CXMT detailed its 4F² DRAM architecture roadmap, targeting DDR5 RDIMMs by end-2026, while its global DRAM market share rose to 9.5% in 2Q26. The 4F² tech reduces cell area by 33%, placing CXMT roughly two years ahead of SK hynix and Samsung. Bearish for global DRAM prices due to intensified competition and potential supply expansion.
DRAMDDR5LPDDR5CXMT (ChangXin Memory Technologies), SK hynix and 3 totalTrendForceCapacity Change
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CXMT (ChangXin Memory Technologies), SK hynix, Samsung
CXMT president Cao Kanyu announced that the company's first 4F² DRAM product will be a server DDR5 RDIMM, expected to launch by the end of the year; the announcement was made at the Integrated Chips and Chiplets Conference on Saturday, and the article was published on 13 October 2026. The memory uses vertical transistors to reduce the cell footprint by about one-third on paper, but no speeds or capacities have been announced yet. CXMT expects to sell a memory cell that Samsung and SK hynix have only shown in research papers. The source does not state the cause of the announcement.
China's ChangXin Memory Technologies (CXMT) is raising concerns over the future pricing power of Samsung Electronics, SK Hynix, and Micron as its plans for next-generation server DRAM prompt renewed scrutiny of competition in 2027 and 2028; South Korean industry observers caution, however, that CXMT has yet to demonstrate the production yields and reliability needed to challenge established suppliers at scale.
server DRAMSamsung Electronics, SK Hynix and 3 totalDigiTimes Asia
According to Economic Daily News, NVIDIA announced plans for a 400Gb/s-per-lane optical module specification at the Open Compute Project (OCP) Global Summit in San Jose, California, and has partnered with Cisco to develop the Ultra-Dense Small Form Factor Pluggable (USFP) specification, designed to support 400Gb/s per lane. NVIDIA and Cisco say the new design is expected to deliver four times the bandwidth density and 1.3 times the power efficiency of existing 200Gb/s-per-lane optics, with a path to 12.8Tb/s of total capacity; the companies plan to establish an open industry specification, potentially encouraging adoption by major cloud providers and creating opportunities in the pluggable optical module market. Economic Daily News highlights Luxnet and PCL Technologies as potential beneficiaries. The 4x and 1.3x figures are company expectations, and the event remains at the planning/specification stage. The report also notes: Meta is adopting NVIDIA's Spectrum-6 switch chips for the IceCube platform in its next-generation IcePack liquid-cooled network racks; NVIDIA's standalone Vera CPU MGX racks have entered mass production and begun shipping, are manufactured on TSMC's 3nm node and, per the report, deliver 50% higher performance and twice the performance per watt compared with conventional x86 CPUs; Commercial Times identifies 12 Taiwanese Vera CPU MGX rack partners, including Foxconn, Quanta subsidiary QCT, Wistron, Wiwynn, Inventec, Compal, Pegatron, MiTAC, ASUS, GIGABYTE, MSI, and ASRock subsidiary ASRock Rack; and NVIDIA is opening up its Vera Rubin rack and compute tray designs under the third-generation MGX 1.2 specification, whose modular liquid-cooling design eliminates internal cables, hoses, and fans from compute trays, reducing assembly and maintenance times from hours to minutes, while supporting up to 5,000 amperes to increase power density.
RCA announced the 1802 single-chip microprocessor in February 1976. Samples were available internally by 1975. Compared to the earlier two-chip 1801, the 1802 reduced silicon real estate from 120,000 square mils to 40,000 square mils, a 3× reduction, while adding 10 or 15 percent more functions.
According to Yicai Global, CXMT President Cao Kanyu introduced the company's 4F² DRAM architecture at the October 10 Integrated Circuits and Chiplet Conference, with plans to launch next-generation DDR5 RDIMMs based on the technology by year-end — a plan, not a confirmed high-volume production milestone. As explained by MyDrivers, the industry currently relies on 6F² designs, in which each memory cell occupies six times the square of the minimum feature size; 4F² reduces that footprint to four times, potentially boosting memory density by 30%–50% within the same area. Central to CXMT's approach is a Vertical Surrounded Gate (VSG) transistor, which improves electrostatic control while reducing leakage current and short-channel effects. Cao said CXMT has more than 300 published patent families related to the 4F² architecture. Per TrendForce, CXMT ranked fourth in global DRAM revenue in 2Q26, with its market share climbing to 9.5% from 7.6% in the previous quarter, trailing Samsung (39.4%), SK hynix (24.9%) and Micron (23.3%). Meanwhile, Samsung unveiled a 16Gb prototype combining 4F² cells and wafer-to-wafer hybrid bonding at ISSCC 2026, but is reportedly prioritizing hybrid bonding for commercialization; that technology is not expected to reach the market before 2028, with no firm timeline for 4F² integration. Wccftech reports Samsung is eyeing 4F² adoption for its B1b process, reportedly renamed D0a, while SK hynix is advancing vertical-gate (VG) 4F² DRAM. According to Money Today, CXMT's upcoming products may only partially adopt 4F² technology, and achieving high-volume production remains a separate hurdle.
