Ps design backplane is the basic material for manufacturing PCB, commonly known as organic board. According to relevant public information, PS design backboard, whose chemical name is polystyrene, is a thermoplastic amorphous resin, which is colorless, odorless, tasteless, shiny, light and cheap, low in water absorption, good in coloring, stable in chemical properties, excellent in electrical insulation, especially high-frequency insulation, good in impact resistance, weather resistance and aging resistance, good in light transmittance, and resistant to general chemical corrosion, and more expensive than plexiglass (acrylic).