Yes, Product 651818 etches GaAs.
651818
Gold etchant, standard
Synonym(s):
Antistrumin, Potassium monoiodide
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500 ML
$121.00
About This Item
solubility:
H2O: miscible
Recommended Products
composition
volatiles, 50-80%
Quality Level
bp
100 °C (lit.)
100 °C/1 atm
solubility
H2O: miscible
density
1.2924 g/mL at 25 °C (lit.)
SMILES string
[K+].[I-]
InChI
1S/HI.K/h1H;/q;+1/p-1
InChI key
NLKNQRATVPKPDG-UHFFFAOYSA-M
Related Categories
General description
Etching readily controlled with minimum undercutting. Room temperature operated. Cyanide-free for standard applications. Etch rate of 28 angstrom/sec @ 25 °C.
Gold etchant is a combination of potassium iodide and iodine as complexing agents synthesized by electrochemically oxidizing gold.[1]
Application
Gold etchant is a selective general-purpose etchant for gold, compatible with negative and positive photoresists. It is used to etch out gold (Au) electrodes prior to scanning electron microscopy (SEM) imaging for morphological study[2] and metal layer for the preparation of nanoelectrodes array.[3] Gold etchant can also be used in metal assisted chemical etching (MACE) for the fabrication of p-n junction silicon nanopillar based solar cells.[4]
signalword
Danger
hcodes
Hazard Classifications
STOT RE 1 Oral
target_organs
Thyroid
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
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Protocols
Photoresist kit offers pre-weighed chemical components for lithographic processes, with separate etchants for various substrate choices.
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Does this Au etchant etch GaAs? We bought this one for Silicon but not sure whether it works for GaAs
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