AN-S-365

Anionic impurities in concentrated semiconductor grade ammonium hydroxide

Summary

Ultrapure chemicals are required in the semiconductor industry. Ionic impurities may lead to compromised products. This application describes the determination of anionic impurities in semiconductor grade 28% ammonium hydroxide solution. To avoid matrix disturbances, Inline Neutralization and Inline Preconcentration with Matrix Elimination needs to be applied.

Download AN-S-365 (EN)

Kontakt

Metrohm Česká republika s.r.o.

Na Harfě 935/5c
190 00 Praha

Kontakt

Vyhledej aplikace

Upřesnit vyhledávání(28)

Tato aplikace byla označena jako

// Electronic components, semiconductors

Simultaneous determination of mineral acids, fluoride and silicate in etching baths.

// Electronic components, semiconductors // Halogens – fluoride, bromide, iodide // Energy

EIS Data fitting – How to obtain good starting values of equivalent circuit elements

// Electronic components, semiconductors // Electrochemistry // Energy

Chromium(VI) in electronic components as part of electrotechnical products

// Electronic components, semiconductors // Transition metals – iron, chromium // Electronics & semiconductors

Determination of cations on surfaces of printed circuit boards

// Electronic components, semiconductors // Alkali metals – lithium, sodium, potassium, rubidium, cesium // Nitrogen – ammonia, ammonium

2 / 4