How can I disassemble an IC block

In circuit maintenance, it is often necessary to remove the IC from the printed circuit board. Because the IC pins are many and dense, it is difficult to remove, and sometimes it will damage the IC and circuit board. Several effective methods for disassembling integrated circuits are summarized here for your reference.

Tin suction and disassembly method.

Use a tin absorber to disassemble the integrated block, which is a common professional method. The tool used is an ordinary suction and welding dual-purpose electric iron, with a power of more than 35W. When removing the integrated block, just place the heated dual-purpose electric soldering iron head on the pin of the integrated block to be removed. After the solder joint is melted and sucked into the fine tin, the integrated block can be removed after the solder of all the pins are sucked.

Medical hollow needle disassembly.

Take a couple of medical 8 to 12 hollow needles. When used, it is appropriate that the inner meridian of the needle just covers the pin of the integrated block. When disassembling, melt the pin solder with the soldering iron, cover the pin with the needle in time, then remove the soldering iron and rotate the needle, and pull out the needle after the solder solidifies. This allows the pin to be completely separated from the printed board. Once all the pins have been done this way, the block can be easily removed.

Electric soldering brush with disassembly method.

This method is simple and easy to do, as long as you have an electric iron and a small brush. When disassembling the integrated block, the electric iron is heated first. When the soldering tin on the pin is melted at the temperature of dissolving tin, the dissolved solder is swept away with the brush. This separates the pin of the block from the printed board. The method can be carried out separately or separately. Finally, pry off the block with pointed tweezers or a small "one" flathead screwdriver.

Effective IC disassembly method sharing

In circuit maintenance, it is often necessary to remove the IC from the printed circuit board. Because the IC pins are many and dense, it is difficult to remove, and sometimes it will damage the IC and circuit board.

Electric soldering brush with disassembly method.

This method is simple and easy to do, as long as you have an electric iron and a small brush. When disassembling the integrated block, the electric iron is heated first. When the soldering tin on the pin is melted at the temperature of dissolving tin, the dissolved solder is swept away with the brush. This separates the pin of the block from the printed board. The method can be carried out separately or separately. Finally, pry off the block with pointed tweezers or a small "one" flathead screwdriver.

Razor blade removal method.

Some patch components and patch integrated blocks can be disassembled by this method. General patch integrated blocks are densely packed with many pins, which ordinary people would not dare to disassemble. This trick is learned by Cao Zhengfang and me in Ensimei Electronic Co., LTD., by adding tin to the pin of the integrated block first (with rosin, add an appropriate amount). The blade can then be pushed in from underneath and taken out in a few seconds, so the block is detached from the board, but what about all the tin left on the block? Grab the block with tweezers, add as much tin as you can, and use the cautery to drag it off a little bit.

Medical hollow needle disassembly.

Take a couple of medical 8 to 12 hollow needles. When used, it is appropriate that the inner meridian of the needle just covers the pin of the integrated block. When disassembling, melt the pin solder with the soldering iron, cover the pin with the needle in time, then remove the soldering iron and rotate the needle, and pull out the needle after the solder solidifies. This allows the pin to be completely separated from the printed board. Once all the pins have been done this way, the block can be easily removed.

Multi strand copper wire tin absorption disassembly method.

Is the use of multiple strands of copper core plastic wire, remove the plastic skin, the use of multiple strands of copper core wire (short wire can be used). Before use, put the rosin alcohol solution on the multiple strands of copper core wire. After the electric soldering iron is heated, put the multiple strands of copper core wire on the integrated block pin for heating, so that the tin welding on the pin will be absorbed by the copper wire, and the part that absorbs the solder can be cut off. Repeat several times and all the solder on the pin can be sucked away. Braided wire in shielded wire can also be used if possible. As long as the solder is sucked up, gently pry with tweezers or a small "one" screwdriver, the integrated block can be removed.

Add solder melt disassembly method.

This method is a convenient method. As long as some solder is added to the pins of the integrated block to be dismantled, the solder joints of each column of pins are connected, so as to facilitate heat transfer and facilitate disassembly. When disassembling, each row of pins heated by electric iron should be pry with pointed tweezers or small "one" flat-head screwdriver. The two rows of pins should be heated alternately until removed. In general, each column of pins can be removed by heating twice.

Tin suction and disassembly method.

Use a tin absorber to disassemble the integrated block, which is a common professional method. The tool used is an ordinary suction and welding dual-purpose electric iron, with a power of more than 35W. When removing the integrated block, just place the heated dual-purpose electric soldering iron head on the pin of the integrated block to be removed. After the solder joint is melted and sucked into the fine tin, the integrated block can be removed after the solder of all the pins are sucked.