One-chip, two-chip and four-chip SIM card manufacturing method
A manufacturing method, four-chip technology, applied in contact manufacturing, electrical components, transmission systems, etc., can solve the problems of low card base utilization and waste, and achieve the effect of reducing installation, reducing cooling sections, and simplifying the manufacturing process
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[0034] The present invention will be further described below according to the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.
[0035] Such as figure 1 with figure 2 Shown, a kind of SIM card manufacturing method of one, two, four chips comprises the following manufacturing steps:
[0036] S1: SIM card slot milling process; including a large slot milling station and two small slot milling stations, the SIM card is transported from the conveyor line to the large slot milling station, and the SIM card is milled into a large slot. After the slot is processed, it enters the large slot cleaning station. The large slot cleaning station cleans the large slot with a brush. After the large slot cleaning is completed, the SIM card is transported to two small slot milling stations, and the SIM card is milled in two small slots. Groove treatment, after the two small grooves are finished, enter the small groove cleani...
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