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Non-HF Type Etching Solution for Slimming of Flat Panel Display Glass
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  • Journal title : Applied Chemistry for Engineering
  • Volume 27, Issue 1,  2016, pp.101-109
  • Publisher : The Korean Society of Industrial and Engineering Chemistry
  • DOI : 10.14478/ace.2016.1005
 Title & Authors
Non-HF Type Etching Solution for Slimming of Flat Panel Display Glass
Lee, Chul-Tae;
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 Abstract
The purpose of this research was to develop a flat panel display device`s glass etchant which can replace hydrofluoric acid. The glass etchant was composed of 18~19% wt% of ammonium hydrogen fluoride, 24~25 wt% of sulfuric acid, 45~46 wt% of water, 4~5 wt% of sulfate and 7~8 wt% of fluoro-silicate. By replenishing the etchant which has the amount of 5% of initial solution`s mass, it was possible to reuse the etchant continuously. The developed etchant showed of etching rate at . The reusable etchant, with replenishing 5% of initial etchant mass showed the stable etching rate, which has the deviation of less than etching rate. The glass surface of flat panel display device created from our etching process was in good condition with any defects such as pin hole and dimple.
 Keywords
non-hydrogen fluoride;etching;glass slimming;flat pannel disply;
 Language
Korean
 Cited by
 References
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