TECHXIV

Silicon; silicon plates; silicon bars; polycrystal silicon; single crystal silicon ingots; semi-conductor silicon ingots; single crystal silicon ingots for integrated circuits; non-ferrous metals

Non ferrous metal and their alloys; ingots of common metal

Semi-conductors; semi-conductor wafers; semi-conductor silicon wafers; crystal silicon wafers; optical glasses

Crystallizing of silicon; slicing of semi-conductor silicon ingots; slicing of single crystal silicon ingots; slicing of metal ingots; cutting of semi-conductor wafers; cutting of semi-conductor; metal cutting; grinding of semi-conductor wafers; grinding of semi-conductor; grinding of metals; polishing of semi-conductor wafers; polishing of semi-conductor; polishing of metals; grinding; burnishing by abrasion; glass polishing; etching of semi conductor wafers; etching of semi-conductor; etching of metals; beveling of semi-conductor wafers; treatment in the nature of cleaning of semiconductor wafers; treatment in the nature of cleaning of semi-conductor; surface treatment of semi conductor wafers by epitaxial growth; surface treatment of semi-conductor wafers by vapor deposition for forming thin films; impurity diffusion, namely, heat treatment and coating of semi-conductor wafers for forming diffusion layers; metalwork, namely, metal casting and metal plating; metal treating; ceramic processing; glass processing; cutting of glass; grinding of glass