Is the circuit board only green? What are the functions of circuit boards of other colors?
Circuit board are not just green color. The green color on the circuit board is solder mask ink, whose main ingredients include resin, talcum powder and pigments. In addition to green, circuit board also come in white, red, yellow, black and other colors, but green is the most common in our daily lives.
Why are most circuit board green?
1. Green solder mask ink is one of the oldest, cheapest and most popular options.
2. The circuit board manufacturing process requires board making, SMT patching and other processes. A yellow light room is required during the board making process. Green has better visual effects in the yellow light room.
3. During the SMT welding process, soldering, patching and AOI verification are required. These procedures require optical positioning and alignment. Green background is more conducive to instrument identification.
4. In the past, blue and black inks were mixed with cobalt and carbon, which had a certain degree of conductivity and had the risk of short circuit. Green is relatively safe, so the habit of using green has remained.
What are the characteristics of white, blue, black and red circuit board?
1. Blue
Blue circuit board is also a common color, giving people a stable and professional feeling. Blue circuit board is usually suitable for main control boards or important circuit boards in electronic equipment to highlight the reliability and high quality of the product.
2.Black
Starting in 2007, ASUS and MSI began to use black circuit board as the design of high-end products, so people gradually believed that black circuit board represented high-end. As more and more manufacturers begin to use black circuit board coatings, black circuit board are considered to highlight the technological feel of products and are currently used in high-end consumer electronics equipment, such as smartphones and high-performance computers.
3.Red
Red is a very conspicuous and enthusiastic color, often used to highlight the functions or features of products. Often used in the design of high-speed signal transmission lines.
4.White
White circuit board looks clean and neat, and is also a very popular color in recent years. It is currently commonly used in computer motherboards, LED lights, etc.
The circuit board is only green. It can be made into white, red, blue, black and other colors according to different requirements.
