Used for

• HEMTs (Transistors)
• HFETs (Transistors)
• Hetero-field-effect transistors
• High-electron-mobility transistors
• MODFETs (Transistors)
• SDHTs (Transistors)
• Selectively-doped heterojunction transistors
• TEGFETs (Transistors)
• Two-dimensional electron gas field-effect transistors