Deep Water Semiconductor半导体深水区 · translated column
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Deep Water Semiconductor

English translations of the《半导体深水区》column — semiconductor supply chain, advanced packaging, memory and interconnect. 30 article(s). RSS

ACM Research Backlog Hits $2.5B, Up 88% YoY, Despite Sluggish H1 Revenue

ACM Research disclosed a voluntary announcement on the evening of September 30: as of September 29, 2026, total backlog reached 17.073 billion yuan, up 88.20% year-over-year, equivalent to approximately $2.5 billion. Par

October 04, 2026

Renesas Unveils 650V GaN with 20mΩ RDS(on) for AI Data Centers

Renesas released the TP65H020G4PLSGBD 650V GaN device, featuring 20mΩ on-resistance and an 8mm×8mm dual-side cooling PQFN package. The company claims it is the industry's first 650V dual-side cooling GaN for megawatt-sca

October 04, 2026

Glass Substrate Standard: 510x515mm vs 515x510mm Split Among Four Major Vendors

Four glass manufacturers have standardized on either 510x515mm or 515x510mm, driven by existing equipment and display glass supply chains, despite unresolved process route convergence.

October 04, 2026

Biren's BR20X GPU Enters Pre-Production Phase for Data Center Deployment

Biren's next-generation chip is currently in the critical pre-production phase, akin to a restaurant's soft opening, where final validation and customer onboarding occur before full-scale delivery.

October 04, 2026

HBF: KV Cache Savior or Trap? Berkeley and FuriosaAI Papers Reveal Scheduling Decides

Two papers published in the same month give opposite verdicts on high-bandwidth flash (HBF). Whether it solves the KV cache bottleneck or creates a trap depends entirely on the scheduler.

October 04, 2026

Intel Completes Interface Certification for Nova Lake Ahead of Launch

Processor benchmarks can be optimized later, but interface certification schedules cannot be bypassed. Intel's next-generation platform has already completed this unavoidable step in advance.

October 04, 2026

Qorvo C-Band Radar Front-End: Integrated BAW Switch-Filter and GaN PA

Qorvo's new C-band radar front-end integrates BAW switch-filtering and high-efficiency GaN power amplifiers, eliminating discrete assembly for pulse ESA systems.

October 04, 2026

DeepSeek Open-Sources Ascend Operator Library, Challenging NVIDIA's CUDA Moat

DeepSeek has rewritten its core training operators for Huawei's Ascend architecture and released them for free, directly targeting the most fortified segment of NVIDIA's CUDA ecosystem.

October 04, 2026

OpenAI Picks AMD Turin Over NVIDIA Vera for Jalapeño ASIC Hosts

OpenAI selected AMD EPYC Turin as the host CPU for its in-house Jalapeño ASIC, prioritizing deployment maturity and operational stability over the latest platform.

October 04, 2026

Besi Joins TSMC's $5B Silicon Valley Center to Bridge Advanced Packaging Gap

Besi joins Applied Materials' $5 billion Silicon Valley center to bridge the gap between sub-micron bonding precision and legacy back-end assembly classifications.

October 04, 2026

Samsung Prices HBM4 at Triple HBM3E Cost, Signaling Shift in AI Memory Market

Samsung has set HBM4 supply prices at over three times the current HBM3E rate, a move that will be locked in through annual contract negotiations with major AI customers.

October 04, 2026

Everspin Debuts CXL-Connected MRAM to Cut GPU Idle Time for Checkpoints and KV Caches

Everspin demonstrated a CXL-connected MRAM system at SNIA SDC 2026, targeting checkpointing and persistent KV caches to reduce GPU idle time.

October 04, 2026

JCET Signs 2.35 Billion Yuan Deal for 2.5D Silicon Interposer Fab in Wuxi

The internal structure of an AI accelerator chip simplifies to three components: a central compute die, adjacent HBM stacks, and a silicon interposer connecting them. The first two determine speed, while the third dictat

October 04, 2026

SiC Stalls at 6.5kV: Navitas Targets 10kV IGBTs for US Army

Silicon carbide devices stop at 6.5kV not due to process limits, but because higher voltages are uneconomical for this device type.