According to a TrendForce post dated Oct 9, 2026, NVIDIA's NVHBM could rewrite the HBM playbook, accelerating the custom HBM era and giving base dies a much bigger role. Under this trend, memory makers may increasingly turn to external foundries for base die production. Micron and Samsung are already rethinking their strategies, putting foundry giant TSMC increasingly in the spotlight. The source uses hedged wording ('may', 'could'), so this is an analytical outlook rather than a confirmed capacity change; the source does not state the cause beyond the NVHBM-driven custom HBM shift.
HBM base diecustom HBMMicron, Samsung and 3 totalTrendForce Official (Market Data)
GlobalFoundries and TSMC have signed an effective five-year, $2 billion manufacturing agreement under which GlobalFoundries will expand capacity at its Malta, NY fab to produce silicon interposers for TSMC's CoWoS advanced packaging technology, with volume production slated to ramp up in the first half of 2028.
Samsung is reportedly planning to exit the automotive application processor (AP) business it has pursued since 2018. According to the report citing industry sources, once Samsung completes production under existing supply commitments to Hyundai Motor (agreement secured in 2023) and Germany's BMW (secured last year), it plans to discontinue the development and mass production of successor Exynos Auto products; this is a reported plan, not a confirmed halt. Samsung will focus its System LSI operations on image sensors and next-generation mobile APs as it seeks to return the division to full-year profit next year. The stated causes are high development costs from stringent automotive safety and durability requirements and Qualcomm's effective dominance of the automotive AP market, which makes it difficult for Samsung to gain share. The System LSI and foundry businesses have together posted annual losses totaling trillions of won. In its latest detailed update released with second-quarter results in July, Samsung said expanded sales of mobile SoCs and image sensors helped System LSI post record first-half revenue in 2026. Samsung is developing the Exynos 2700 mobile AP, scheduled to enter mass production in the fourth quarter on Samsung Foundry's second-generation 2nm process, and seeks to expand its adoption in the Galaxy S27 series due in 2027; Samsung spent KRW 7.44 trillion on mobile APs from external suppliers in the first half of 2026. Samsung also plans to expand businesses including display driver ICs (DDIs), power management ICs (PMICs), and chip design for data centers.
automotive application processors (APs)image sensorsnext-generation mobile APsSamsung, Samsung Electronics System LSI division and 6 totalTrendForceEOL/Discontinuation
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Samsung, Samsung Electronics System LSI division, Qualcomm, Hyundai Motor, BMW, Apple
Micron and Samsung are shifting HBM base die production to TSMC, with Micron projecting higher ASP and margins for NVHBM. This follows NVIDIA's NVHBM architecture which increases base die value. Bullish: Outsourcing to TSMC and higher ASP expectations for custom HBM.
HBMHBM4HBM4EMicron, Samsung and 6 totalTrendForcePartnership/M&A
Kioxia announced a 2x speed increase for its Optane-class GP series SSDs using Gen 3 XL-FLASH technology, achieving over 20 million IOPS. The company also unveiled the LD4, a PCIe 5 E1.L QLC SSD with 15.36 and 30.72 TB capacities. This launch targets AI infrastructure demands but currently shows no immediate impact on spot prices.
Micron's Taoyuan union won the right to strike with 88.3% approval, demanding higher bonuses and a 15% operating profit target by FY2027. Mediation is set for Oct 22, 2026. Watch: Potential supply disruption risk pending future negotiations.
DRAMNAND FlashMicron TechnologyTrendForce Official (Market Data)Capacity Change
Samsung Electronics reported a record 783% YoY operating profit surge to 107.4 trillion KRW in Q3 2026, driven by HBM4 demand and memory price gains. HBM bit shipments jumped nearly 50% QoQ, while DRAM prices rose amid tight supply. Bullish: Supply constraints and price uptrends are confirmed.
