PCB News - Take you to understand the professional terms commonly used in PCB

Take you to understand the professional terms commonly used in PCB

Professional terms are commonly used in international conventions and are used in all walks of life. In different industries, the use of professional terminology is also different. As a manufacturer specializing in the production of PCB circuit boards, the editor of the PCB factory will give you a popular science knowledge point about the terminology commonly used in PCB. Let us look at it below. Look at it.

1. FR1: A PC film with high insulation level, high flame-retardant level and good temperature resistance, which is easy to fold, bend, and easy to process and shape. However, the PC film cannot be electroplated or sprayed with tin, and can withstand a high temperature of 105°C.

2. FR2: A paper core phenolic resin copper clad laminate, which cannot be electroplated or sprayed with tin, and can withstand high temperatures of 130°C

3. CEM1: An epoxy glass cloth paper-based sheet, which belongs to broken glass fiber.

4. CEM3: A paper core epoxy resin copper clad glass fiber board, which belongs to a whole piece of glass fiber, and is generally used to produce single-sided boards.

5. FR4: An epoxy resin copper-clad glass cloth board, which belongs to a whole piece of glass fiber, and is generally used to produce double-sided and multi-layer boards;

6. Electroplating: The process of plating a thin layer of other metals or alloys on some metal surfaces using the principle of electrolysis to improve wear resistance, conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics.

7. Tin spraying: refers to immersing the PCB board in the molten solder pool, so that all exposed copper surfaces will be covered by solder, and then using a hot air cutter to remove the excess solder on the PCB board, that is, hot air leveling .

8. Silk screen: Simply put, it means to print characters on the PCB according to customer requirements. Generally, the default character color is white.

9. Green oil: green solder resist, long-term protection of the formed circuit pattern.

10. Shape cutting: also called V cutting, milling is also called gong board

The above is the "PCB commonly used professional terms" compiled by the editor. I hope it will be helpful to you. iPCB is a high-tech manufacturing enterprise focusing on the development and production of high-precision PCBs. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. Mainly focus on microwave high frequency PCB, high frequency mixed pressure, ultra-high multi-layer IC testing, from 1+ to 6+ HDI, Anylayer HDI, IC Substrate, IC test board, rigid flexible PCB, ordinary multi-layer FR4 PCB, etc. Products are widely used in industry 4.0, communications, industrial control, digital, power, computers, automobiles, medical, aerospace, instrumentation, Internet of Things and other fields. .