[Class : 1] Chemical Slurries For Abrading Semiconductor For Industrial Purposes; Chemical Preparations For Use In Industry; Chemical Source Material For The Deposition Of Thin Films Upon Semiconductor Wafers For The Manufacture Of Semiconductors; Gas For Processing Semiconductor; Organic Industrial Chemicals; Industrial Chemicals For Use In Planarization Of Semiconductor Wafers; Compositions For The Manufacture Of Technical Ceramics; Silicon Carbide For Industrial Purposes; Silicon Carbide (Raw Material); Boron Carbide; Inorganic Industrial Chemicals; Silica Powder; Alumina; Ceramic Compositions For Sintering (Granules And Powders); Ceramic Matrix Composite (Cmc) Materials For Use In Manufacture; Detergents For Use In The Manufacture Of Semiconductors; Etchants For Use In The Manufacture Of Semiconductors.