37 Installation and servicing of the following machines and units - machines for manufacturing semiconductor substrates, silicon chips, wafers, liquid crystal display substrates, liquid crystal displays, semiconductor chips and/or solar cells; machines for drying, cleaning and/or etching silicon wafers for use in the manufacture of semiconductor chips; wet processing machines for use in the manufacture of semiconductor chips and wet processing machines for oxidation by diluted hydrofluoric and hydrochloric acid and for particle removal in an ammonia and hydrogen peroxide acid bath, all for use on semiconductor substrates and wafers, silicon wafers, liquid crystal display substrates, liquid crystal displays, solar cells; and drying units using nitrogen, alcohol vapors and/or mixtures thereof for use on semiconductor substrates and wafers, silicon wafers, liquid crystal display substrates, liquid crystal displays, solar cells, as machine parts; drying and wet processing units for the treatment of semiconductor substrates, silicon chips, wafers, liquid crystal substrates, liquid crystal displays, semiconductor wafers and solar cells as well as their surfaces
Trademark: 75408197
