Technical Blog
Deep dive into the physics and integration logic of semiconductor manufacturing
Reactive Ion Etching (RIE): Physics, Mechanisms, and Evolution in Semiconductor Manufacturing
Introduction Reactive ion etching (RIE) is a dry etching technique that combines chemically reactive plasma species with directional ion bombardment to achieve
Etch Rate in Semiconductor Manufacturing: Physical Principles, Process Dynamics, and Advanced Node Evolution
Introduction Etch rate — the volume or depth of material removed per unit time — is one of the most fundamental metrics in semiconductor fabrication, directly g
Contact Etch Stop Layer (CESL): Principles, Stress Engineering, and Advanced Node Evolution
Introduction The contact etch stop layer, commonly abbreviated as CESL, is a thin silicon nitride film deposited conformally over the transistor gate stack and
Etch Stop Layer (ESL) in Semiconductor Manufacturing: Principles, Physics, and Integration Logic
Introduction An etch stop layer (ESL) is a thin, selectively etch-resistant film deposited within a semiconductor device stack to terminate etching processes at
EKC Post-Etch Residue Removal: Principles, Mechanisms, and Advanced Node Integration in Semiconductor Manufacturing
Introduction In semiconductor manufacturing, every plasma etch step that defines a pattern also leaves behind unwanted byproducts on the wafer surface T2. These
Mastering the Oxide Notch Etch: Principles, Mechanisms, and Advanced Node Integration
Introduction In the pursuit of continuous transistor scaling, the semiconductor industry has transitioned from classic two-dimensional planar architectures to c
Fundamentals of Tapered Profile Etch in Semiconductor Fabrication: Principles, Mechanisms, and Integration
Introduction Tapered profile etch, often referred to as slope etch or tapered etch, is a specialized plasma etching technique designed to fabricate features wit
Demystifying Contact Hole Etch: Process Physics, Integration Principles, and Advanced Node Challenges
Introduction The fabrication of modern integrated circuits is divided into distinct manufacturing phases, where the transition between the active device layer a
Wet Chemical Cleaning in BEOL: The Science and Engineering of EKC Post-Etch Residue Removal
1. Introduction In modern ultra-large-scale integration (ULSI) semiconductor manufacturing, defining features at sub-nanometer scales requires an intricate danc
The Principles and Integration of Break-Through Etch in Advanced Semiconductor Manufacturing
Introduction In the field of advanced semiconductor fabrication, achieving sub-nanometer structural precision requires absolute control over every interface and
Remote Plasma Oxide Etch: Physical Mechanisms, Process Principles, and Advanced Node Integration
Introduction In advanced semiconductor manufacturing, the ability to selectively remove ultra-thin films without damaging the underlying atomic layers is a crit
Understanding Litho-Etch-Litho-Etch (LELE): Physical Principles, Process Integration, and Advanced Node Evolution
Introduction In the continuous pursuit of scaling down silicon integrated circuit (IC) features, semiconductor manufacturing eventually encountered the fundamen