Classification and Performance of Semiconductors

　　Elemental semiconductor. Elemental semiconductor refers to a semiconductor composed of a single element, among which research on silicon and selenium was relatively early. It is a solid material composed of the same elements with semiconductor properties, which is susceptible to changes caused by trace impurities and external conditions. At present, only silicon and germanium have good performance and are widely used, while selenium is applied in the fields of electronic lighting and optoelectronics. Silicon is widely used in the semiconductor industry, mainly influenced by silicon dioxide, which can form masks in device fabrication, improve the stability of semiconductor devices, and facilitate automated industrial production.

The main methods of communication signal shielding include physical shielding, device shielding, and software shielding.

　　GPS jammers, mobile signal amplifiers, and concealed drone devices GPS jammers are used as personal vehicle anti tracking products to shield drone devices from some civilian grade drones on the market. It can cut off the image transmission channel to prevent the transmission of video aerial photos, protect a certain area, and prevent privacy from being disclosed

Industrial Control Brand Advantage

　　ABB: DSQC series of industrial robot spare parts (medium two three, medium four, S4C, S4C, IRC5), Bailey INFI90, etc; Westinghouse: OVATION system, WDPF system, MAX1000 system spare parts Invensys;