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Merck
CN

651842

Gold etchant, nickel compatible

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About This Item

UNSPSC Code:
12352300
NACRES:
NA.23
MDL number:
MFCD07370792

Key Documents

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vapor density

9 (vs air)

vapor pressure

0.3 mmHg ( 15 °C)

composition

volatiles, 50-80%

bp

100 °C/1 atm

solubility

H2O: miscible at 20 °C

Quality Level

100

Related Categories

General description

Nickel compatible gold etchant is an etching solution that can be used in the removal of the gold layer from the surface. Compatibility of gold etchants with nickel allows it to be utilized in applications where nickel is used as a dominant material in the fabrication of micro-electro-mechanical systems (MEMS).

Application

Elective general-purpose etchant for gold. Compatible with negative and positive photoresists.

Features and Benefits

Etching readily controlled with minimum undercutting. Room temperature operated. Cyanide-free, no attack of nickel films.

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H372

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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX1218
MKCW7571
MKCT3850
MKCR3770
MKCR8952

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Micro-elastometry on whole blood clots using actuated surface-attached posts (ASAPs)
Judith RM, et al.
Lab on a chip, 15(5), 1385-1393 (2015)
A monolithic micro-optical interferometer deep etched into fused silica
Weigel C, et al.
Microelectronic Engineering, 174(5), 40-45 (2017)
Determination of young's modulus of electrochemically co-deposited Ni-Al2O3 nanocomposite
Wei X, et al.
Materials Letters, 62(12-13), 1916-1918 (2008)

Protocols

Negative Photoresist Procedure

Photoresist kit offers pre-weighed chemical components for lithographic processes, with separate etchants for various substrate choices.

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