October 04, 2026

Tesla Cuts AI5 Memory to 72GB, AI6 to 144GB to Secure Optimus Production

Tesla reduced memory on its AI5 and AI6 chips to secure sufficient supply for Optimus production, marking a first where memory constraints dictate chip design.

October 04, 2026

Mitsubishi, Toshiba, Rohm Power Semiconductor Merger Stalls Over Business Scope

Three Japanese firms have agreed on the financial structure for a power semiconductor consolidation, but negotiations remain deadlocked over whether the new entity should focus exclusively on power devices or retain anal

October 04, 2026

Copper cannot scale to the distances required by modern AI clusters. As data volume grows faster than electrical interconnect efficiency, optical links are emerging as the necessary solution for multi-rack architectures.

Replacing copper wiring between dies with fiber optics is fundamentally a solution to the problem of distance.

October 04, 2026

NVIDIA Swaps PTFE for Hydrocarbon Resin in NVL576 to Boost Yield

NVIDIA is replacing superior PTFE with slightly inferior hydrocarbon resin CCL in its switch trays. The trade-off exchanges electrical performance margin for improved production line yield.

October 04, 2026

Huawei Mate 90 Launch Sparks Debate Over 1.5-Micron Logic Folding

The Huawei Mate 90 launched on October 1, shifting focus from pricing to a 1.5-micron bonding pitch revealed in third-party packaging cross-sections.

October 04, 2026

Kioxia Joins Applied Materials' EPIC Center to Tackle 3D NAND Scaling Limits

A joint development pact between an equipment maker and a memory vendor usually signals either mature processes requiring customization or unresolved process windows. Kioxia's entry into Applied Materials' EPIC center fa

October 04, 2026

JSR Opens First EUV Metal Oxide Photoresist Plant in South Korea

JSR's new facility in Chungcheongbuk-do handles only the final production step of EUV metal oxide photoresist, positioning itself near key customers to optimize supply chain logistics.

October 04, 2026

India's First Semiconductor Bet: 1200V SiC Power Devices Over Compute Chips

In a 40-product launch, the standout item is a 1200V silicon carbide MOSFET, not a compute chip. India's first semiconductor path is power devices.

October 04, 2026

Meta's Muse Makes Server CPUs Scarce as AI Agents Drive Demand

Meta's Muse has turned server CPUs into a scarce commodity. While this may seem like a rebranding of inference demand, lead times and allocation data are validating the shift sooner than expected.

October 04, 2026

Panel-Level Packaging: 16 Interposers vs. 9 on Wafers, Redefining Fab Economics

The same batch of large interposers fits nine on a circular wafer but sixteen on a square panel. The difference is not just seven units, but whether the production line is economically viable.

October 04, 2026

HBM Long-Term Contracts: A Double-Edged Sword for Buyers and Sellers

Long-term contracts, traditionally a buyer's insurance policy, have become a binding rope for both sides in the HBM market.

October 04, 2026

Snapdragon 8 Elite Gen 6 to Use Samsung HPB Structure to Move Memory Off-Stack

The next mobile chip race is about moving memory off the processor stack, not just shrinking process nodes.

October 04, 2026

Unimicron Spends NT$10.088B on Legacy Fab as Bottleneck Shifts to Materials

Unimicron spent NT$10.088 billion to acquire an existing facility. The real signal is that the capacity expansion bottleneck has shifted from construction to material availability.

October 04, 2026

LB Semicon's Expansion Hinges on New TBDB Line for Power Wafer Thinning

LB Semicon's capacity expansion prioritizes a temporary bonding and de-bonding (TBDB) line, a critical step for thinning power wafers to reduce resistance without breaking them.

October 04, 2026

JDI Sells 373,000 sqm Fab to Shinko for Advanced Packaging

JDI sells its Mobara fab to Shinko Electric Industries, a move analysts view as a strategic pivot from obsolete display capacity to high-value advanced packaging.

October 04, 2026

DB HiTek hikes prices 20-30% for Chinese clients, 10% for Korean

DB HiTek raised foundry prices twice this year, with Chinese customers facing 20-30% increases and Korean customers seeing about 10%. Pricing at the same 8-inch fab and BCD process varies based on client profitability.

October 04, 2026