Semiconductor Material & Fabrication Process for RF Transistors

Most of new RF & Microwave Engineer still confused with RF Semiconductor Materials & Process Technology and can't really differentiates them well.

Semiconductor Materials for example:

1. Silicon (Si)
   
2. Silicon Germanium (SiGe)
3. Gallium Arsenide (GaAs)
4. Gallium Nitride (GaN)
5. Silicon Carbide (SiC)

Transistor Fabrication Process for example:

1. Metal-Semiconductor FET (MESFET)
2. Bipolar Junction Transistor (BJT)
   
3. Heterojunction Bipolar Transistor (HBT)
4. Laterally Diffused Metal-Oxide Semiconductor (LDMOS)
5. High Electron Mobility Transistor (HEMT)
6. Pseudomorphic HEMT (pHEMT)
7. Enhanced-Mode pHEMT (E-pHEMT)