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 Nordic AS

Sandviksveien 26
1363 Høvik

Kontakt

Finn Applikasjoner

Begrenset søket ditt(28)

Denne applikasjonen er merket under

// 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