chip Suppliers, Including China". Bloomberg.com. 31 March 2022. https://www.bloomberg.com/news/articles/2022-03-31/apple-said-to-weigh-more-memory-chip-suppliers-including-china. 
  21. ↑ Shilov, Anton (13 May 2022). "YMTC's New In-House Controllers to Power PCIe 4.0 SSDs". https://www.tomshardware.com/news/ymtc-develops-pcie-gen4-ssd-controllers. 
  22. ↑ Manners, David (2022-09-30). "Yangtze Memory CEO reported to have resigned". https://www.electronicsweekly.com/news/business/yangtze-memory-ceo-reported-to-have-resigned-2022-09/. 
  23. ↑ "CEO of Chinese chipmaker Yangtze Memory steps down" (in en-GB). https://asia.nikkei.com/Business/Tech/Semiconductors/CEO-of-Chinese-chipmaker-Yangtze-Memory-steps-down. 
  24. ↑ "Error: no |title= specified when using {{Cite web}}". 30 September 2022. https://new.qq.com/rain/a/20220930A07ERC00. 
  25. ↑ 25.0 25.1 Pires, Francisco (3 August 2022). "YMTC Announces Xtacking 3.0 for Faster, Denser 3D TLC NAND". Tom's Hardware. https://www.tomshardware.com/news/ymtc-announces-xtacking-30-for-faster-denser-3d-tlc-nand. 
  26. ↑ Horwitz, Josh (4 August 2022). "China's memory upstart YMTC edges closer to rivals with 232-layer chip". Reuters. https://www.reuters.com/technology/chinas-memory-upstart-ymtc-edges-closer-rivals-with-232-layer-chip-2022-08-04/. 
  27. ↑ "Apple freezes plan to use China's YMTC chips amid political pressure" (in en-GB). 2022-10-17. https://asia.nikkei.com/Business/Tech/Semiconductors/Apple-freezes-plan-to-use-China-s-YMTC-chips-amid-political-pressure. 
  28. ↑ 28.0 28.1 "Disruptive Event - YMTC 232L TLC 3D NAND". TechInsights. https://www.techinsights.com/disruptive-event/ymtc-232l-tlc-3d-nand. 
  29. ↑ "China's top memory chip maker YMTC on cusp of becoming a global market leader". South China Morning Post. 2022-12-01. https://www.scmp.com/tech/tech-war/article/3201715/chinas-top-memory-chip-maker-ymtc-takes-latest-step-become-global-market-leader-us-sanctions-could. 
  30. ↑ Shilov, Anton (10 December 2022). "Ultra-Fast SSDs Coming: 2400 MT/s NAND in Mass Production". Tom's Hardware. https://www.tomshardware.com/news/ymtc-releases-zhitai-tiplus7100-ssd-with-232-layer-3d-nand. 
  31. ↑ 31.0 31.1 Alper, Alexandra (2022-12-15). "Biden blacklists China's YMTC, cracks down on AI chip sector". Reuters. https://www.reuters.com/technology/biden-blacklist-chinas-ymtc-crackdown-ai-chip-sector-2022-12-15/. 
  32. ↑ Freedman, Andrew (14 February 2023). "Chinese Flash Maker Slashes Jobs Amid Sanctions". Tom's Hardware. https://www.tomshardware.com/news/ymtc-cutting-jobs. 
  33. ↑ "China Plans to Inject $1.9 Billion Into Top Memory Chipmaker". Bloomberg.com. 2 March 2023. https://www.bloomberg.com/news/articles/2023-03-02/china-plans-to-inject-1-9-billion-into-top-memory-chipmaker. 
  34. ↑ Pan, Che (20 September 2023). "Exclusive: Top Chinese memory chip maker rushes to replace US parts in machinery". South China Morning Post. https://www.scmp.com/tech/tech-war/article/3235074/tech-war-chinas-top-memory-chip-maker-ymtc-forges-closer-ties-domestic-supplier-replace-us-parts. 
  35. ↑ "China Does It Again: A NAND Memory Market First". Techinsights. https://www.techinsights.com/blog/china-does-it-again-nand-memory-market-first. 
