Technical Blog
Deep dive into the physics and integration logic of semiconductor manufacturing
TEOS in Chipmaking: Oxide Precursor and Limits
TEOS is a liquid silicon precursor used in some oxide CVD routes. Film coverage and composition depend on oxidants, activation and geometry.
Cobalt Metallization: Physical Principles, Integration Logic, and Advanced Node Scaling
In the continuous push to sustain the scaling laws of modern microelectronics, materials engineering at the nanoscale has emerged as a primary driver of device performance.
Ruthenium in Semiconductor Interconnects
What does ruthenium do in semiconductor interconnects? Compare its tested roles as a copper liner and a direct conductor, with the current copper BEOL flow as context.
Understanding Annealing in Semiconductor Manufacturing: Physics, Principles, and Process Evolution
Annealing is a fundamental thermal treatment used to alter the physical, chemical, and electrical properties of semiconductor materials.
DUV: From Exposure to Pattern Transfer
Deep ultraviolet (DUV, excimer lasers) is the workhorse exposure band of lithography: shorter wavelength buys smaller critical dimensions, in a relay of exposure, development, and etch transfer.
Hydrofluoric Acid (HF): Selectivity Limits
HF can remove silicon dioxide faster than silicon in selected oxide cleans. Oxidizers and neighboring films change that selectivity; check the full stack.
Physics and Integration of Inductively Coupled Plasma in Advanced Semiconductor Manufacturing
Inductively coupled plasma (ICP) represents a fundamental technological pillar in modern semiconductor fabrication, enabling precise pattern transfer and material surface…
TMAH: The Metal-Free Developer and Si Etchant
Tetramethylammonium hydroxide (TMAH) is a metal-cation-free quaternary base: positive-resist developer, anisotropic silicon etchant, and alkaline engine of post-CMP cleans — a chemical platform built on high pH without metallic contamination.
Wet Clean in Semiconductor Manufacturing: Physics, Mechanisms, and Integration
Wet clean is a foundational process in semiconductor manufacturing, designed to remove particulate, metallic, organic, and native oxide contamination from wafer surfaces.
The Physics, Integration, and Evolution of Work Function in Advanced Semiconductor Manufacturing
In the realm of advanced semiconductor manufacturing, the concept of work function (WF) is a cornerstone of transistor design and performance scaling.
Back End of Line (BEOL): Physical Principles, Integration, and Advanced Node Evolution
The back end of line (BEOL) represents the second major phase of semiconductor manufacturing, during which individual, isolated transistors fabricated during the front end of…
Boron Difluoride (BF2) in Semiconductor Manufacturing: Physics, Mechanisms, and Process Evolution
Boron difluoride (BF2) is a critical molecular precursor used extensively in ion implantation to introduce p-type dopants into silicon.