chemicals; namely, hydrofluoric acid, ammonium fluoride, aqueous solutions, buffered hydrogen fluoride, buffered hydrogen fluoride with surfactants, low ammonium buffered hydrogen fluoride and low ammonium buffered hydrogen fluoride with surfactants for use in the field of semiconductors and the surface treatment of stainless and frosted glass

'acid':4 'ammonium':5,18,24 'aqueous':7 'buffer':9,12,19,25 'chemic':1 'field':34 'fluorid':6,11,14,21,27 'frost':44 'glass':45 'hydrofluor':3 'hydrogen':10,13,20,26 'low':17,23 'name':2 'semiconductor':36 'solut':8 'stainless':42 'surfac':39 'surfact':16,29 'treatment':40 'use':31

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