  36. ↑ Shilov, Anton (31 October 2023). "China's Blacklisted YMTC Ships World-Leading 232-Layer 3D QLC NAND". Tom's Hardware. https://www.tomshardware.com/news/chinas-ymtc-ships-232-layer-3d-qlc-nand-worlds-highest-recording-density. 
  37. ↑ Leng, Cheng; Liu, Qianer (2 November 2023). "Costs of US chip curbs force China's YMTC into major fundraising round". Financial Times. https://www.ft.com/content/4dcaaf91-d77f-4c70-97bf-69ba6a4e94f9. 
  38. ↑ "Chinese chipmaker YMTC sues Micron alleging patent infringement". Reuters. 13 November 2023. https://www.reuters.com/technology/chinese-chipmaker-ymtc-sues-micron-alleging-patent-infringement-2023-11-13/. 
  39. ↑ Shilov, Anton (2 February 2024). "Pentagon now considers China's 3D NAND maker YMTC a 'military company' — designation bars company from using US-designed chipmaking equipment". https://www.tomshardware.com/tech-industry/manufacturing/pentagon-now-considers-chinas-3d-nand-maker-ymtc-a-military-company-designation-bars-company-from-using-us-designed-chipmaking-equipment. 
  40. ↑ "China chip maker YMTC says its tech not for military use after Pentagon list". Reuters. 2024-02-03. https://www.reuters.com/technology/china-chip-maker-ymtc-says-its-tech-not-military-use-after-pentagon-list-2024-02-03/. 
  41. ↑ 41.0 41.1 Shilov, Anton (29 March 2024). "Chinese flash memory maker claims breakthrough - QLC NAND matches endurance of TLC NAND". https://www.tomshardware.com/pc-components/ssds/ymtc-our-3d-qlc-nand-matches-endurance-of-3d-tlc-nand. 
  42. ↑ 42.0 42.1 "Yangtze Memory advances chip tech with Chinese tools, TechInsights says". 2024-09-19. https://www.taipeitimes.com/News/biz/archives/2024/09/19/2003823992. "The memory maker, one of a number of semiconductor companies subject to US trade sanctions designed to rein in China’s tech advances, is working with gear from Advanced Micro-Fabrication Equipment Inc (中微半導體), Naura Technology Group Co (北方華創) and Piotech Inc (拓荊科技), TechInsights analyst David Wei said in an interview." 
  43. ↑ Yoo, Ji-han; Park, Su-hyeon (2025-02-25). "Samsung strikes rare deal with China's YMTC for NAND chip tech". https://www.chosun.com/english/industry-en/2025/02/25/EDL3OS54BVE3BG6NHSONFLSTQM/. "Industry officials suggest Samsung’s licensing deal includes a cross-license agreement, allowing both companies to use each other’s patented technologies. The move follows YMTC’s 2024 lawsuit against Micron in a U.S. court, alleging NAND patent infringement." 
  44. ↑ Clarke, Peter (25 February 2025). "Samsung signs to use YMTC NAND flash technology". https://www.eenewseurope.com/en/samsung-signs-to-use-ymtc-nand-flash-technology/. 
  45. ↑ yoon, Jang Kyung (24 February 2025). "Error: no |title= specified when using {{Cite web}}" (in ko). https://zdnet.co.kr/view/?no=20250213202429#_enliple. 
  46. ↑ Feng, Coco (19 March 2025). "China's top memory chipmaker YMTC to raise prices, alongside Micron, Sandisk". South China Morning Post. https://www.scmp.com/tech/big-tech/article/3303028/chinas-top-memory-chipmaker-ymtc-raise-prices-alongside-us-peers-micron-sandisk. 
  47. ↑ Scarcella, Mike (9 June 2025). "Chinese chipmaker YMTC sues rival Micron in US over spyware claims". Reuters. https://www.reuters.com/legal/government/chinese-chipmaker-ymtc-sues-rival-micron-us-over-spyware-claims-2025-06-09/. 
  48. ↑ Pan, Che; Potkin, Fanny (25 September 2025). "China flash memory maker YMTC plans to enter the DRAM market, sources say". Reuters. https://www.reuters.com/technology/china-flash-memory-maker-ymtc-plans-enter-dram-market-sources-say-2025-09-25/. 
