First, each box label to indicate the production date, warehousing time, shipping to first-in-first-out principle.
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Second, IC vacuum sealed packaging: IC production is completed, can not be immediately on the production line, then it must be stored in the warehouse. When storing, pay special attention to the impact of light and moisture on the IC, and the packaging of the IC is very important at this time. The IC should be packed in an antistatic bag, vacuumed when sealed, the ambient temperature should be less than 40 degrees, and the humidity should be less than 90%R.H.
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Third, after the IC packaging is unpacked, when entering the production process, the temperature of the SMT or help workshop should be controlled below 22 degrees, and the humidity is less than 60%R.H.
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Four, IC production rules: < 1 > After unpacking, IC should be used up within 48 hours. < 2 > The number of IC received per shift shall not exceed the number of production consumption on the shift. < 3 > The unwrapped IC should be placed in a dry environment.
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Fifth, the IC that is not used up after production should be repackaged and stored, and the IC should be vacuumed and dehumidified. The single chip computer is baked to remove the humidity, and the appropriate amount of desiccant is put into the packaging and stored in the dry cabinet.