This article describes the characteristics of the sensors.
With the development of science and technology, the production and processing of many industrial products puts forward high requirements on the dust concentration in the dust-free workshop engineering of the production environment, which requires the production environment to have a certain level of air cleanliness and control the production process. The quality of the supply of related substances. For example, in film production, if the film is contaminated by dust, the emulsion will oxidize, the activity will be weakened, and the pH will change, which will affect the film's photosensitive performance.
The integrated circuit manufacturing industry is an industry that uses ultra-pure materials for ultra-fine processing in an ultra-pure environment. The purification of semiconductor materials is an important basis for the development of semiconductor devices. Due to the process requirements of large-scale and very large-scale integrated circuits, in order to obtain high-purity silicon materials, the high purity of raw materials and intermediates and the cleanliness of the production environment of high-precision constant temperature and humidity engineering have become a prominent problem affecting product quality.
The yield of integrated circuit chips is related to the defect density of the chip, and the defect density of the chip is related to the number of particles in the air. Therefore, the rapid development of integrated circuits not only has high requirements for controlling the size of particles in the air, but also needs to further control the number of particles; at the same time, it is also relevant for the chemical pollution control of dust-free workshop projects in the VLSI production environment. Claim.
The main pollutants that may be exposed during the production of integrated circuits
The main pollution that may be encountered in the production of integrated circuits are: particulate impurities, inorganic ions, organic substances, microorganisms, and gas impurities. Broadly speaking, unsuitable temperature, humidity, illuminance, excessive static electricity, electromagnetic noise, air noise, and micro-vibration are also special pollutants. Among them, when the amount of particulate impurities, inorganic ions, organic substances, microorganisms, and gas impurities exceeds a certain limit, it will cause surface scratches, pattern disconnections, short circuits, pinholes, and peeling of integrated circuit products, resulting in circuit leakage, The electrical characteristics are abnormal. The lighter ones affect the circuit performance and service life, and the more serious ones can cause the circuit to be scrapped.
In view of this situation, it is necessary to use dust sensors to monitor the environment of the semiconductor integrated circuit production workshop to ensure that the product production environment meets clean standards. Gongcai.com recommends the use of Korean syhitech dust sensor/dust sensor-DSM501.
Dust sensor DSM501 can sense smoke and pollen produced by tobacco, house dust, etc., heating automatic air intake device, adjustable resistance setting to detect the size of dust. Based on the same principle as the particle calculator, the number of particles per unit volume is detected.
Dust sensor/dust sensor/PM2.5 sensor DSM501 characteristics:
1. Dust sensor DSM501 can sense smoke and pollen produced by tobacco, house dust, etc.
2. Small particles above 1 micron.
3. Small size, light weight, easy to install.
4. 5V input circuit is convenient for signal processing.
5. The built-in airflow generator can attract the outside atmosphere by itself.
6. Maintenance is simple, and the characteristics of the sensor can be maintained for a long time.
This article is from HONG DA (HK) ELECTRONICS which offer electronic components, semiconductors, antennas, capacitors, connectors, diodes, transistors, IC,resistors. For more product information, please go to the website to get it.