Technical Blog
Deep dive into the physics and integration logic of semiconductor manufacturing
Tantalum Nitride (TaN) in Semiconductor Manufacturing: Physics, Processes, and Integration
TaN can separate copper from surrounding dielectrics, but barrier continuity and film structure matter. Learn its M1 role and the distinct gate-stack use.
Thermal Diffusion in Semiconductor Manufacturing: Principles, Physics, and Process Evolution
In the realm of semiconductor manufacturing, thermal diffusion is a fundamental process that governs the movement of atoms, ions, and point defects within a solid crystal lattice…
Threshold Voltage Implant: Physics, Mechanisms, and Process Evolution in Semiconductor Manufacturing
In modern integrated circuit manufacturing, the precise control of a transistor's switching characteristics is paramount to overall chip performance, power consumption, and…
Threshold Voltage (Vth): Definition and Control
Threshold voltage (Vth) is the gate voltage where a transistor turns on — the speed-versus-leakage knob. Fabs set it with three levers: Vt-adjust implants, high-k gate stacks, and work-function metals.
Titanium Nitride (TiN): Physical Principles, Process Integration, and Advanced Semiconductor Applications
Titanium nitride (TiN) is a highly versatile transition metal nitride that has become a cornerstone material in modern semiconductor manufacturing.
Wet Etching: Selectivity and Anisotropy
Wet etching removes material in liquid; selectivity and undercut depend on chemistry and stack, while crystalline silicon can etch anisotropically.
Dry Etching: Principles, Physics, and Role in Advanced Semiconductor Manufacturing
Dry etching is one of the most critical pattern-transfer techniques in modern semiconductor manufacturing.
Copper Dual Damascene: From Trenches and Vias to Fill and CMP
Copper dual damascene forms a horizontal trench and a connecting via in dielectric, then includes both in one metallization and CMP cycle. “Dual” describes the organization of a line and a via. It does not mean simply etching twice or growing two metal levels at once.
ALD: How Self-Limiting Reactions Grow Films
Atomic layer deposition (ALD) grows films one layer per self-limiting cycle: thickness is set by cycle count alone, and every surface — deep trenches included — receives the same film.
Chemical Mechanical Planarization: Principles, Mechanisms, and Advanced Node Integration
CMP combines chemistry and mechanical contact to reduce topography. Removal and defects depend on pad, slurry, material, and pattern density.
Extreme Ultraviolet Lithography: Principles, Physics, and the Path to Sub-5nm Semiconductor Manufacturing
What Is Extreme Ultraviolet Lithography and Why Does It Matter? In the relentless pursuit of smaller, faster, and more energy-efficient semiconductor devices, lithography has…
Fin Field Effect Transistor (FinFET): Physics, Process Principles, and Technology Evolution
The fin field effect transistor (FinFET) is a three-dimensional metal-oxide-semiconductor field-effect transistor architecture in which the conducting channel is formed on a…