| abstract |
The invention discloses a chip packaging cap opening process, which comprises the following steps: the method comprises the following steps: preparing a reagent; step two: carrying out chemical reaction; step three: ultrasonic cleaning; step four: and (5) observing and detecting. In the chip packaging and cap opening process, concentrated sulfuric acid and fuming nitric acid are uniformly mixed according to the volume ratio of 2:3, wherein the concentration of the concentrated sulfuric acid is 98%, the concentration of the fuming nitric acid is 95%, and other parts in a chip can not be influenced while the chip plastic packaging shell is removed; the chip with the cap opened is firstly put into water, ultrasonically cleaned for 10 seconds, then put into acetone, ultrasonically cleaned for 10 seconds, residues after chemical reaction are thoroughly removed, and the cap opening effect is improved. |