Semiconductor devices are electrical devices manufactured using semiconductor elements. A semiconductor refers to a material whose electrical conductivity is between that of a conductor and an insulator at room temperature. Semiconductors are widely used in radios, televisions, and temperature measurement. For example, a diode is a device made of semiconductors. A semiconductor is a material whose conductivity can be controlled, ranging from insulators to conductors. Semiconductor equipment includes laser marking machine, laser inkjet printer, packaging machine, pure water machine, etc.

Classification of semiconductor materials Semiconductor materials can be roughly divided into the following categories according to their chemical composition and internal structure:

1. Compound semiconductors are semiconductor materials composed of two or more elements.

2. Amorphous semiconductor material Glass used as semiconductor is a kind of amorphous amorphous semiconductor material, which is divided into oxide glass and non-oxide glass.

3. Elemental semiconductors are germanium, silicon, selenium, boron, tellurium, antimony, etc.

4. Organic Inductor Materials There are dozens of known organic semiconductor materials, including naphthalene, anthracene, polyacrylonitrile, phthalocyanine and some aromatic compounds, etc., which have not yet been used.

type:

1. Discrete devices

1. Diode

A. For general rectification

B. For high-speed rectification:

①FRD (Aast Recovery Diode: high-speed recovery diode)

②HED (Figh Efficiency Diode: High-speed and high-efficiency rectifier diode)

③SBD (Schottky Barrier Diode: Schottky Barrier Diode)

C. Constant voltage diode (Zener diode)

D, high frequency diode

①Varactor diode

②PIN diode

③ Penetrating diode

④Crash diode/Gahn diode/Sudden varactor diode

2. Transistor

①Bipolar transistor

②FET (Fidld Effect Transistor: Field Effect Tube)

Ⅰ. Junction FET

Ⅱ.MOSFET

③IGBT (Insulated Gate Bipolar Transistor: Insulated Gate Bipolar Transistor)

3. Thyristor

①SCR (Silicon Controllde Rectifier: Silicon Controlled Rectifier)/Triac

②GTO (Gate Turn off Thyristor: gate light off thyristor)

③LTT (Light Triggered Thyristor: Light Triggered Thyristor)

2. Optoelectronic semiconductors

1. LED (Light Emitting Diode: Light Emitting Diode)

2. Laser semiconductor

3. Light receiving device

①Photo Diode/Solar Cell

②Photo Transistor

③CCD image sensor (Charge Coupled Device: Charge Coupled Device)

④CMOS image sensor (complementary Metal Oxide Semiconductor: complementary metal oxide film semiconductor)

4. Photocoupler (photo Relay)

①Photo relay (photo Relay)

②Photo Interrupter

5. Devices for optical communication

3. Logic IC

1. General logic IC

2. Micro Processor

①CISC (Complex Instruction Set Computer: Complex Command Set Computer)

②RISC (Reduced instruction SET Computer: Reduced instruction set computer)

3. DSP (Digital Signal processor: digital signal processing device)

4. AASIC (Application Specific integrated Circuit: special purpose IC)

①Gate-Array Device

②SC (Standard Cell: standard device)

③FPLD (Field programmable Logic Device: Field programmable logic device)

5. MPR (Microcomputer peripheral: Microcomputer peripheral LSI)

6. System LSI (System LSI)