Single Sided Printed Circuit Boards from China Suppliers | High-Quality Factory Manufacturing
Product Application
Almost all electronic devices we can see with a single sided PCB cannot do without it, from small electronic watches, calculators, general-purpose computers, to large computers, communication electronic devices, military weapon systems, as long as there are electronic components such as integrated circuits, PCB is used for electrical interconnection between them. It provides mechanical support for the fixed assembly of various electronic components such as integrated circuits, realizes wiring and electrical connections or insulation between various electronic components such as integrated circuits, and provides the required electrical characteristics, such as characteristic impedance. Simultaneously providing solder mask graphics for automatic soldering; Provide identification characters and graphics for component insertion, inspection, and maintenance.
Single Sided PCB Production Process
The standard manufacturing sequence for a single-sided PCB flows as follows:
- 1Single sided copper clad board
- 2Blanking
- 3Brushing, drying
- 4Drilling or punching
- 5Screen printing of anti etching patterns or using dry film
- 6Curing inspection and repair
- 7Etching of copper
- 8Removing anti etching materials, drying
- 9Brushing, drying
- 10Screen printing of solder mask patterns (commonly used green oil), UV curing
- 11Screen printing of character marking patterns, UV curing
- 12Preheating, punching, and appearance
- 13Electrical opening and short circuit testing
- 14Brushing Drying
- 15Pre coating with welding aids and oxidation inhibitors (drying) or tin spraying with hot air for leveling
- 16Inspection of packaging
- 17Delivery of finished products
Characteristics of Single Sided PCB Board
Due to the excellent adhesion between epoxy resin and copper foil, the adhesion strength and working temperature of copper foil are high, and it can be immersed in soldering at 260 ℃ without foaming. Epoxy resin impregnated glass cloth laminates are less affected by moisture. The most excellent material for ultra-high frequency printed circuits is copper foil polytetrafluoroethylene glass cloth laminate. On electronic devices with flame retardant requirements, flame-retardant copper-clad laminates are also used. The principle is to impregnate insulating paper or glass cloth with non combustible or non combustible resin, so that the produced copper-clad phenolic paper laminates, copper-clad epoxy paper laminates, copper-clad epoxy glass cloth laminates, and copper-clad epoxy phenolic glass cloth laminates not only have similar performance to similar copper-clad laminates, but also have flame retardancy.
