1. SEMICONDUCTOR ELECTRONICS
1.1. VACUUM TUBES
1.1.1. VACUUM TUBES (VALVES)
1.1.1.1. VACUUM DIODE
1.1.1.1.1. CATHODE
1.1.1.1.2. ANODE
1.1.1.2. VACUUM TRIODES
1.1.1.2.1. CATHODE
1.1.1.2.2. GRID
1.1.1.2.3. PLATE
1.1.2. DISADVANTAGES
1.1.2.1. BULKY
1.1.2.2. POWER LOSSES
1.1.2.3. HIGH VOLTAGE
1.1.2.4. BURNOUT
1.1.2.5. VACUUM CREATION
1.1.2.6. SMALL LIFETIME
1.2. SEMICONDUCTOR ADVANTAGES
1.2.1. SMALL IN SIZE
1.2.2. LONG LIFE
1.2.3. HIGH RELIABILITY
1.2.4. CONSUMES LOW POWER
1.2.5. OPERATED AT LOW VOLTAGES
1.2.6. NO EXTERNAL HEAT OR LARGE EVACUATED SPACE IS REQUIRED
1.2.7. CATHODE RAY TUBES (CRT) & COMPUTER MONITORS WHICH WORK ON THE PRINCIPLE OF VACUUM TUBES ARE REPLACED BY LIQUID CRYSTAL DISPLAY (LCD)
1.3. CLASSIFICATION OF SOLIDS (BASED ON STRUCTURE)
1.3.1. CRYSTALLINE SOLIDS
1.3.2. AMORPHOUS SOLIDS
1.4. CLASSIFICATION OF SOLIDS ( BASED ON ELECTRICAL PROPERTIES)
1.4.1. CONDUCTORS
1.4.2. INSULATORS
1.4.3. SEMICONDUCTORS
1.5. CLASSIFICATION
1.5.1. COMPOUND SEMICONDUCTORS
1.5.1.1. INORGANIC
1.5.1.1.1. CdS
1.5.1.1.2. CdSe
1.5.1.1.3. GaAs
1.5.1.1.4. InP
1.5.1.2. ORGANIC
1.5.1.2.1. ANTHRACENE
1.5.1.2.2. DOPE PTHALOCYANINES
1.5.1.3. ORGANIC POLYMERS
1.5.1.3.1. POLYPYRROLE
1.5.1.3.2. POLYANILINE
1.5.1.3.3. POLYTHIOPHENE
1.5.2. ELEMENTAL SEMICONDUCTORS
1.5.2.1. SILICON
1.5.2.2. GERMANIUM