Every time you see a circuit board, do you wonder: "Why do they almost all look the same?"

Actually— PCBs aren't naturally green - their base material is light yellow fiberglass, The color is actually determined by the top layer of "Solder Mask."

Why is Green So Popular? Several Reasons 👇

1️⃣ Most Comfortable for Vision

• Green is easiest on the eyes during long working hours
• Engineers examining boards are less likely to overwork (?)

2️⃣ Most Mature Manufacturing Process

• Green solder mask is the most stable
• Printing alignment, photoresist, and development are easier to control

3️⃣ Lower Cost

• Green materials are abundant with high demand
• Naturally the cheapest option～

4️⃣ Convenient for Inspection

• Green background with white text and copper traces provides high contrast
• Super easy to inspect

Other Color Options

Although red, blue, black, white, and even transparent boards are available now, For veterans in the field—"Green boards are the real classic!"