Technical Blog
Deep dive into the physics and integration logic of semiconductor manufacturing
CMP Dishing vs Erosion: Read the Reference Surface
Distinguish CMP dishing from erosion by comparing local metal, neighboring dielectric and the surrounding reference field.
CMP vs Etch Endpoint: What Does the Signal Mean?
Understand what CMP and etch endpoint signals indicate, and why a transition does not verify every local structure.
Fundamental Principles of Planarization in Semiconductor Manufacturing: Physics, Mechanisms, and Integration Logic
Planarization is the process of reducing or eliminating surface topography on a semiconductor wafer so that subsequent lithographic, etch, and deposition steps can be performed…
CMP: Planarity Control, Dishing and Pattern-Density Effects
Chemical mechanical planarization (CMP) is a critical enabling process used to achieve nanometer-level local and global planarization across large-diameter wafers in integrated…
Planarization in Semiconductor Manufacturing: Physical Principles, Chemical Mechanisms, and Advanced Node Evolution
The linked STI and PMD stations are CMP examples. Planarization reduces topography; their labels do not reveal slurry, stop, endpoint, or measured defects.
Fundamental Principles of Pre-Metal Dielectric Planarization in Advanced Semiconductor Manufacturing
The pre-metal dielectric (PMD) layer, also referred to as the first interlevel dielectric (ILD0) layer, serves as the structural and electrical isolation barrier between…
Demystifying Poly Open Polish: Principles, Mechanisms, and Advanced Node Integration
In modern semiconductor manufacturing, the transition from conventional oxide-based gates to advanced transistor architectures has necessitated revolutionary changes in…
Understanding CMP Slurry Abrasives: Physical Principles, Microscopic Mechanisms, and Advanced Node Integration
In modern semiconductor manufacturing, achieving global planarization across a wafer surface is a fundamental requirement for executing sub-resolution photolithography.
Demystifying Over Polishing in Semiconductor Manufacturing: Mechanisms, Challenges, and Advanced Node Integration
In modern semiconductor manufacturing, achieving global planarization across a silicon wafer is a fundamental prerequisite for high-resolution lithography and multi-level…
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.