OXIDES OF METALS AND SEMI-METALS AND MIXED PHASES THEREOF, SILICIC ACID ESTERS, SILICA, AMORPHOUS SILICA, POROUS SILICA AND SINTERED SILICA, ALL FOR MANUFACTURING USE IN THE CHEMICALS, GLASS, CERAMICS, INSULATION, ENGINEERING, ELECTRONICS, MOULD MAKING, SEMI-CONDUCTOR, MICROCHIP AND PHOTOVOLTAIC INDUSTRIES

ELECTRICAL APPARATUS FOR USE IN THE DETECTION OF GAS POROSITY IN MOLTEN METAL

Treatment of materials, namely, chemical treatment, chemical etching and chemical processing of materials including semiconducting materials; processing semiconductor wafers by chemical etching and electrochemical etching; custom manufacture of semiconductor components, devices and circuits; chemical, electrochemical and photoelectrochemical treatment of semiconductors; processing of light emitting diodes (LEDs) and LED chips by means of chemical etching and electrochemical etching; treatment...

Custom manufacture of semiconductor wafers; Custom manufacture of semiconductor components, devices and circuits; Chemical, electrochemical and photoelectrochemical treatment of semiconductors; Treatment of materials, namely, chemical treatment, chemical etching and chemical processing of materials including semiconducting materials; Processing semiconductor wafers by chemical etching and electrochemical etching