  49. ↑ "Chinese chipmaker YMTC plans new factories amid heightened US-Sino trade tensions, sources say". Reuters. 14 April 2026. https://www.reuters.com/world/china/chinese-chipmaker-ymtc-plans-new-factories-amid-heightened-us-sino-trade-2026-04-14/. 
  50. ↑ Pan, Che; Baptista, Eduardo; Bu, Shi; Woo, Ryan (19 May 2026). "China's top flash-memory chipmaker YMTC begins pre-IPO coaching with investment bank". Reuters. https://www.reuters.com/world/asia-pacific/chinas-top-flash-memory-chipmaker-ymtc-begins-pre-ipo-coaching-talks-with-2026-05-19/. 
  51. ↑ "How the 'twin stars' of China, CXMT and YMTC, changed the chip game". Reuters. 24 July 2026. https://www.reuters.com/world/china/chinas-memory-chip-makers-ride-ai-boom-new-power-us-scrutiny-2026-07-24/. 
  52. ↑ "Server-Led eSSDs Hit 48% of NAND Shipments; YMTC Enters Global Top Three". 12 August 2026. https://counterpointresearch.com/en/insights/server-led-essds-hit-48-percent-of-nand-shipments. 
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  54. ↑ Scarcella, Mike (14 August 2026). "Judge dismisses lawsuit claiming Micron spread false claims to hurt Chinese chip rival YMTC". Reuters. https://www.reuters.com/legal/litigation/judge-dismisses-lawsuit-claiming-micron-spread-false-claims-hurt-chinese-chip-2026-08-14/. 
  55. ↑ Baptista, Eduardo (21 August 2026). "Chinese flash-memory chipmaker YMTC parent targets $4.9 billion in Shanghai IPO". Reuters. https://www.reuters.com/world/asia-pacific/chinese-flash-memory-chipmaker-ymtc-plans-raise-49-billion-shanghai-ipo-2026-08-21/. 
  56. ↑ 56.0 56.1 Coughlin, Tom (2018-08-13). "Some Flash Memory Keynotes". Forbes. https://www.forbes.com/sites/tomcoughlin/2018/08/13/some-flash-memory-keynotes/?sh=4645d29b3202. 
  57. ↑ "YMTC Xtacking4.0: Breaking New Ground in 3D NAND Technology". https://www.techinsights.com/blog/ymtc-xtacking40-breaking-new-ground-3d-nand-technology. 
  58. ↑ Shilov, Anton (3 February 2025). "Chinese chipmaker ships record-breakers: YMTC quietly begins shipping 5th Gen 3D TLC NAND". Tom's Hardware. https://www.tomshardware.com/pc-components/ssds/chinese-chipmaker-ships-record-breaking-chips-ymtc-quietly-begins-shipping-5th-gen-3d-tlc-nand. 
  59. ↑ "Yangtse shipping 294-layer NAND (but 62 are dummies)". Electronics Weekly. 6 February 2025. https://www.electronicsweekly.com/news/business/yangtse-shipping-294-layer-nand-but-62-layers-are-dummies-2025-02/. 
  60. ↑ "YMTC closes gap with global rivals: Xtacking 4.0 powers 267-layer NAND, eyes 300+". DigiTimes. 24 September 2025. https://www.digitimes.com/news/a20250924PD216/ymtc-nand-nand-flash-production-memory.html. 
  61. ↑ Joseph, Marks; Aaron, Schaffer. "The Cybersecurity 202 newsletter". The Washington Post. https://www.washingtonpost.com/politics/2021/07/12/cybersecurity-202-schools-are-another-prime-ransomware-target/. 
  62. ↑ "McCaul, Hagerty letter to Raimondo re. YMTC". The Washington Post. 12 July 2022. https://www.washingtonpost.com/context/mccaul-hagerty-letter-to-raimondo-re-ymtc/6feb1563-2c74-4d50-a8ff-13c5dd771bb8/. 
  63. ↑ Clark, Douglas (5 April 2022). "Sen. Rubio expresses concerns regarding potential Apple NAND chips purchase". https://homelandprepnews.com/stories/76543-sen-rubio-expresses-concerns-regarding-potential-apple-nand-chips-purchase/. 
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