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PCB circuit board price and matters needing attention
2021-10-09
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Author:Frank

PCB circuit board price and matters needing attention
  How much is the price of PCB circuit board? First of all, we need to know the following information about the main production materials of PCB circuit board. The price of PCB circuit board is 100% according to the manufacturing level: IPC-6012 class2-PCB manufacturing standard IPC-Class II
  
   1. Factors affecting the price of PCB circuit boards:
  
  1, size: mm×mm;
  
  2, material material: Fr4 135℃;
  
  3, thickness: 0.8mm, 1mm, 1.6mm, tolerance ±10%;
  
  4, the number of layers: 1,2,4,6,8;
  
  5. Soldermask colour: green; silk colour: white
  
  6, surface finish:
  
  1) Immersion gold, also called electroless nickel gold or immersion gold (Electroless Nickel Immersion Gold), refers to a process of applying solderability coating on the surface of bare copper of PCB

  2) HASL spray tin
  
  3) immersion siver
  
  4)OSP anti-oxidation treatment
  
  5) Chemical gold (gold plated), also called electroplating gold, is a process of metal accumulation through a controlled oxidation-reduction reaction under the catalysis of metal.
  
  6) gold finger
  

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Immersion gold and chemical gold difference: Immersion gold has low cost and good weldability; chemical gold (gold-plated) has a lubricating appearance, good adhesion of gold, and wear resistance. It is determined that soldering tin is not as good as immersion gold, and it is generally used for non-welding On contact points, such as gold fingers.
  
   Immersion gold is more commonly used on demanding boards. Immersion gold is more expensive than lead free HASL.
  
   Lead-free tin spray is more commonly used on general boards. Lead-free tin spray is also known as hot air leveling. The price is cheap and the flatness is not as good as gold.
  
  7, copper weight/ copper thickness: 1Oz,2Oz = 35μm,70μm
  
  8, line width: 0.1mm = 4mil, normal>=0.1mm, the wider the better, the line space: 0.1mm = 4mil, normal>=0.1mm, the wider the better
  
  9, via diameter: 0.2mm, >0.2mm cheap
  
  10, no impedance impedence control
  
   2. The price of special PCB circuit boards is slightly higher, so special attention must be paid to:
  
  Data: HiTg FR4 (Fr4 Tg170℃), Fr1, CAM3; Ink color and silk screen color: According to customer requirements; Copper thickness: 3Oz, 4Oz; Line width and line spacing: <0.1mm, with impedance, with blind holes. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. With more than ten years of experience in this field, we are committed to meeting the needs of customers from different industries in terms of quality, delivery, cost-effectiveness and any other demanding requirements. As one of the most experienced PCB manufacturers and SMT assemblers in China, we are proud to be your best business partner and good friend in all aspects of your PCB needs. We strive to make your research and development work easy and worry-free.