Carbon oil printing process for circuit board
A circuit board and carbon oil technology, which is applied in the formation of conductive patterns and other directions, can solve the problems of strong fluidity and uneven thickness of photosensitive ink, high frequency of position use, micro-short circuit scrap, etc., to prevent the diffusion of carbon oil, improve reliability, The effect of not easily deforming the shape
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[0018] Embodiment: a kind of circuit board carbon oil printing process, the main process of this process comprises the following steps:
[0019] 1) Clean the circuit board surface. The surface cleaning of the circuit board is the pre-treatment of gold, which is mainly to clean the garbage and foreign matter (copper surface oxidation, grease or dust) on the surface of the circuit board, so as to ensure that the board surface is free of any foreign matter and pollution before silk screen printing. First, select a clean and intact 68T stencil; then wash the stencil with a high-pressure water gun. Wipe off the water droplets on the instant noodles with a cloth, and then put them in the oven to dry. The temperature of the oven is controlled at 45°C±5°C, and the baking time is controlled at 15-20min; Clean the dust roller to ensure that the screen is clean and dust-free.
[0020] 2) Premium film. Tilt the screen at 45°C and put it on the glue rack, spray the screen with a waterin...
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