KOSEN Blog.

Jun 10,2026

Xinye Era’s first 8-inch chip production line in Northwest China has entered operation, with a yield rate exceeding 95%.

Key words:

Xinye Era’s first 8-inch chip production line in Northwest China has entered operation, with a yield rate exceeding 95%.

Jun 08,2026

Metal Removal Mechanism of SC-2 Cleaning Solution

SC-2 cleaning solution (an HCl/H₂O₂/H₂O mixed system) leverages a triple synergistic mechanism—oxidation, complexation, and acid inhibition—to efficiently remove metallic contaminants from silicon wafer surfaces, achieving removal rates exceeding 99.99%.

Key words:

Metal Removal Mechanism of SC-2 Cleaning Solution

May 26,2026

SC-1 Cleaning Solution

SC-1 (Standard Clean 1) is a core step in the RCA cleaning process, formulated by mixing NH₄OH, H₂O₂, and H₂O in specific proportions.

Key words:

SC-1 Cleaning Solution

May 25,2026

Ziguang Guowei Acquires Ruineng Semiconductor for RMB 1.9 Billion

Key words:

Ziguang Guowei Acquires Ruineng Semiconductor for RMB 1.9 Billion

May 22,2026

Process Control and Safety in SPM

SPM (sulfuric acid–hydrogen peroxide mixture) is a highly oxidizing cleaning solution commonly used in semiconductor manufacturing, and its process control as well as safety and environmental management are of paramount importance.

Key words:

Process Control and Safety in SPM

May 21,2026

NVIDIA’s first-quarter revenue surged 85% to $81.6 billion.

On Wednesday, May 20, NVIDIA announced another record-breaking quarterly performance.

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NVIDIA’s first-quarter revenue surged 85% to $81.6 billion.

May 20,2026

SC-2 Cleaning Solution

SC-2 cleaning solution is one of the core steps in the RCA standard cleaning process, introduced by the U.S. company RCA in 1970 and specifically designed to remove alkali metal ions and heavy metal impurities from the surface of semiconductor wafers.

Key words:

SC-2 Cleaning Solution

May 18,2026

China’s first 10,000‑core‑class optical cable has entered mass production in Optics Valley.

Recently, FiberHome Technologies has successfully developed a 13,824‑core ultra‑large‑core-count optical cable and has already achieved mass production of this high‑core‑count product.

Key words:

China’s first 10,000‑core‑class optical cable has entered mass production in Optics Valley.

May 15,2026

Changhua Technology’s projects in semiconductor packaging materials and precision molds have been signed in Weihai.

A signing ceremony was held for cooperative projects involving Changhua Technology’s semiconductor packaging materials and precision molds, among others.

Key words:

Changhua Technology’s projects in semiconductor packaging materials and precision molds have been signed in Weihai.

May 15,2026

Main application scenarios of SPM in wafer cleaning

The two primary application scenarios for SPM are: removing hardened photoresist after ion implantation and eliminating organic contamination.

Key words:

Main application scenarios of SPM in wafer cleaning
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