PasiPietila

Semiconductor manufacturing is one of the most precise industrial processes ever developed. Modern chips are fabricated at nanometer scales where even a single misplaced atom can influence device behavior. As a result, atomic-level defects and contamination have become critical challenges across the semiconductor manufacturing process flow, affecting device performance, reliability and production economics. Understanding where … Read more

Modern semiconductor manufacturing assumes that a clean silicon surface is “good enough” after standard HF-last processing. In reality, this is not the case. After the HF-last clean, the silicon surface is briefly hydrogen-terminated. However, within minutes, it begins to regrow an ultra-thin, amorphous native oxide layer. At the same time, contaminants such as carbon and … Read more

In the pursuit of More-than-Moore scaling, wafer bonding has emerged as a cornerstone of heterogeneous integration. By enabling the fusion of disparate materials—such as GaN-on-Silicon or InP-on-Silicon—the industry is unlocking performance metrics that monolithic integration simply cannot reach. However, as we push into the sub-nanometer area, the atomic-level reality of the bonding interface is becoming … Read more

For decades, the semiconductor industry managed defects the way you manage visible dirt: with progressively finer filters, cleaner rooms and tighter process controls aimed at particles you can detect. That approach worked — until it didn’t. As logic and memory nodes continue to shrink into the angstrom regime, a new class of threat has emerged: … Read more

Field-effect transistors (FETs) are the fundamental building blocks of modern electronics, enabling everything from mobile devices and automotive systems to advanced computing and communications. As semiconductor technology continues to scale toward smaller device geometries and more complex architectures such as FinFETs and gate-all-around (GAAFET) transistors, the sensitivity of devices to atomic-level imperfections has increased dramatically. … Read more

Leakage current is a critical limiter of sensor performance, yield, and reliability. The leakage current is one of the few parameters that directly impacts both yield and product pricing. Across a typical sensor portfolio, leakage reduction at BEOL can unlock $10–25M annual value. In this case study, SisuSemi is introducing a new low‑temperature (200 °C) BEOL‑compatible … Read more

In the semiconductor industry, we often find ourselves caught between two worlds: the infinitesimal realm of quantum mechanics and the high-stakes theater of global business. For executives, the focus is on yield, power budgets and market competitiveness. For engineers, the daily grind involves managing dangling bonds and oxide disorders. The bridge between these two worlds … Read more

For semiconductor professionals, the battle for yield has always been fought at ever-shrinking scales. But since the turn of the millennium, we have entered a new era: the atomic battlefield. Defects are no longer just killer particles; they are misplaced atoms, lattice vacancies and interfacial contamination measuring less than a nanometer. As we scale towards … Read more

For CMOS imaging sensor (CIS) manufacturers, atomic-scale contamination is no longer a background variable — it is a primary driver of yield loss, noise performance and product reliability. CMOS image sensors have become one of the most defect-sensitive device categories in semiconductor manufacturing. Every pixel in a CIS die must convert photons to electrons with … Read more