His Articles

Macro Linkages

CNY Fluctuation and Equipment Import Costs: The Sensitivity Test

Currency movements can look distant from the factory floor, but for China's semiconductor industry, changes in the value of the Chinese yuan can quickly become a practical cost issue. Semiconductor manufacturing depends on sophisticated equipment, materials, components, software, and technical services sourced from a global supply chain.

ETFs

SOXX vs. SMH: The Holdings and Fee Comparison

For investors looking for concentrated exposure to the semiconductor industry, two exchange-traded funds repeatedly appear at the center of the conversation: the iShares Semiconductor ETF, commonly known by its ticker SOXX, and the VanEck Semiconductor ETF, known as SMH. Both funds are designed to provide targeted exposure to semiconductor companies, both are widely used as building blocks for technology portfolios, and both can serve as alternatives to owning a collection of individual chip stocks. Yet they are not interchangeable.

Thematic ETFs

Cyclical Pricing Power Shifts Reflected by the HHI Industry Concentration Index for Memory

Pricing power in the memory sector does not move in a straight line. It ebbs and flows with cycles of demand, supply, consolidation, and technological transition. At the same time, the industry’s structure — who holds how much market share — is not static either. One of the most useful ways to capture this structure is the Herfindahl-Hirschman Index (HHI), a simple but powerful concentration metric that can reveal how much leverage the leading players have at any given moment.

Macro Linkages

The Inverse Relationship Between Mutual Funds’ Overweight Ratio in Semis and Forward Returns

Every cycle has its darlings. In recent years, semiconductor stocks have often played that role, riding the wave of digitization, cloud computing, artificial intelligence, and the endless need for more processing power. Mutual funds, hungry for performance and eager not to miss the next big thing, frequently pile into semis, pushing their portfolio weights well above benchmark levels. Yet a recurring pattern tends to show up: when mutual funds collectively become heavily overweight in semiconductor names, the sector’s forward returns often disappoint.

HBM Memory

Post-HBM4 Roadmap: A Forward Look at HBM4E and HBM5 Specs

As HBM4 moves from pilot to early volume, industry attention is already shifting toward the next logical stages: evolutionary refinements sometimes labeled HBM4E and a more disruptive generational step often discussed under the HBM5 moniker. This post surveys likely technical directions, realistic performance and integration targets, key enabling technologies, supply-chain and manufacturing implications, and design trade-offs system architects should expect over the next 3–6 years.

Macro Cycle

The "Bullwhip Effect" in Semis – Which Stage Are We In?

The semiconductor industry is famous for its cycles, but behind those ups and downs lies a deceptively simple dynamic: small changes in end demand can amplify into huge swings in orders, capacity, and inventory further up the supply chain. This phenomenon is widely known as the bullwhip effect—and in semis, it is particularly powerful. Understanding where we are in the bullwhip sequence is crucial for chipmakers, OEMs, distributors, and investors who want to avoid being caught on the wrong side of the next swing.

ETFs

How OTC Investors Efficiently Access Semi ETFs via Feeder Funds

For many over-the-counter investors, semiconductor ETFs look attractive but feel inconvenient. The underlying products may be listed overseas, quoted in foreign currencies, or traded in markets that are not easy to access directly. That is where feeder funds come in. A feeder fund can act as a local gateway, allowing OTC investors to gain semiconductor ETF exposure without having to handle every cross-border detail themselves. In practical terms, it is a way to make global semiconductor investing more accessible, more familiar, and often more efficient.

HBM Memory

Critical Auxiliary Material Shortages in HBM Supply Chain: GMC and EMC Supply Gaps

High-Bandwidth Memory (HBM) adoption accelerated rapidly between 2022 and 2026 as AI, HPC, and advanced graphics drove demand for on-package, ultra-high-bandwidth memory. While attention has rightly focused on wafer and packaging capacity—fabs, interposers, and OSAT lines—another set of constraints has quietly become a systemic risk: shortages in key auxiliary materials, notably gas-phase metal-containing chemicals (GMCs) used in advanced deposition and surface treatments, and electrically conductive/thermally managed materials (EMCs) used in thermal interface and conductive adhesives.

Macro Cycle

SiC and GaN 3rd-Gen Semi Penetration Rates Breach the Tipping Point

For years, silicon carbide (SiC) and gallium nitride (GaN) were discussed as promising “next‑generation” power semiconductor materials with clear technical advantages but limited commercial deployment. Their adoption curves were slow, constrained by cost, supply chain maturity, and conservative design practices in automotive and industrial markets.

Compute Chips

Tracking Domestic AI Chip Yield Ramp-Up: The Tough Climb from 40% to 70%

When countries or regions commit to building domestic AI chips, they quickly encounter a harsh reality: designing a competitive accelerator is only half the battle. The other half is manufacturing it at scale, with yields high enough to make the economics work. Moving from an early yield of around 40% to a more mature 70% is one of the toughest climbs in semiconductor production.