Anti-corrosion circuit board and manufacturing method thereof
A production method and circuit board technology, which is applied in the fields of printed circuit manufacturing, printed circuit, printed circuit, etc., can solve the problems of being corroded by other objects, reducing the scope of use and service life, and poor waterproof performance of circuit boards, so as to improve corrosion resistance performance, improve the range of use and service life, and achieve the effect of waterproof effect
Inactive Publication Date: 2022-02-11
深圳市联创电路有限公司
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Problems solved by technology
[0004] But the existing circuit board also has the following disadvantages: 1. The corrosion resistance of the existing circuit board is not good, and it is easily corroded by other objects during use, thereby reducing its scope of use and service life; 2. The current circuit board After production, the waterproof performance of the circuit board is poor, and it is easy to affect the performance of electronic components
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[0033] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained in the preparation of creative labor.
[0034] See Figure 1-2 As shown, an anti-corrosion circuit board includes a substrate layer 1, and a dry strip layer 2 is provided at the lower end of the substrate layer 1. The lower end of the drying strip layer 2 is provided with a discolored silica gel layer 3, and the lower end of the discolorous silicone layer 3 is provided with a waterproof film layer 7. The upper end of the substrate layer 1 is coated with a polyvinyl chloride coating 4, and the upper end of t...
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Abstract
The invention discloses an anti-corrosion circuit board and a manufacturing method thereof, and the circuit board comprises a substrate layer, the lower end of the substrate layer is provided with a drying strip layer, the lower end of the drying strip layer is provided with an allochroic silica gel layer, the lower end of the allochroic silica gel layer is provided with a waterproof film layer, and the upper end of the substrate layer is coated with a polyvinyl chloride coating. The upper end of the polyvinyl chloride coating is coated with a coal tar enamel layer, the upper end of the coal tar enamel layer is coated with a chlorosulfonated polyethylene coating, the thicknesses of the chlorosulfonated polyethylene coating, the polyvinyl chloride coating, the coal tar enamel layer and the chlorosulfonated polyethylene coating are the same, and the thickness of the chlorosulfonated polyethylene coating is 80-150 microns. An anti-corrosion layer comprising the polyvinyl chloride coating, the coal tar enamel layer and the chlorosulfonated polyethylene coating is sprayed on the substrate, the purpose of three-layer corrosion prevention of the circuit board can be achieved, the application range of the circuit board is widened, the service life of the circuit board is prolonged, and the waterproof effect of the circuit board body is achieved through cooperation of an arranged waterproof film, a drying strip and allochroic silica gel.
Description
Technical field [0001] The present invention belongs to the technical field of board, and more particularly to an anti-corrosion circuit board and a method of making it. Background technique [0002] The name of the board is: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB plate, aluminum substrate, high frequency board, thick copper plate, impedance plate, PCB, ultra-thin circuit board, super Thin circuit board, printing (copper etching technology) circuit board, etc. The board makes the circuit mini, intuitive, and plays an important role in the batch production and optimization of the fixed circuit. Circuit boards can be called printed wiring boards or printed circuit boards, and the English name is (Print Circuit Board) PCB, (Flexible Printed Circuit Board) FPC Circuit Board (FPC circuit board, said flexible circuit board flexible circuit board is polyimide Or a polyester film is made of a substrate having a hig...
Claims
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IPC IPC(8): H05K3/28
CPCH05K3/282H05K3/285H05K2201/0195H05K2203/1377
Inventor 黄春琴李炜炜付华峰
Owner 深圳市联创电路有限公司