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667447

Sigma-Aldrich

Ceramic Etchant A

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Synonym(s):
Al2O3 Etch, Aluminum Oxide Etchant, GaN Etch, Gallium Nitride Etchant, Si3N4 Etch, Silicon Nitride Etchant
MDL number:
UNSPSC Code:
12352300
NACRES:
NA.23

Quality Level

Application

Useful for fast and controllable etching of silicon nitride (Si3N4), galium nitride (GaN), or aluminum oxide (Al2O3).

Features and Benefits

Etch Rates @ 180 °C:
Aluminum oxide 120 Å/min
Silicon nitride 125 Å/min
Gallium nitride 80 Å/min
Silicon dioxide 1 Å/min
Silicon 1 Å/min

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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