According to STAR Market Daily, semiconductor testing demand is surging as increasingly complex AI chips require more intensive processes, tightening available capacity; OSAT provider Sigurd Microelectronics has posted monthly revenue above NT$2 billion for three consecutive months, and customers are increasingly signing long-term agreements to secure testing capacity — most have signed capacity agreements lasting more than a year, others have reserved capacity through dedicated equipment, and some memory customers are even willing to pay premiums to lock in capacity. On pricing, Sigurd said it could not speak for the industry but confirmed that it has already begun raising its own prices. Per TechNews, AI, CPUs, GPUs, ASICs, and silicon photonics generated about NT$3.7 billion in revenue for Sigurd in the first nine months of 2026, up from roughly NT$2.5 billion a year earlier, with their share of total revenue rising from 20% to 24%, and the company expects the share to exceed 30% in 2027. Silicon photonics is also a key growth driver: Sigurd has expanded its optical communications testing capabilities to cover EICs, PICs, and optical engines, spanning testing technology, R&D engineering, and volume production. Strong demand is accelerating capacity expansion: Sigurd's second Hukou plant began production in July, with about 40% of capacity online as of October and already locked in by customers; Zhongxing Plant 3 is scheduled for completion in the fourth quarter of 2026 and volume production in the first quarter of 2027. Sigurd has raised its 2026 capex to NT$8.8 billion, 48% above its original plan, focused on advanced testing equipment, and is in discussions with several key customers and could raise capex again in the coming months. As background: per Seoul Economic Daily citing Nomura Securities, NVIDIA Blackwell's final test time is estimated at four times that of Hopper, while Rubin could require seven times as long, with testing's share of GPU manufacturing costs projected to rise from 1.9% for Hopper to 2.5% for Blackwell and 3.3% for Rubin; per ETNews, Digital Frontier and UniTest have secured a combined KRW 283.94 billion in HBM4 wafer tester orders from SK hynix this year, and as HBM complexity increases, more test items and longer testing times could drive testing equipment demand to grow faster than HBM output itself.
AI芯片测试产能HBM4晶圆测试机硅光子（EIC、PIC、光引擎测试）Sigurd Microelectronics, SK hynix and 5 totalTrendForcePrice Movement
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Sigurd Microelectronics, SK hynix, Digital Frontier, UniTest, NVIDIA
Micron's Taoyuan union in Taiwan secured the legal right to strike via a vote held between October 1 and 6, in which 1,994 of 2,258 registered members voted in favor, representing 88.3% of total membership and exceeding the required majority; Taoyuan is the first of Micron's separate Taoyuan and Taichung enterprise unions to secure the right to strike. The Taichung union is scheduled for a second labor-management mediation session on October 22 and could proceed to a strike vote if no agreement is reached. Union chairman Lin Che-jui called on Micron to present concrete proposals and negotiate as the company's board meets on October 8 and 9; without meaningful progress the union will discuss further action, and members will be notified by text message once the timing of any surprise strike is confirmed. The union is also planning a demonstration on Ketagalan Boulevard on October 19, encouraging employees to take leave to participate. Its demands include a profit-sharing system tied to 15% of Micron's operating profit: an additional one-time FY2026 bonus based on 15% of global operating profit, estimated at about 83 months of pay per Taiwan employee; an overhaul of the IPP system from FY2027 to distribute 15% of operating profit quarterly; plus 'no free-rider' and 'non-retaliation' clauses. The backdrop cited is compensation disparity: in 2025, Micron's global employee IPP performance factor was 93.9%, translating into about 2.3 months of performance bonuses for Taiwan employees before being adjusted to 2.6 months, while the CEO received annual cash performance compensation equivalent to 32.4 months of pay; only about 40% of Micron Taiwan employees had previously received stock awards. TrendForce notes that Micron's Taoyuan fab primarily produces DRAM; if a strike takes place and disrupts equipment maintenance and process monitoring by engineers, production yields and stability could decline, potentially affecting output, and the impact on supply could gradually increase if the strike is prolonged; however, the actual impact will depend on the scale and duration of the strike as well as Micron's contingency measures, and the outcome of labor-management negotiations still requires close attention.
The labor union at Micron Technology's Taoyuan operations in Taiwan has won the right to strike and set up picket lines. Ballots were counted on the night of October 6, after six days of voting. The title states the strike vote won with 99% support. The source does not state the cause of the dispute.
Micron has locked in most of its 2027 HBM supply at higher prices, signaling a strong demand outlook. Korean suppliers like Hanmi Semiconductor are poised to benefit from this expansion. Bullish for HBM supply chain.
HBMMicron Technology, Hanmi SemiconductorTrendForce Official (Market Data)Shortage Alert
Micron CEO Sanjay Mehrotra forecasts tighter supply-demand conditions in fiscal 2027 and 2028 compared to 2026, citing delayed capacity additions from the 'Big Three' until late 2028. This outlook contradicts previous expectations of gradual supply improvement and suggests a prolonged shortage period driven by infrastructure gaps.
DRAMNAND FlashHBMMicron Technology, Samsung Electronics and 3 totalTrendForceCapacity Change