PCB circuit board terminology, you recognize a few it

The so-called terminology, is to refer to a specific field of some specific things of the unified industry designation. These titles are common in international practice, communication is very convenient, so the terminology used in various industries, and different industries, terminology is naturally different, as a professional PCB circuit board manufacturers, Jiubao Circuit editorial to give you a popularization of the terminology of the PCB industry, I believe that we will look at it will be gained.

The materials used to make circuit boards are usually XPC, FR1, FR2, CEM1, CEM3 and FR4, XPC, paper core, and no 94-VO fire marking. Let's look at what each of them stands for:

1, FR1, is an insulating flame retardant PC film, high insulation grade, good temperature resistance, high flame retardant level, with easy folding, bending, processing and molding characteristics. It can not be plated, sprayed tin, high temperature resistance of 105 degrees Celsius.

2, FR2, paper core phenolic resin copper-clad board, can not be plated and spray tin, high temperature resistance of 130 degrees Celsius.

3, CEM1, epoxy glass cloth paper-based sheet, belonging to the broken glass fiber.

4、CEM3, paper core epoxy resin copper-clad fiberglass board, belongs to the whole glass fiber, generally used in the production of single-panel.

5、FR4, epoxy resin covered with copper glass cloth board, belongs to the whole glass fiber, generally used in the production of double-sided board and multi-layer board;

6, electroplating, the use of electrolytic principles in certain metal surfaces plated with a thin layer of other metals or alloys of the process, to improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance the aesthetic.

7, tin spray, specifically the PCB board is immersed in a pool of molten solder, so that all the exposed copper surface will be covered by solder, and then through the hot air cutter will be PCB board excess solder removal, that is, hot air leveling.

8, silkscreen, is printed according to customer requirements on the characters, usually white;

9, green oil, is a green solder resist, long-term protection of the line formed by the graphics.

Here I would like to remind is that in the PCB manufacturing industry, only to do a better job of familiarizing yourself with and understanding these terminology, you can really learn to use. Shenzhen Jiubao Technology also provides professional and efficient PCB manufacturing services for the majority of users, professional quality is trustworthy.