Significance and requirements of semiconductor particle control

Semiconductors specifically refer to materials with conductivity between conductors and insulators at room temperature , Semiconductors in integrated circuits 、 Consumer electronics 、 communication system 、 Photovoltaic power generation 、 lighting 、 High power power conversion and other fields have applications , For example, diodes are devices made of semiconductors .

Physical definition of semiconductor

There are many forms of material existence , solid 、 Liquid 、 Gas 、 Plasma and so on . We usually treat materials with poor conductivity , Like coal 、 Intraocular lens 、 amber 、 Ceramics are called insulators . Metals with good conductivity, such as gold 、 silver 、 copper 、 iron 、 tin 、 Aluminum, etc. are called conductors . The material between conductor and insulator can be simply called semiconductor . Compared with conductors and insulators , The discovery of semiconductor materials is the latest , until 20 century 30 years , When the purification technology of materials is improved , The existence of semiconductors is really recognized by academia . Semiconductors are materials with conductivity between conductors and insulators at room temperature . Semiconductor refers to a kind of controllable conductivity , Materials ranging from insulator to conductor . From the perspective of science and technology and economic development Look at , Semiconductors affect people's daily work and life , until 20 century 30 In the s, this material was recognized by the academic circles .

Semiconductor classification and performance

①. Element semiconductor . Elemental semiconductors refer to semiconductors composed of single elements , Among them, silicon 、 Selenium research is relatively early .

②. Inorganic compound semiconductor . Inorganic compounds mainly form semiconductor materials through single elements , Of course, there are also semiconductor materials composed of many elements. This half of the conductor is mainly used in high-speed devices ,InP Transistors are made faster than other materials , Mainly used in optoelectronic integrated circuits 、 In anti nuclear radiation devices . For materials with high conductivity , It is mainly used for LED Other aspects .

③. Organic compound semiconductor . Organic compounds refer to compounds containing carbon bonds in molecules , Put organic compounds perpendicular to carbon bonds , The superposition method can form the conduction band , Through chemical addition , It can enter the energy band , This can cause conductivity , Thus, organic compound semiconductors are formed .

④. Amorphous semiconductor . It is also called amorphous semiconductor or glass semiconductor , It belongs to a class of semiconducting materials .

⑤. Intrinsic semiconductor ： Semiconductors without impurities and lattice defects are called intrinsic semiconductors . At a very low temperature , The valence band of semiconductors is full , After being excited by heat , Some electrons in the valence band will cross the forbidden band and enter the empty band with higher energy , Electrons in the empty band become the conduction band , The absence of an electron in the valence band forms a positively charged vacancy , It's called a hole .

Plody 0.1 Micron liquid particle counter 、 Electronic semiconductor cleanliness detector can be used for cleaning agents 、 semiconductor 、 Ultra pure water 、 Electronic products, 、 Mobile phone glass 、 plate glass 、 Online particle monitoring and analysis of silicon wafer and other products , At present, it is an important product of British plody analysis and testing group for micro nano combination detection in the field of water quality .
　　
　　 Product advantage ：
　　
　　 application ： Innovative oil-water dual system 、 Multi purpose 、 Multi module condition ;
　　
　　 technology ： Application of the seventh generation double laser narrow light detection technology ;
　　
　　 Software ： Analyze, test and calibrate the measurement phase separation to eliminate interference ;
　　
　　 Output ：IPAD Data acquisition technology using ;
　　
　　 standard ： Separation of civil standards and special standards .
　　
　　 Online advantages ： Cleaning agent 、 semiconductor 、 Ultra pure water 、 Electronic products, 、 Mobile phone glass 、 plate glass 、 Online particle monitoring and analysis of silicon wafer and other products , All are PMT-2 The classic application place of micro nano monitor , And it is an important part of the production line . On-line 、 Continuous sampling 、 Alarm prompt , Be able to master the diagnosis and trend of particle pollution .
　　 Offline advantage ： Mobile measurement and fixed measurement of particle size and how many dual-mode , Solve the production process problem of continuous tracking and monitoring , Whether you are measuring or cleaning, tracking and monitoring , Will provide you with a perfect test plan , Make your test faster .
　　0.1 Product introduction of micron liquid particle counter ：
　　0.1 Micron liquid particle counter 、 Electronic semiconductor cleanliness detector can measure the particle size of liquid 、 Monitoring and analysis of cleanliness and pollutants ; Cleaning agent 、 Liquid medicine 、 Test of insoluble particles in pure solution and ultra pure water .
　　0.1 Micron liquid particle counter 、 The electronic semiconductor cleanliness detector adopts the core technology of British plody —“ Micro laser measurement of particles ”, And adopt classic methods , Built in users need a variety of Standards .