Technical Blog
Deep dive into the physics and integration logic of semiconductor manufacturing
7nm FinFET M3 Interconnect Integration: Process Flow Principles and ESL Mechanics
Role in the Complete Flow In the 7nm FinFET technology platform, the metal-three (M3) interconnect module occupies a pivotal position within the back-end-of-line (BEOL)…
7nm FinFET Mid-Level Interconnect Integration: Process Flow Principles and Module Dependencies
Role in the Complete Flow In a 7nm FinFET technology platform, the mid-level interconnect stack — typically spanning metal levels M4 through M8 — serves as the critical bridge…
7nm FinFET Metal-Nine Interconnect Integration: ESL Chemistry, Damascene Logic, and Module Dependencies
Role in the Complete Flow The 7nm FinFET metal-nine (M9) interconnect integration module occupies a critical position in the back-end-of-line (BEOL) stack of a 7nm CMOS FinFET…
7nm FinFET Dummy-Poly Opening and Planarization Process Flow: Integration Principles, Physical Mechanisms, and Module Dependencies
Role in the Complete Flow The 7nm FinFET dummy-poly opening and planarization (POP) module sits at a pivotal junction in the replacement metal gate (RMG) integration scheme…
7nm FinFET Replacement Metal Gate Integration Process Flow: Principles, Mechanisms, and Integration Logic
Role in the Complete Flow The replacement metal gate (RMG) module in a 7nm FinFET process flow is the defining structural transformation that converts a temporary polysilicon…
7nm FinFET Source-Drain Integration: Process Flow Principles, Device Physics, and Module Dependencies
Role in the Complete Flow The source-drain (SD) integration module in a 7nm FinFET process occupies a pivotal position between front-end-of-line (FEOL) transistor definition and…
7nm FinFET Pad Oxidation Pre-Clean: Integration Principles and Surface Physics
Role in the Complete Flow In a 7nm FinFET process flow, the pre-pad oxidation surface cleaning operation sits at the critical boundary between incoming substrate preparation and…
7nm FinFET Contact-Via Integration Process Flow: Principles, Mechanisms, and Module Dependencies
Role in the Complete Flow The 7nm FinFET contact-via integration module occupies a pivotal position in the overall process sequence: it bridges front-end-of-line (FEOL)…
7nm FinFET Starting Wafer and Substrate Preparation: Integration Principles, Device Physics, and Process Flow
Role in the Complete Flow The starting wafer and substrate preparation (WFR) module is the foundational entry point of the entire 7nm FinFET process flow.
FinFET Fin: Physical Principles, Patterning Mechanisms, and Advanced Node Evolution
The FinFET fin is the defining structural element of the non-planar transistor architecture that has powered semiconductor scaling from the 22 nm node onward.
Ion Implantation in Semiconductor Manufacturing: Physical Principles, Process Integration, and Node Evolution
Ion implantation is the cornerstone doping method in modern semiconductor manufacturing, replacing classical thermal diffusion because it provides independent, precise control of…
NMOS Transistor: Operation and Formation
How does an NMOS transistor work, and how is it built? Separate the operating inversion channel from a real planar p-body, gate and source/drain sequence.