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