Selective etching of AlInN/GaN heterostructures for MEMS technology

E Sillero, D López-Romero, F Calle, M Eickhoff… - Microelectronic …, 2007 - Elsevier
An etching technology for the patterning of suspended GaN structures on lattice matched
AlInN sacrificial layers is studied. Selective dry RIE etching of GaN to AlInN is demonstrated …

Selective wet etching of lattice-matched AlInN–GaN heterostructures

F Rizzi, K Bejtka, PR Edwards, RW Martin… - Journal of crystal …, 2007 - Elsevier
Wet etching of AlInN–GaN epitaxial heterostructures, containing AlInN layers with InN mole
fractions close to 0.17 has been studied. One molar aqueous solution of the chelating amine …

Electrochemical etching of AlGaN for the realization of thin-film devices

MA Bergmann, J Enslin, R Yapparov, F Hjort… - Applied Physics …, 2019 - pubs.aip.org
Heterogeneously integrated AlGaN epitaxial layers will be essential for future optical and
electrical devices like thin-film flip-chip ultraviolet (UV) light-emitting diodes, UV vertical …

Isotropic dry-etching of SiC for AlGaN/GaN MEMS fabrication

F Niebelschutz, J Pezoldt, T Stauden… - 2008 Conference on …, 2008 - ieeexplore.ieee.org
We present an isotropic fluorine based process to etch 4H-SiC substrates compatible with
standard metallic etch masks and reasonable etching rates. Additionally, a new masking …

Smooth wet etching by ultraviolet-assisted photoetching and its application to the fabrication of AlGaN/GaN heterostructure field-effect transistors

H Maher, DW DiSanto, G Soerensen… - Applied Physics …, 2000 - pubs.aip.org
We characterize a KOH-based ultraviolet UV photoassisted wet etching technique using
K2S2O8 as the oxidizing agent. The solution provides a well-controlled etch rate and …

Electrodeless wet etching of GaN assisted with chopped ultraviolet light

ZH Hwang, JM Hwang, HL Hwang, WH Hung - Applied Physics Letters, 2004 - pubs.aip.org
Electrodeless photoelectrochemical (PEC) etching of GaN was studied in a K2S2O8/KOH
solution irradiated with ultraviolet (UV) light either continuously or periodically. The rate of …

Fabrication of GaN suspended microstructures

RP Strittmatter, RA Beach, TC McGill - Applied Physics Letters, 2001 - pubs.aip.org
We report on a versatile processing technology for the fabrication of micro-
electromechanical systems in gallium nitride (GaN). This technology, which is an extension …

Atomic layer etching technique for InAlN/GaN heterostructure with AlN etch-stop layer

F Du, Y Jiang, Z Qiao, Z Wu, C Tang, J He… - Materials Science in …, 2022 - Elsevier
An atomic layer etching (ALE) technique for InAlN/AlN/GaN structure was investigated for the
first time. Different recipes with O 2 modification times of 30–180 s and BCl 3 removal RF …

The Atomic Layer Etching Technique with Surface Treatment Function for InAlN/GaN Heterostructure

F Du, Y Jiang, Z Wu, H Lu, J He, C Tang, Q Hu, K Wen… - Crystals, 2022 - mdpi.com
This paper studied an atomic layer etching (ALE) technique with a surface treatment function
for InAlN/GaN heterostructures with AlN spacer layers. Various parameters were attempted …

Wet etching and its application to the fabrication and characterization of AlGaN/GaN HFETs

H Maher, D DiSanto, G Soerensen… - … 2000 IEEE/Cornell …, 2000 - ieeexplore.ieee.org
We have developed a simple and reproducible UV photo-assisted wet etching process
which can be carried out near room temperature and which does not appreciably degrade …