Disassembly method of integrated circuit

By 3M 275

Disassembly method of integrated circuit

General disassembly method of integrated circuit
(1) Disassembly method of medical needle

Requires the inner diameter of the needle to be slightly larger than the diameter of the integrated circuit pins. The specific disassembly method: first use a pointed soldering iron to melt the solder on a pin, then insert the needle and remove the soldering iron. Then rotate the needle to cut the solder between the lead and the copper foil. After cutting the solder on the pins one by one, the integrated circuit can be removed from the circuit board.

(2) Disassembly method of tin suction device

Remove the integrated block by using a solder sucker. This is a commonly used professional method. The tool is an ordinary soldering iron for welding and soldering. The power is above 35W. When disassembling the integrated block, as long as the heated dual-purpose electric iron head is placed on the pin of the integrated block to be disassembled, the solder at the soldering point is melted and sucked into the solder sucker. After the solder of all the pins is absorbed, the integrated block is Can be removed.

(3) Disassembly method of electric iron brush

When disassembling the integrated block, first heat the electric soldering iron. After the melting temperature is reached to melt the solder on the pins, take advantage of the brush to remove the molten solder, so that the pins of the integrated block can be separated from the printed board. Finally, pry off the manifold with pointed tweezers or a small flat-blade screwdriver.

(4) Adding solder melting disassembly method

 Add some solder to the pins of the integrated block to be disassembled, so that the solder joints of the pins of each column are connected, so as to facilitate heat transfer and facilitate disassembly. When disassembling, use an electric soldering iron to pry and pry with a pair of pointed tweezers or a small flat-blade screwdriver for each row of pins heated, and alternately heat the two rows of pins until they are removed.

(5) Disassembly method of multi-strand copper wire suction tin

Remove the plastic sheath of the multiple-strand copper-core plastic wire, and apply the rosin alcohol solution to the multiple-strand copper-core wire. After the electric soldering iron is heated, the multi-strand copper core wire is placed on the pins of the integrated block to heat the solder on the pins to the copper wires. Repeat the process several times to suck all the solder on the pins. Then use tweezers or a small flat-bladed screwdriver to gently pry, and the integrated block can be removed.

Disassembly method of chip integrated circuit
1) If the chip integrated circuit has been damaged, you can use a blade to cut the pins of the integrated circuit together, and then use an anti-static soldering iron to solder off the broken pins.

2) If you are not sure whether the integrated circuit is damaged, you can use a piece of enameled wire, pass through the gap under the integrated circuit feet, one end is connected to the fixed component next to the integrated circuit, and one end is pulled outward along the pin. Use an anti-static soldering iron to heat the pins in order to make the pins of the integrated circuit leave the circuit board.

3) Use a knife-edge antistatic soldering iron to heat all pins on one side of the integrated circuit. After all the pins are heated, you can use the small screwdriver to tilt it to remove the heated side, and then use the same method to remove the other side.

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