a chemical used to etch designs into metal, glass, or other material
Word origin
[1925–30; etch + -ant]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: Nazi, gimmick, off-line, recycle, turnaround-ant is a suffix forming adjectives and nouns from verbs, occurring originally in Frenchand Latin loanwords (pleasant; constant; servant) and productive in English on this model; -ant has the general sense “characterized by or serving in the capacity of” that namedby the stem (ascendant; pretendant), esp. in the formation of nouns denoting human agents in legal actions or otherformal procedures (tenant; defendant; applicant; contestant). In technical and commercial coinages, -ant is a suffix of nouns denoting impersonal physical agents (propellant; lubricant; deodorant). In general, -ant can be added only to bases of Latin origin, with a very few exceptions, as coolant
Examples of 'etchant' in a sentence
etchant
By using polyacrylic acid, sulphated with sulphuric acid as etchant, abundant crystal growth was demonstrated.
Kapoor D, Mahendru D, Sharma V, Tandon P 2005, 'Photographic appraisal of crystal lattice growth technique', Journal of Indian Society of Pedodontics and Preventive Dentistryhttp://www.bioline.org.br/request?05043. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The parameters considered in this analysis are concentration of etchant, etching time, and etchant temperature.
Nitin D. Misal, Mudigonda Sadaiah 2017, 'Investigation on Surface Roughness of Inconel 718 in Photochemical Machining', Advances in Materials Science and Engineeringhttp://dx.doi.org/10.1155/2017/3247873. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Then the slice samples are etched by potassium permanganate etchant.
Zexiang Shi, Xiaohong Zhang, Kun Wang, Junguo Gao, Ning Guo 2017, 'Investigation on electrical tree propagation in polyethylene based on etching method',AIP Advanceshttp://dx.doi.org/10.1063/1.4994941. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The process parameters of etchant concentration, temperature, etching time and pattern size have been investigated.
Han Lu, Hua Zhang, Mingliang Jin, Tao He, Guofu Zhou, Lingling Shui 2016, 'Two-Layer Microstructures Fabricated by One-Step Anisotropic Wet Etching of Si inKOH Solution', Micromachineshttp://www.mdpi.com/2072-666X/7/2/19. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The application of such etchant has allowed the qualitative characterization of the microstructure.
Vander-Voort, G. F., Asensio-Lozano, J., Suárez-Peña, B. 2010, 'Metalografía a color en aleaciones Al-Si comerciales. Optimización de las técnicasde caracterización microestructural mediante microscopía óptica de reflexión', Revista de Metalurgiahttp://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/1137/1149. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The post-process involves only one maskless etching step using an etchant to remove the sacrificial layer.
Chi-Yuan Lee, Ching-Liang Dai, Cheng-Chih Hsu, Pin-Hsu Kao 2009, 'Fabrication and Characterization of a Tunable In-plane Resonator with Low DrivingVoltage', Sensorshttp://www.mdpi.com/1424-8220/9/3/2062/. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
To reduce the required time, a technique of dripping the etchant on the sample was also devised.
Chisato Anai, Nobutatsu Mochizuki, Hidetoshi Shibuya 2018, 'Reductive chemical demagnetization: a new approach to magnetic cleaning and a casestudy of reef limestones', Earth, Planets and Spacehttp://link.springer.com/article/10.1186/s40623-018-0954-x. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The main objective was to evaluate the performance of the etchant based on the silicon surface reflectance.
Eyad Abdur-Rahman, Ibrahim Alghoraibi, Hassan Alkurdi 2017, 'Effect of Isopropyl Alcohol Concentration and Etching Time on Wet Chemical AnisotropicEtching of Low-Resistivity Crystalline Silicon Wafer', International Journal of Analytical Chemistryhttp://dx.doi.org/10.1155/2017/7542870. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The optimization of etchant parameters in wet etching plays an important role in the fabrication of semiconductor devices.
Siti Noorhaniah Yusoh, Khatijah Aisha Yaacob 2016, 'Effect of tetramethylammonium hydroxide/isopropyl alcohol wet etching on geometryand surface roughness of silicon nanowires fabricated by AFM lithography', Beilstein Journal of Nanotechnologyhttps://doi.org/10.3762/bjnano.7.138. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)