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Fiber Switch Pcb Board

Oct 31, 2018

Fiber switch pcb board 


               There are many factors affecting the price of the circuit board. Due to different PCB material, production process, difficulty, customer demand, region, payment method, manufacturer and other factors, the process cost of the circuit board is different, and the materials used in the circuit board are different, resulting in price diversity. 


                Talk about double-panel, the board generally has FR-4, CEM-3, etc., the thickness of the board varies from 0.6mm to 3.0mm, and the thickness of copper varies from 1⁄2Oz to 3Oz. These sheets have caused huge cost gaps. 


                In terms of soldering ink, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil, so the difference in materials causes price diversity.


                The different production processes used in PCBs result in different cost and different production processes that result in different costs. 


                For example, gold-plated plates and tin-plated plates, the shape of the boring (milling) plate and the beer (punching) plate, the use of silk screen lines and dry film lines will form different costs, resulting in price diversity. Price diversity caused by the difficulty of the PCB itself


               Even if the materials are the same and the process is the same, the difficulty of the PCB itself will result in different costs.


              For example, if there are 1000 holes on both boards, the hole diameter of one plate is larger than 0.6mm and the hole diameter of the other board is less than 0.6mm, which will form different drilling costs; 


               If the two boards are the same, but the line width is the same Different, one is greater than 0.2mm, and one is less than 0.2mm, which will also result in different production costs. Because the difficulty of the board is higher, the cost will increase, which will result in price diversity.


                Different customer requirements will also result in different prices. 


               The level of customer requirements will directly affect the yield of the board factory, such as a board according to IPC-A-600E (printed circuit board acceptance specification), class1 requires 98% pass rate, but press Class3 requirements may only have a 90% pass rate, which results in different costs for the board factory, which ultimately leads to variable product prices. 


                The price diversity caused by different PCB manufacturers. Even if the same product, different manufacturers will have different costs due to different process equipment and technical level. Nowadays, many manufacturers like to produce gold-plated plates. 


                Because of the simple process and low cost, some manufacturers produce gold-plated plates, and the scrap rate increases, resulting in higher costs. Therefore, they prefer to produce tin-plated plates, so their tin-plated plates offer instead. The gold plate is low.